Tag: spaceflight

Repost: The real meaning of the Apollo 8 Earthrise image

11:19 am

I wrote this essay in 2018, to celebrate the fiftieth anniversary of the Apollo 8 mission to the Moon. I think it worth reposting again, especially because stories about Apollo 8 still refuse to show the Earthrise image as Bill Anders took it.
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Earthrise, as seen by a space-farer
Earthrise, as seen by a space-farer

Today is the fiftieth anniversary of the moment when the three astronauts on Apollo 8 witnessed their first Earthrise while in orbit around the Moon, and Bill Anders snapped the picture of that Earthrise that has been been called “the most influential environmental picture ever taken.”

The last few days have seen numerous articles celebrating this iconic image. While all have captured in varying degrees the significance and influence of that picture on human society on Earth, all have failed to depict this image as Bill Anders, the photographer, took it. He did not frame the shot, in his mind, with the horizon on the bottom of the frame, as it has been depicted repeatedly in practically every article about this image, since the day it was published back in 1968.

Instead, Anders saw himself as an spaceman in a capsule orbiting the waist of the Moon. He also saw the Earth as merely another space object, now appearing from behind the waist of that Moon. As a result, he framed the shot with the horizon to the right, with the Earth moving from right to left as it moved out from behind the Moon, as shown on the right.

His perspective was that of a spacefarer, an explorer of the universe that sees the planets around him as objects within that universe in which he floats.

When we here are on Earth frame the image with the horizon on the bottom, we immediately reveal our limited planet-bound perspective. We automatically see ourselves on a planet’s surface, watching another planet rise above the distant horizon line.

This difference in perspective is to me the real meaning of this picture. On one hand we see the perspective of the past. On the other we see the perspective the future, for as long humanity can remain alive.

I prefer the future perspective, which is why I framed this image on the cover of Genesis: the Story of Apollo 8 the way Bill Anders took it. I prefer to align myself with that space-faring future.

And it was that space-faring future that spoke when they read from Genesis that evening. They had made the first human leap to another world, and they wished to describe and capture the majesty of that leap to the world. They succeeded beyond their wildest dreams.

Yet, they were also still mostly Earth-bound in mind, which is why Frank Borman’s concluding words during that Christmas eve telecast were so heartfelt. He was a spaceman in a delicate vehicle talking to his home of Earth, 240,000 miles away. “And from the crew of Apollo 8, we close with good night, good luck, a Merry Christmas, and God bless all of you — all of you on the good Earth.” They longed deeply to return, a wish that at that moment, in that vehicle, was quite reasonable.

Someday that desire to return to Earth will be gone. People will live and work and grow up in space, and see the Earth as Bill Anders saw it in his photograph fifty years ago.

And it is for that time that I long. It will be a future of majesty we can only imagine.

Merry Christmas to all, all of us still pinned down here on “the good Earth.”

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SpaceX launches two German military radar satellites

10:39 am

SpaceX today successfully launched two German military radar surveillance satellites, completing a planned three-satellite constellation, with its Falcon 9 rocket lifting off from Vandenberg Space Force Base in California.

The first stage completed its eighth flight, landing back at Vandenberg.

This launch almost certainly in the past would have launched on a Arianespace rocket, but Arianespace presently has no operational rocket, its Ariane-5 rocket retired and its Ariane-6 rocket not yet operational. Furthermore, its Vega and Vega-C rockets are grounded due to launch failures, and its partnership with Russia ended with Russia’s invasion of the Ukraine. Thus, SpaceX gets the business, being less expensive than ULA (which also has no rockets available right now to handle this launch) and there being no other company capable of launching such a payload.

The leaders in the 2023 launch race:

94 SpaceX
61 China
18 Russia
8 Rocket Lab
7 India

American private enterprise now leads China in successful launches 108 to 61, and the entire world combined 108 to 97. SpaceX now trails the rest of the world (excluding other American companies) 94 to 97.

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SpaceX launches 23 Starlink satellites

8:54 pm

Early on December 23, 2023 SpaceX successfully launched another 23 Starlink satellites, its Falcon 9 rocket lifting off from Cape Canaveral.

The first stage successfully completed its 19th flight, landing on a drone ship in the Atlantic. This reuse was new record. In fact, the reuse numbers of SpaceX’s fleet Falcon 9 first stages are beginning to resemble the reuse numbers of NASA’s shuttle fleet, and are doing so in a significantly shorter period of time and for a lot less money.

The leaders in the 2023 launch race remain the same:

93 SpaceX
61 China
18 Russia
8 Rocket Lab
7 India

American private enterprise now leads China in successful launches 107 to 61, and the entire world combined 107 to 97. SpaceX now trails the rest of the world (excluding other American companies) 93 to 97.

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Curiosity takes a close-up of distant cliffs

11:27 am

Panorama on December 20, 2023
Panorama on December 20, 2023. Click for full image.

Close-up of a distant cliff
Click for original image.

Cool image time! The picture to the right, reduced and sharpened to post here, was taken on December 21, 2023 by the chemistry camera (ChemCam) on the rover Curiosity. Originally designed to take close-ups of rocks very nearby the rover, the science team over time discovered that they could also use this camera to get close-ups of very distant objects, providing them another way to study the geology in Gale Crater and on Mount Sharp.

The picture to the right I think shows the horizon area indicated by the arrow on the panorama above, taken the day before. Note the many many layers, a geological feature that Curiosity has discovered is ubiquitous on Mars. Over eons the entire surface of the red planet has been layered repeatedly by cyclical geological events, producing layers within layers within layers. I guarantee that when Curiosity gets closer to this cliff it will see layers inside the smallest layers ChemCam can see now.

The red dotted line on the panorama above indicates the approximate planned route that Curiosity will eventually take, cutting across in front of that mountain and turning south somewhere near but to the west of where the cliff in this picture is located.
» Read more

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Firefly successfully launches for the second time in 2023

10:41 am

Alpha seven seconds after liftoff
Alpha seven seconds after liftoff

UPDATE #2: According to a Firefly tweet on X, the second stage failed to fire its second burn. The satellite however was deployed, communications established, and mission operations started. Though its orbit will decay prematurely, it appears the customer, the Space Force, will achieve most of its mission objectives. This should be considered a successful launch, albeit not one that Firefly will want to repeat in this manner.

UPDATE: It appears the upper stage might have had a problem in its final engine burn intended to circularize the orbit for deployment. Either the burn failed to occur, or did not fire correctly. See this tweet. (Hat tip Jay.) I have found other reports that indicate the same question.

The question now is whether this is considered a successful launch. One of its main tasks was to demonstrate fast assembly and prelaunch procedures, for the Space Force. This was accomplished. If the satellite cannot function however is isn’t a full success. I will wait for more information before deciding whether to remove it from the launch stats.

Original post:
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Firefly today successfully completed its second launch in 2023, its third launch overall, its Alpha rocket lifting off from its launchpad at Vandenberg in California.

With this launch Firefly also met its launch prediction for 2023, two launches. The mission was its second for the Space Force this year, both designed to test quick launch procedures. As of posting the payload has not been deployed.

The leaders in the 2023 launch race remain the same:

92 SpaceX
61 China
18 Russia
8 Rocket Lab
7 India

American private enterprise now leads China in successful launches 106 to 61, and the entire world combined 106 to 97. SpaceX still trails the rest of the world (excluding other American companies) 92 to 97.

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Chinese astronauts do spacewalk to repair Tiangong-3 solar panel

9:27 am

Two Chinese astronauts yesterday completed a 7.5 hour spacewalk on that country’s Tiangong-3 space station to test a repair technique to what the state-run press said was minor damage on a solar panel from micrometeorites.

The EVA posed new challenges for the astronauts, according to Dong Nengli, deputy chief designer of China’s human spaceflight program. “For the previous extravehicular activities, the major tasks for astronauts were to install and check. This round of extravehicular activities on Thursday we call experimental servicing,” Dong told CCTV. “This time the astronauts operated on one of the solar wings. It is flexible, to a certain extent, and also very thin, which limits the space of operation to a certain degree,” Dong said.

Dong added that the successful EVA meant the teams had mastered the ability for some extravehicular repairs. Success was thus, “laying a solid foundation for us to guarantee the space station’s safety and reliability in the future.”

It must be noted that no specific details about what was done were provided, nor did the short video released by China showing highlights of the spacewalk show the specific repair work.

Nonetheless, there is an aspect of China’s space station that makes it a far more powerful national symbol than ISS: It is China’s alone, built, launched, occupied, and maintained by China alone. It fuels national pride in a way that ISS never has, because President Bill Clinton decided to use it in the 1990s for foreign policy concerns by giving the Russians an equal partnership. Neither the U.S. nor Russia have obtained the same kind of prestige at home and abroad because neither really built ISS on their own. It was a shared effort, which meant neither could claim it.

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A glacial lake on Mars?

12:40 pm

A glacial lake in a
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on August 30, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

It shows what appears to be a glacial flow of ice, flowing downhill to the southwest and inside a wide canyon about three miles across. The canyon rims to the north and south are about 2,000 to 2,100 feet above the canyon’s lowest point, indicated by the string of “+” signs.

This close-up view immediately suggests a canyon whose glacier flows outward to the southwest into open lowland terrain, though the three craters, because they are undistorted, suggests that this flow is presently not active. That suggestion however would be wrong. It is always necessary to understand Martian geology to not only take close-in views at high resolution, but to zoom back and see the terrain in context.
» Read more

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New Hubble image of Saturn

10:04 am

Saturn and its rings, as seen by Hubble

The annotated image above was taken by the Hubble Space Telescope on October 22, 2023, showing Saturn, its glorious rings, and several of its dozens of moons from a distance of about 850 million miles. For the unannotated version, go here. Of all the features, the spokes in the rings are the most intriguing.

Saturn’s spokes are transient features that rotate along with the rings. Their ghostly appearance only persists for two or three rotations around Saturn. During active periods, freshly-formed spokes continuously add to the pattern. In 1981, NASA’s Voyager 2 first photographed the ring spokes. Hubble continues observing Saturn annually as the spokes come and go. This cycle has been captured by Hubble’s Outer Planets Atmospheres Legacy (OPAL) program that began nearly a decade ago to annually monitor weather changes on all four gas-giant outer planets.

Hubble’s crisp images show that the frequency of spoke apparitions is seasonally driven, first appearing in OPAL data in 2021 but only on the morning (left) side of the rings. Long-term monitoring shows that both the number and contrast of the spokes vary with Saturn’s seasons. Saturn is tilted on its axis like Earth and has seasons lasting approximately seven years.

This year, these ephemeral structures appear on both sides of the planet simultaneously as they spin around the giant world. Although they look small compared with Saturn, their length and width can stretch longer than Earth’s diameter!

Though the origin of the spokes remains unsolved, the leading theory proposes they are caused by interactions between Saturn’s magnetic field and the seasonal changes in solar radiation.

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Ingenuity’s engineers explain what they have learned flying the helicopter on Mars

9:49 am

Link here. The essay details carefully the problems they have faced, and how they have not only overcome them but used them to refine operations to squeeze far more capabilities out of the helicopter, beyond its initial design.

Saving flight time saves energy, reduces heating, and provides more freedom to use slower speeds to tiptoe around disruptive terrain that might otherwise endanger or significantly degrade the landing accuracy of the helicopter. Higher speeds and higher accelerations reduce the time needed to execute a given flight path. Higher altitudes permit higher speeds, as the wider field of view helps to keep ground features in view of Ingenuity’s navigation camera longer, counteracting the effect of increased speed. Expanding Ingenuity’s flight envelope had the potential to relax flight planning constraints and allow Ingenuity to operate more effectively alongside Perseverance.

As a result, beginning with flight 45 the team has made changes to increase flight speeds and acceleration at every point of every flight, thus allowing the helicopter to fly higher and farther with less strain.

This report however does not provide any information on Ingenuity’s last two flights, especially its 68th, which did not go as planned. The helicopter appears to be in good shape (the team has already planned the 69th flight, which was supposed to happen two days ago), but a more detailed update would be appreciated.

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ULA’s Vulcan rocket fully stacked for the first time

9:39 am

Peregrine landing site
The landing site for Astrobotic’s Peregrine lunar lander

In preparation for its targeted January 8, 2024 launch, ULA’s Vulcan rocket has now been fully stacked for first time in its assembly building at Cape Canaveral.

ULA’s new rocket has rolled between its vertical hangar and the launch pad at Cape Canaveral Space Force Station several times for countdown rehearsals and fueling tests. But ULA only needed the Vulcan rocket’s first stage and upper stage to complete those tests. The addition of the payload shroud Wednesday marked the first time ULA has fully stacked a Vulcan rocket, standing some 202 feet (61.6 meters) tall, still surrounded by scaffolding and work platforms inside its assembly building.

It will next be rolled to the launchpad for some final checks prior to launch on January 8, 2023. Unlike most first launches, it carries a real payload, Astrobotic’s Peregrine lunar lander, which hopes to softly place several NASA and commercial payloads near the Gruithuisen Domes in the northwest quadrant of the Moon’s visible hemisphere, as shown on the map above.

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White House issues “policy framework” to lobby for its space regulatory proposal

9:28 am

Faced with stiff opposition from industry and politicians from both parties in Congress to its regulatory proposal issued in mid-November, the White House yesterday released what it called a “policy framework” for implementing that proposal.

You can read this policy framework here [pdf]. It is filled with high-sounding claims about its goal is to encourage private development and reduce red tape, but in the end it only adds more government entities to the entire bureaucracy that regulates commercial space. From the framework itself:

The Secretaries of Commerce and Transportation will co-lead a Private Sector Space Activities Interagency Steering Group in consultation with the Chairperson of the Federal Communications Commission (FCC), comprising representation from the Departments of Defense, Energy, Homeland Security, Interior, and State, the National Aeronautics and Space Administration (NASA), the Office of the Director of National Intelligence, the Office of Science and Technology Policy, and any other Federal entities with expertise or equities pertaining to private sector novel space activities, including relevant stakeholders from the Executive Office of the President. The Steering Group serves as a coordinating body to ensure that the U.S. Government oversight system is prepared to meet U.S. priorities while taking into consideration the competitiveness of U.S. industry now and into the future.

One of the criticisms of the White House proposal from mid-November was that it would split regulation between Commerce and Transportation, thus increasing the complexity for commerical companies. This steering group is clearly an effort to answer those complaints, but based on this proposal, it simply adds one more bureaucratic layer to the mix, making things even more complicated.

The framework also calls for the expansion of the government’s regulatory footprint on several fronts, such as controlling orbital debris, and achieved through “expanding existing, or establish new, federal advisory committees to account for all expanded space authorities in furtherance of this Framework and related legislative proposals.”

From the viewpoint of freedom, this entire proposal reads like a zombie end-of-the-world horror film, with bureaucratic zombies appearing endlessly from all directions, aimed at consuming any independent private company as quickly and as thoroughly as possible.

The original commercial space act proposal from Congress, that the Biden administration (and most Democrats) oppose but carries the endorsement of the private commercial space industry, was passed by its House committee, but still needs to be voted on by the full House, as well as the Senate. Because it remains in limbo, the White House has issued this framework, in the hope it can give its side the ammunition needed to defeat that bill and replace it with the White House’s.

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A movie of 14 years of gamma ray observations from space

8:49 am

Link here. I have also embedded the movie below. The movie was made from fourteen years of observations by the Fermi Gamma-Ray Telescope in orbit around the Earth. From the press release:

Gamma rays are the highest-energy form of light. The movie shows the intensity of gamma rays with energies above 200 million electron volts detected by Fermi’s Large Area Telescope (LAT) between August 2008 and August 2022. For comparison, visible light has energies between 2 and 3 electron volts. Brighter colors mark the locations of more intense gamma-ray sources.

“One of the first things to strike your eye in the movie is a source that steadily arcs across the screen. That’s our Sun, whose apparent movement reflects Earth’s yearly orbital motion around it,” said Fermi Deputy Project Scientist Judy Racusin, who narrates a tour of the movie, at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

Most of the time, the LAT detects the Sun faintly due to the impact of accelerated particles called cosmic rays – atomic nuclei traveling close to the speed of light. When they strike the Sun’s gas or even the light it emits, gamma rays result. At times, though, the Sun suddenly brightens with powerful eruptions called solar flares, which can briefly make our star one of the sky’s brightest gamma-ray sources.

The movie shows the sky in two different views. The rectangular view shows the entire sky with the center of our galaxy in the middle. This highlights the central plane of the Milky Way, which glows in gamma rays produced from cosmic rays striking interstellar gas and starlight. It’s also flecked with many other sources, including neutron stars and supernova remnants. Above and below this central band, we’re looking out of our galaxy and into the wider universe, peppered with bright, rapidly changing sources.

Most of these are actually distant galaxies, and they’re better seen in a different view centered on our galaxy’s north and south poles. Each of these galaxies, called blazars, hosts a central black hole with a mass of a million or more Suns.

Fermi is essentially mapping the high energy objects of the entire universe.
» Read more

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Russia launches military satellite

8:37 am

Russia early this morning successfully launched a classified military satellite, its Soyuz-2 rocket lifting off from its Plesetsk spaceport in northern Russia.

No word on where the rocket’s strap-on boosters or first stage crashed within Russia.

The leaders in the 2023 launch race:

92 SpaceX
61 China
18 Russia
8 Rocket Lab
7 India

American private enterprise still leads China in successful launches 105 to 61, and the entire world combined 105 to 97. SpaceX by itself now trails the rest of the world (excluding other American companies) 92 to 97.

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Starship prototype #28 completes full duration static fire test

8:49 pm

Gearing up for Starship/Superheavy orbital test flight #3: Starship prototype #28 today successfully completed a full duration static fire test, with all six engines firing for about five seconds.

The link goes to SpaceX’s X feed, and shows that test.

This is more evidence that SpaceX intends to be ready in all ways to do that third orbital test flight of Superheavy/Starship by mid-January, at the latest. It also suggests the company is getting close to finishing its investigation into the previous test flight in mid-November.

Of course, none of this means it will launch in mid-January. I predict SpaceX will be stuck twiddling its thumbs waiting for a launch license from the FAA, which will also be waiting for an okay from Fish & Wildlife. Both will likely be forced to work as slowly as possible, likely because of interference from the White House.

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Glacial layers in Mars’ glacier country

2:40 pm

Glacial layers in Mars' glacier country
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on August 20, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It features a 250-foot-high north-south cliff that appears to have numerous horizontal layers within it.

Moreover, both on the plateau above the cliff as well as the floor below it, the entire surface seems to resemble a thick snow/ice field, made even more evident by the distortion of many craters and the apparent glacial material inside each crater.

The layers suggest that this ice was laid down in a series of cycles. During cold periods snow fell and accumulated as ice over time. When things became warmer some of that ice sublimated away, but not all. With the next cold cycle a new layer was put down.

The many layers suggest many climate cycles on Mars, none of which were caused by SUVs or coal-firing electrical power stations.
» Read more

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Ingenuity’s most recent flight, the 68th, a mystery

9:54 am

Overview map
Click for interactive map.

UPDATE: See this December 26, 2023 post for more accurate information.

Original post:
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According to a recent update to the flight log of the Mars helicopter Ingenuity, it finally completed its 68th flight on December 15, 2023, not on December 9, 2023 as announced in the flight plan on December 8th.

More significantly, the flight only traveled 1,289 feet (393 meters), not the 2,716 feet (828 meters) intended. The flight was supposed to travel out to the northeast and then return to its take-off point, indicated by the green dot on the map above, completing a “flight test” as well as scouting the ground below. It appears it did not do this, but where the 68th flight actually went and landed has as yet not been released. According to the flight plan, Ingenuity likely landed somewhere in Neretva Vallis to the northeast, as indicated by the green line.

What we do know is that the engineering team knows enough about Ingenuity’s condition to release today the flight plan for the 69th flight, which was actually scheduled to occur yesterday. That flight plan calls for Ingenuity to travel about 2,300 feet to the east-northeast and then return to its take-off point.

Meanwhile, Perseverance (the blue dot) is working its way west back to its planned route, the red dotted line.

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Congress passes short term extension of commercial space regulatory “learning period”

9:19 am

The Senate yesterday passed a short term extension of the regulatory “learning period” at the FAA that limits its ability to regulate commercial space.

[The Senate] quickly passed an extension of the FAA’s authorization, a final piece of “must pass” legislation before the end of the year. The bill (H.R. 6503) passed the House on December 11. Among other things, it extends the “learning period” for commercial human spaceflight until March 9, 2024 that otherwise would have expired on January 1. The learning period, or “moratorium,” prohibits the FAA from promulgating new regulations on commercial human spaceflight while the industry is in its infancy.

The president still needs to sign this bill, but that is expected.

Originally passed in 2004 as an eight-year period, this “learning period” has been extended several times since. The industry wants a longer extension, as it still considers itself quite rightly to be in an experimental test phase, not operational in the sense of airplane manufacture.

Not that this extension matters. It appears in the past two years that the regulators at the FAA have decided to ignore the law and make believe this learning period really doesn’t exist, based on how that agency has treated test launches by SpaceX and others. Rather than let their launches proceed quickly as tests, the FAA has begun to treat each test as an operational flight that requires a long investigation before further launch approvals are given.

Unless there is a major change in leadership in the White House, we should expect a major slow-down of the American launch industry in the coming years, regardless of whether this “learning period” is extended or not.

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A bubbly dwarf galaxy

9:09 am

A bubbly dwarf galaxy
Click for original image.

Cool image time! The picture to the right, cropped and reduced to post here, was released today by the science team of the Hubble Space Telescope, and shows an irregular dwarf galaxy that is about seven million light years away.

Twelve camera filters were combined to produce this image, with light from the mid-ultraviolet through to the red end of the visible spectrum. The red patches are likely interstellar hydrogen molecules that are glowing because they have been excited by the light from hot, energetic stars. The other sparkles on show in this image are a mix of older stars. An array of distant, diverse galaxies appear in the background, captured by Hubble’s sharp view.

The data used in this image were taken by Hubble’s Wide Field Camera 3 and the Advanced Camera for Surveys from 2006 to 2021.

The picture was taken as part of a study of dwarf galaxies, their make-up, and how their mergers eventually create the larger galaxies like the Milky Way.

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First segments of Extremely Large Telescope have shipped to Chile

8:58 am

After 20 years of development, the first eighteen segments of Europe’s Extremely Large Telescope (ELT) have now shipped to Chile, with another 780 more segments to go.

The assembly of the telescope’s massive mirrors will take place over the next 4 years. This week, the first segments of what will be the main mirror – called ‘M1’ – arrived in Chile.

Once complete in 2028, these segments will create a primary mirror 40 meters across, about 131 feet, four times larger than the 10.4 meter Gran Telescopio in the Canary Islands, presently the largest telescope in operation.

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Launch of Intuitive Machines Nova-C lunar lander delayed until February

8:45 am

South Pole of Moon with landing sites

Because of scheduling conflicts impacting other SpaceX launches now, SpaceX and Intuitive Machines have delayed the launch of the latter’s Nova-C lunar lander from a mid-January to a mid-February launch window.

The conflict involves the use of the launchpad, that the Falcon Heavy also uses. Technical issues had forced SpaceX to reschedule its next launch to December 28, 2023, leaving little time afterward to reconfigure the pad for the Falcon 9 Nova-C mid-January launch window. Any Falcon Heavy launch delays due to weather would likely make that mid-January window impossible, so the companies have decided better to reschedule now.

Nova-C is targeting a crater rim near the Moon’s south pole, as shown on the map to the right. The floor of that crater is thought to be permanently shadowed, but Nova-C does not have the capability to enter it. This mission is mostly an engineering test mission, to prove Intuitive Machine’s design. If it works, it will operate on the Moon surface for one lunar day, about two weeks. The company then has two more lunar missions contracted with NASA, with the next mission aiming to fly in 2024 as well.

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A land of buttes on Mars

11:14 am

A land of buttes on Mars
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on October 4, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Labeled a “terrain sample” by the science team, it was likely shot not as part of any specific research project but to fill a gap in the schedule so as to maintain the camera’s proper temperature. When the camera team has to do this they try to pick targets that are of some interest. Usually they succeed, considering the enormous gaps we presently have of Mars’ geological history.

This picture is no different. It shows a land of buttes and mesas, all ranging from 20 to 200 feet high, surrounded by canyons filled with ripple dunes of Martian dust. If you look at the floor of those canyons closely, you will notice that where there are no ripple dunes the ground is slightly higher and smooth. It is as if that ground was a kind of sandstone that was eroded away by wind into sand, which then formed the dunes.
» Read more

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Spain’s new space agency

9:32 am

Link here. The article provides a detailed description of the history leading up to the formation in March 2023 of Spain’s new space agency, Agencia Espacial Española (AEE) (the Spanish Space Agency in English).

It appears the goal was to consolidate Spain’s government space operations from eleven different agencies so as to better coordinate that government’s work with the nation’s burgeoning new commercial space sector.

By law, Spain has created the AEE without any increase in public spending. The new agency has been allocated an initial budget of 700 million euros per year, which was primarily drawn from funding for ESA [European Space Agency] participation, the CDTI, and INTA [two other Spanish agencies]. However, it is expected that the AEE will receive higher budgets in the future for the development of its own programs outside those directly linked to the ESA. The task of financing space activity public and private alike is of utmost importance, and one of the agency’s roles should be to create mechanisms for making investment attractive and effective, either directly or through public-private partnerships — a model that is producing excellent results in several countries around the world, like the United States. [emphasis mine]

It appears the goal is to emulate the policies followed by NASA in the past few years, buy services and products from the private sector rather than build these things within the government. If so, AEE will likely help jumpstart that new space industry. Whether it can stay focused on this goal, or shift into a typical government empire-building operation that sucks the life out of everything, will be its real fundamental test.

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Firefly schedules second launch in 2023

9:19 am

Firefly has now scheduled the second launch of its Alpha rocket in 2023, with a launch window of about 20 minutes on the morning of Decmeber 20, 2023.

The payload is a smallsat from Lockheed Martin testing new antenna technology, but the launch is for the Space Force. Like the previous September 15, 2023 launch, it is designed to test the ability of Firefly to get a payload into orbit quickly, from assembly to launch.

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Laser communication tests with Psyche have now included a cat video

9:06 am

Following up on the first tests in mid-November, engineers on December 11, 2023 downloaded a 15-second cat video from the asteroid probe Psyche at a distance of 19 million miles, demonstrating fast download speeds 10 to 100 times faster than the best radio transmissions.

The demo transmitted the 15-second test video via a cutting-edge instrument called a flight laser transceiver. The video signal took 101 seconds to reach Earth, sent at the system’s maximum bit rate of 267 megabits per second (Mbps). Capable of sending and receiving near-infrared signals, the instrument beamed an encoded near-infrared laser to the Hale Telescope at Caltech’s Palomar Observatory in San Diego County, California, where it was downloaded. Each frame from the looping video was then sent “live” to NASA’s Jet Propulsion Laboratory in Southern California, where the video was played in real time.

I have embedded that video below. More details about the information in that video can be found here.
» Read more

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China’s X-37B copy deploys six independent satellites

8:56 am

Four days after it was launched last week, China’s unnamed reuseable mini-shuttle, essentially a copy of the Space Force’s X-37B, deployed six independent small satellites that appear to be emitting a variety of signals.

The objects have been given letter names, A through F. Because their deployment occurred at different times they are in different orbits than the mini-shuttle, though all orbits cross at some point. The radio signals appear to be either simple beacons or signals of an as-yet undetermined nature.

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SpaceX launches 23 Starlink satellites

9:10 pm

SpaceX tonight successfully launched another 23 Starlink satellites, its Falcon 9 rocket lifting off from Cape Canaveral.

The first stage completed its third flight, landing on a drone ship in the Atlantic.

The leaders in the 2023 launch race:

92 SpaceX
61 China
17 Russia
8 Rocket Lab
7 India

American private enterprise now leads China in successful launches 105 to 61, and the entire world combined 105 to 96. SpaceX now trails the rest of the world combined (excluding American companies) 92 to 96.

This was the 201st launch this year, the first time ever that the global launch industry has exceeded 200 launches. Before 2021, annual global launch totals were generally less than 100. It now looks like there is a good chance they will never again be as low as that. (I should have noted this at the 200th launch, but missed it.)

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The nearest star-forming region, as seen in infrared by Webb

10:05 am

The nearest star-forming region, as seen by Webb
Click for original image.

Time for another cool image on this somewhat quiet Monday. The false-color infrared image to the right, reduced and sharpened to post here, was taken by the Webb Space Telescope, and shows the Rho Ophiuchi star-forming region, the nearest to our solar system at a distance of about 460 light years.

It is a relatively small, quiet stellar nursery, but you’d never know it from Webb’s chaotic close-up. Jets bursting from young stars crisscross the image, impacting the surrounding interstellar gas and lighting up molecular hydrogen, shown in red. Some stars display the telltale shadow of a circumstellar disc, the makings of future planetary systems.

The young stars at the centre of many of these discs are similar in mass to the Sun or smaller. The heftiest in this image is the star S1, which appears amid a glowing cave it is carving out with its stellar winds in the lower half of the image. The lighter-coloured gas surrounding S1 consists of polycyclic aromatic hydrocarbons, a family of carbon-based molecules that are among the most common compounds found in space.

There are two features that are most compelling to me in this image. First, the red hydrogen jet that cuts across the entire right half of the image from top to bottom. At the top you can see how that jet is pushing material before it. Second, we have the cave-like structure surround S1, the central star. The yellowish cloud is almost like a hand cupped around that star.

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A galaxy of violence

9:53 am

A galaxy of violence
Click for original image.

Time for another cool image! The picture to the right, cropped, reduced, and sharpened to post here, was taken by the Hubble Space Telescope, and shows a well defined spiral galaxy face-on in optical wavelengths.

This whirling image features a bright spiral galaxy known as MCG-01-24-014, which is located about 275 million light-years from Earth. In addition to being a well-defined spiral galaxy, MCG-01-24-014 has an extremely energetic core, known as an active galactic nucleus (AGN), so it is referred to as an active galaxy. Even more specifically, it is categorised as a Type-2 Seyfert galaxy. Seyfert galaxies host one of the most common subclasses of AGN, alongside quasars. Whilst the precise categorisation of AGNs is nuanced, Seyfert galaxies tend to be relatively nearby ones where the host galaxy remains plainly detectable alongside its central AGN, while quasars are invariably very distant AGNs whose incredible luminosities outshine their host galaxies.

In contrast, the core of our own Milky Way galaxy is very quiet, which is likely a factor in why it was possible for life to form on Earth.

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Webb takes another infrared image of Uranus

9:32 am

Uranus as seen in infrared by Webb
Click for original image. Go here for Uranus close-up

Astronomers have used the Webb Space Telescope to take another infrared image of Uranus, following up on earlier observations with Webb in April.

The new false-color infrared picture is to the right, cropped, reduced, and enhanced to post here. Though the close-up of Uranus is in the left corner, the overall view is somewhat wider than the image I highlighted previously, showing many background galaxies and at least one star. The star is the spiked bright object on the left. In false color the galaxies all been given an orange tint, while the blue objects near Uranus are its moons. Because Uranus’s rotational tilt is so extreme, 98 degrees compared to Earth’s 23 degrees, its north pole is presently facing the Sun directly, and is in the center here.

One of the most striking of these is the planet’s seasonal north polar cloud cap. Compared to the Webb image from earlier this year, some details of the cap are easier to see in these newer images. These include the bright, white, inner cap and the dark lane in the bottom of the polar cap, toward the lower latitudes. Several bright storms can also be seen near and below the southern border of the polar cap. The number of these storms, and how frequently and where they appear in Uranus’s atmosphere, might be due to a combination of seasonal and meteorological effects.

The polar cap appears to become more prominent when the planet’s pole begins to point toward the Sun, as it approaches solstice and receives more sunlight. Uranus reaches its next solstice in 2028, and astronomers are eager to watch any possible changes in the structure of these features. Webb will help disentangle the seasonal and meteorological effects that influence Uranus’s storms, which is critical to help astronomers understand the planet’s complex atmosphere.

If you want to see what Uranus looks like to our eyes, check out the Hubble pictures taken in 2014 and 2022. Though fewer features are visible in optical wavelengths, those two images showed long term seasonal changes.

Webb has now revealed some shorter term changes.

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UK finally gives Saxavord spaceport a license

11:33 am

Proposed spaceports surrounding Norwegian Sea
Proposed spaceports surrounding Norwegian Sea.

The Civil Aviation Authority (CAA) in the United Kingdom finally issued a spaceport license today to the Saxavord spaceport on the Shetland Islands, thirteen months after the application was submitted.

This license however does not mean that launches will take place anytime soon. First, Saxavord will have to resume construction of its facilities, which ceased earlier this year because of the CAA hadn’t issued the permit. Moreover, this license does not allow launches. As noted by the CAA:

Spaceport licences allow a person or organisation to operate a spaceport, they are granted in the UK under the Space Industry Act 2018 (SIA). For a launch to happen an operator will need to have developed and proven their technology, be operationally ready, and have a launch licence from the UK Civil Aviation Authority. [emphasis mine]

The highlighted language is especially crushing, because it literally forbids the launch of any new untested rocket. Since every single rocket so far being developed for these two spaceports is new and untested, none will be allowed to launch unless they move operations elsewhere. This requirement explains for example why the startup ABL shifted its next launch from the Sutherland spaceport — it had hoped to launch this year — to Kodiak, Alaska. Orbex will have even more problems, as it has signed a fifty year lease to launch its new Prime rocket from Sutherland, with its rocket factory close by. If it can’t test fly Prime from Sutherland the company will be very badly hampered.

Even if these companies eventually get launch licenses for their untried rockets, expect such approvals to take a very long time, based on the CAA’s past and present history. It took the CAA almost a year to approve Virgin Orbit’s launch license, essentially bankrupting the company.

Nor are my conclusions here — which I have been stating now for more than a year — simply opinions. They have now been confirmed by a new report issued only a few days ago by the UK Space Agency, which admitted the following:
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