Tag: spaceflight

House rejects Artemis; Senate funds Artemis

11:51 am

The Senate gives, the House taketh away: Even as the Democratically-controlled House continues to refuse the Trump administration’s request for $2.6 billion to fund its 2024 manned lunar landing, the Republican-controlled Senate has provided $1.6 billion of those funds in the next COVID-19 stimulus package.

This illustrates why such stimulus packages are utterly corrupt. Much of the money allocated has little to do with helping the country recover from the Wuhan panic, but is instead earmarked for the favorite agencies of the politicians. The Republicans are also trying to use this package to sneak across funding for Artemis without the House Democrats noticing, or being able to object.

It remains to be seen whether that strategy will work. Either way, we continue on the road to bankruptcy and financial collapse, as the federal government is trillions in debt, and simply doesn’t have the money for any of this.

Leave a comment

Glacier country on Mars

12:47 pm

Glacial flow in Protonilus Mensae
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on May 24, 2020 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and provides a wonderful example of the kind of evidence of buried glaciers found extensively in the mid-latitudes of Mars.

This particular region, called Protonilus Mensae, is a region of chaos terrain at the transition zone between the southern cratered highlands and the northern lowland plains. I have featured a number of cool images in Protonilus, all of which show some form of buried glacial flow, now inactive.

The last cool image above was one that the MRO science team had picked to illustrate how to spot a glacier on Mars.

In this particular image are several obvious glacier features. First, we can see a series of moraines at the foot of each glacier in the photo, each moraine indicating the farthest extent of the glacier when it was active and growing. It also appears that there are two major layers of buried ice, the younger-smaller layer near the image’s bottom and sitting on top of a larger more extensive glacier flow sheet. This suggests that there was more ice in the past here, and with each succeeding ice age the glaciers grew less extensive.

Second, at the edges of the flows can be seen parallel ridges, suggestive also of repeated flows, each pushing to the side a new layer of debris.

Third, the interior of the glacier has parallel fractures in many places, similar to what is seen on Earth glaciers.

Protonilus Mensae, as well as the neighboring chaos regions Deuteronilus to the west and Nilosyrtis to the east, could very well be called Mars’ glacier country. Do a search on Behind the Black for all three regions and you will come up with numerous images showing glacial features.

Below is an overview of Protonilus, the red box showing the location of this image. Also highlighted by number are the locations of the three features previously posted and listed above.
» Read more

Leave a comment

NASA announces third Dragon flight crew

9:31 am

NASA today announced four-person Dragon flight crew for that spacecraft’s third flight in the spring, the second official operational flight.

NASA astronauts Megan McArthur and Shane Kimbrough will join JAXA’s Akihiko Hoshide and ESA’s Thomas Pesquet on that flight, which will follow Crew-1 currently scheduled for sometime in late September after Demo-2 concludes. This is a regular mission, meaning the crew will be staffing the International Space Station for an extended period – six months for this stretch, sharing the orbital research platform with three astronauts who will be using a Russian Soyuz spacecraft to make the trip.

Pesquet will be the first European to fly on Dragon. McArthur however is more interesting, in that this will be her first spaceflight in more than a decade. She had previously flown only once before, in 2009 on the last Hubble repair mission. She is also the wife of Bob Behnken, who is on ISS right now having flown on the first Dragon manned mission now preparing for its return to Earth on August 2nd.

The long gap in flights was certainly due to the shuttle’s retirement. Why she didn’t fly on a Soyuz is a question some reporter should ask her at some point.

9 comments

Martian eroding ridges amid brain terrain

12:09 pm

Brain terrain and bisected ridges on Mars
Click for full image.

Today’s very cool image is cool because of how inexplicable it is. To the right, cropped to post here, is a photo taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) of an area of what they call “Ribbed Terrain and Brain Terrain”.

I call it baffling.

Nor am I alone. At the moment the processes that create brain terrain (the undulations between the ridges) remain a complete mystery. There are theories, all relating to ice sublimating into gas, but none really explains the overall look of this terrain.

Making this geology even more baffling are the larger ridges surrounding the brain terrain, all of which appear to have depressions along their crests. Here too some form of sublimation process appears involved, but the details remain somewhat mysterious.
» Read more

One comment

Northrop Grumman about to launch second mission extension robot

10:20 am

Capitalism in space: The success of Northrop Grumman’s first Mission Extension Vehicle (MEV-1) to dock with a dead communications satellite and bring it back to life has set the stage for the second MEV, set for launch on an Ariane 5 before the end of the month.

For MEV-1’s mission, Intelsat decommissioned the 901 satellite and moved it up into the GEO graveyard for rendezvous and docking operations.

However, the main result of the excellent performance of MEV-1 and a full demonstration of the docking and capture process is that MEV-2 will not be required to rendezvous with its target in the GEO graveyard. Nor will the satellite be deactivated. Instead, MEV-2 will move directly to the main operational GEO belt and approach Intelsat 10-02 while the satellite is still actively relaying telecommunications. “Intelsat has confirmed their desire on the next MEV, MEV-2, to do the docking directly in GEO orbit. They will be maintaining customer traffic as we do the docking with MEV-2,” noted Mr. Anderson.

This new approach, which was always the goal for future MEV operations, was aided in large part by confirmation to a high degree of accuracy that all of MEV’s systems worked as planned during Intelsat 901 operations.

The article notes that this concept could even be extended to sending a robot to Hubble to provide it accurate pointing capability when its last gyroscopes finally fail, thus extending the life of that space telescope even farther beyond its original planned fifteen year lifespan that ended in 2005.

9 comments

Today’s fake news in space

1:58 pm

In the past day we have had two space-related stories that sadly illustrate the shallowness of our modern press. Modern mainstream reporters literally know nothing of the subject they are reporting on, and expend zero effort to improve their knowledge.

First we have the story making the rounds about a Russian anti-satellite test. This BBC story,
“UK and US say Russia fired a satellite weapon in space“, is typical. It takes at face value the claims of the military bureaucracies in the United States and the United Kingdom, and makes it sound as if the Russians were doing something new and unique that no one has ever done before.
» Read more

6 comments

SpaceX to raise another billion in private investment capital

11:16 am

Capitalism in space: SpaceX is now in the process of raising another billion dollars in private investment capital in order to fund both its Starlink and Starship projects.

Space Exploration Technologies, Elon Musk’s reusable rocket venture, is in talks to raise $1 billion in series N funding at a valuation of $44 billion, according to documents reviewed by CNBC. SpaceX plans to use the funding to make its Starlink satellite broadband service operational, and to conduct suborbital and orbital test flights of its Starship and SuperHeavy booster launch vehicle.

Up to now SpaceX has raised just under $2 billion in private capital, which they had said was devoted solely to developing Starship. The company had also said that it was developing Starlink with in-house funds. It appears that — having gotten almost 400 satellites in orbit (with many more coming) — they are now willing to seek outside help to make the Starlink system operational, because this situation allows SpaceX to negotiate the best deal with any investor.

It must also be emphasized that SpaceX is developing Starship/Super Heavy entirely from private funds, not government subsidies. This lack of government funds also means a lack of government oversight, which gives SpaceX complete freedom during development. Government oversight would only slow things down and likely prevent the company from innovating.

Instead, it is free to build the first completely reuseable rocket that also happens to be as powerful as a Saturn 5. And it will do it for less total than NASA has and will spend each year on SLS, for more than twenty years.

21 comments

NASA’s safety panel expresses concerns about Starliner

11:02 am

My heart be still: During a teleconference yesterday, members of NASA’s safety panel expressed concerns about Boeing’s Starliner capsule while cautiously and very tentatively endorsing SpaceX’s intention to launch future manned missions with reused Falcon 9 first stages and reused Dragon capsules.

I consider this safety panel worse than useless. For example, based on this news report, they appear to have had little involvement in the NASA/Boeing investigation into the issues that caused the premature de-orbit of first unmanned orbital test flight of Starliner. Instead, it appears they have simply reviewed that investigation, and are now just kibbitzing from the sidelines.

Of course NASA should be concerned about the 80 issues it found, mostly involving software. No one needs this safety panel to tell the agency this.

Meanwhile, the panel’s tentative support for reusing Falcon 9 boosters and Dragon capsules is merely a rubberstamp of already decided NASA policy, and also illustrates the panel’s uselessness. This safety panel spent the last five years blasting everything SpaceX was doing (causing many delays), while literally missing the real elephant in the room, Boeing’s own quality control issues.

It appears to me that NASA is very gently and quietly making the safety panel irrelevant to its operations. Even better would be to disband it entirely. It serves no purpose other than to delay and block future exploration, sometimes foolishly.

Leave a comment

Astra ships next rocket to Alaska for launch

10:43 am

Capitalism in space: The smallsat startup Astra has shipped its next test rocket to Kodiak, Alaska, for its planned six-day launch window, beginning on August 2nd.

The new two-stage launch vehicle, which the company calls Rocket 3.1, will take off from the Pacific Spaceport Complex on Kodiak Island. While the liquid-fueled rocket is designed to reach orbit, Astra says it will consider the test flight a success even it doesn’t enter orbit. “Success for this flight means we accomplish enough to make orbit within three flights, which we have defined as at least achieving a nominal first stage burn,” Astra said in June.

Chris Kemp, Astra’s co-founder and CEO, said the company will not be providing a live video stream of the launch to the public, but will release video imagery of the flight after it occurs. “We do not yet employ production, marketing, or communications folks, so our ability to produce a public webcast is limited,” Kemp said in response to questions from Spaceflight Now. “We are focusing all resources on engineering so that we can reach orbit in the next couple of flights.”

The August 2nd launch date is about two weeks later than they had announced in mid-June, but such a delay is not unreasonable for such a rocket test program.

They had attempted to launch an earlier rocket in March, only to have something go wrong during countdown.

Leave a comment

Dragon update for the ongoing and next mission

10:34 am

Two stories today provide an update of the overall schedule and status of SpaceX’s manned Dragon capsule, both now and into the future.

First, they are preparing for the return of Bob Behnken and Doug Hurley from ISS on August 2nd. Prior to return they will use the station’s robot arm to inspect the capsule’s heat shield to make sure it did not sustain any damage during its two months in space. Such inspections will be standard procedure on future flights, something NASA did not do on shuttle flights until after the Columbia failure.

It is unlikely there is any damage, but making this inspection is plain common sense. If the heat shield has been damaged, the astronauts can stay on board ISS until the next Dragon arrives, which can then bring them home.

Second, NASA and SpaceX have worked out a tentative schedule for that next Dragon manned launch, now set for sometime in late September. The agency wants a bit of time to review the full results of the first demo mission before flying a second.

Based on all that has happened so far, it now appears unlikely that the agency will find anything that prevents that late September flight.

One comment

Slip-sliding away – on Mars

1:00 pm

Faults on Mars
Click for full image.

Today’s cool Martian image, rotated, cropped, and reduced to post here, comes from the camera on Mars Odyssey and was taken on May 18, 2020. It shows an area on Mars where faults and cracks in the ground have caused criss-crossing depressions. In this particular case we can see that the north-south trending fissure at some point got cut in half by east-west trending fault, its northern and southern halves thus getting shifted sideways from each other. For scale the straight section of the northern canyon is about five miles long, with the sideways shift about a mile in length.

As the caption notes, “With time and erosion this region of fault blocks will become chaos terrain,” regions of canyons often cutting at right angles to each other with flat-topped mesas and buttes in between.

Now for the mystery.
» Read more

Leave a comment

Break in fuel line caused LauncherOne failure

9:50 am

Capitalism in space: Virgin Orbit has determined that a break in the oxygen feed line in its LauncherOne rocket caused the failure during its first orbital test flight in late May.

Speaking at a webinar organized by the Space Generation Advisory Council, an organization for young space industry professionals, Dan Hart said the demonstration mission for the LauncherOne rocket May 25 went well until several seconds after the ignition of the NewtonThree engine that powers the rocket’s first stage. “We had a component break in our engine system. It was a high-pressure feed line,” he said. Liquid oxygen “stopped going into the engine and our flight was terminated.”

The company has performed an investigation and identified what needs to be fixed in the engine to strengthen the components that failed. A second LauncherOne rocket is in final integration right now and will be leaving the factory in the next few weeks while modifications to the engine continue. “We’ll be targeting our next flight before the end of the year,” Hart said.

They need to meet that schedule, as in the past few years they have consistently failed to fly when promised.

Leave a comment

Cubesat uses thruster to avoid collision

9:42 am

Capitalism in space: For the first time a cubesat has used a thruster to not only adjust its orbit but to also avoid a collision with another satellite.

From June 23 to July 3, the UWE-4 cubesat fired its NanoFEEP thrusters several times to reduce its altitude by more than 100 meters. By comparison, natural orbital decay would lower the altitude 21 meters in the same timeframe, according to a University of Wuerzburg news release.

One July 2, as the UWE-4 cubesat was lowering its altitude, the University received a warning from the U.S. Air Force’s 18th Space Control Squadron of a July 5 conjunction with a retired Iridium satellite. When UWE-4 mission operations personnel analyzed the conjunction, they determined the UWE-4 cubesat would not collide with the Iridium satellite because it would be orbiting at a lower altitude. As a result of the analysis, UWE-4 mission operations personnel continued firing thrusters to lower the cubesat’s altitude. They received no further conjunction messages.

The thrusters were built by Morpheus Space. Incorporating thrusters onto a cubesat, the size of which fits on the palm of your hand, is quite amazing, and illustrates the growing capability of these tiny satellites.

One comment

Moving ripples on Mars

9:37 am

Using Mars Reconnaissance Orbiter (MRO) high resolution images, scientists have now determined that the giant ripples seen from space are actually moving, albeit very slowly.

Megaripples are found in deserts on Earth, often between dunes. Waves in the sand spaced up to tens of meters apart, they’re a larger version of ripples that undulate every 10 centimeters or so on many sand dunes. But unlike dunes, megaripples are made up of two sizes of sand grains. Coarser, heavier grains cap the crests of megaripples, making it harder for wind to move these features around, says Simone Silvestro, a planetary scientist at Italy’s National Institute of Astrophysics in Naples.

Since the early 2000s, Mars rovers and orbiters have repeatedly spotted megaripples on the Red Planet. But they didn’t seem to change in any measurable way, which led some scientists to think they were relics from Mars’s past, when its thicker atmosphere permitted stronger winds.

Now, using images captured by NASA’s Mars Reconnaissance Orbiter, Silvestro and his colleagues have shown that some megaripples do creep along—just very slowly.

They found that the ripples shift position about four inches per year, which astonished them since they had not believed the winds of Mars were strong enough to move them at all.

Leave a comment

Midnight repost: Elon Musk and the forgotten word

11:59 pm

The tenth anniversary retrospective of Behind the Black continues: Today’s repost comes from October 20, 2011, following Elon Musk’s National Press Club speech where he announced he was going to vertically land the Falcon 9 first stages so they could be reused. In comparing the new commercial competitive space industry with NASA’s government-run space program, I tried to outline the fundamental reason the former was always going to do better than the latter.

———————————————–
Elon Musk and the forgotten word

Elon Musk at National Press Club

When Elon Musk gave his speech at the National Press Club on September 29, he was asked one question to which he really did not know the answer. He faked it, but his response illustrated how completely forgotten is one fundamental fact about American society — even though this fact is the very reason the United States became the world’s most wealthy and powerful nation less than two centuries after its founding.

To explain this fundamental fact I think I need to take a step back and talk about the ongoing war taking place right now over how the United States should get its astronauts into space. On one side we have NASA and Congress, who want NASA to build a new heavy-lift rocket to carry its Orion capsule beyond Earth orbit. On the other side we have a host of independent new space companies, all vying for the chance to launch humans and cargo into space for fun and profit.

Which is right? What system should the United State choose?
» Read more

2 comments

Tianwen-1 successfully launched, on its way to Mars

9:27 pm

UPDATE: According to news reports, China tonight successfully launched Tianwen-1 towards Mars, with arrival expected in February 2021.

Below the fold is a live stream of the launch of the Long March 5 rocket. It is not in English, and since it was not linked to China’s mission control, it only covers the first two minutes or so, after which the rocket went out of sight.

The leaders in the 2020 launch race:

17 China
11 SpaceX
7 Russia
3 ULA
3 Japan

The U.S. still leads China 18 to 17 in the national rankings.
» Read more

11 comments

Rover update: Curiosity pauses to drill

11:27 am

Curiosity's entire journey so far in Gale Crater

Overview map of Curiosity's recent travels

The artist’s oblique drawing above, as well as the map to the right, provide some context as to Curiosity’s present location and its entire journey in Gale Crater. For the overall context of Curiosity’s travels, see my March 2016 post, Pinpointing Curiosity’s location in Gale Crater. For all rover updates since then through May 2020, go here.

Since my last update on July 7, 2020, Curiosity has quickly moved a considerable distance to the east, as planned, skirting the large sand field to the south in its journey to the best path upward onto Mt. Sharp. The science team however has detoured away from their planned route, shown in red on the map, heading downhill a bit in order to find one last good location in the clay unit to drill. They are at that location now and are presently scouting for the best drilling spot.

About a week ago, before heading downhill, they had stopped to take a set of new images of Curiosity’s wheels. » Read more

3 comments

After releasing its Ryugu samples Hayabusa-2’s mission will continue

8:33 am

Japan’s space agency JAXA has revealed that it is looking at two fast-spinning asteroids as possible destinations for its Hayabusa-2 spacecraft after it has dropped off its samples from the asteroid Ryugu on December 6.

The candidate asteroids on the agency’s list are asteroid 2001AV43 which Hayabusa2 would reach in November 2029 after flying by Venus, and asteroid 1998KY26 which the probe would reach in July 2031 after passing by another asteroid.

JAXA says both asteroids are rotating on their axis once every 10 minutes. The high-speed spinning indicates that the asteroids’ inner structures are likely different from that of asteroid Ryugu on the first mission, which consists of pieces of rocks.

The spacecraft will no longer have the equipment for returning additional samples, but everything else is functioning and it has the fuel.

One comment

Tianwen-1 launch set for July 23rd

3:09 pm

China has rolled out its Long March 5 rocket and is now preparing to launch its Tianwen-1 orbiter/lander/rover to Mars this coming Thursday, July 23rd, some time between 12 am and 3 am (Eastern).

A Long March 5 rocket is set for liftoff with China’s Tianwen 1 mission some time between 12 a.m. and 3 a.m. EDT (0400-0700 GMT) Thursday, according to public notices warning ships to steer clear of downrange drop zones along the launcher’s flight path.

Chinese officials have not officially publicized the launch date. Chinese state media outlets have only reported the launch is scheduled for late July or early August, and officials have not confirmed whether the launch will be broadcast live on state television.

This will be the first operational launch of the Long March 5, which has had three previous test launches, with the first two failing. The success of the December launch, as well as the May success of the related Long March 5B, made this Mars mission possible.

After achieving orbit in February 2021 and spending two months scouting the landing site, the lander will descend to the surface, bringing the rover with it. The prime landing site is Utopia Planitia, in the northern lowland plains.

6 comments

Utopia Planitia, the prime landing site for China’s Tianwen-1 Mars rover

1:18 pm

More blobs in Utopia Planitia
Click for full image.

Today’s cool image is not only cool, it gives a nice feel for the likely shallow ice table that is probably found close to the surface throughout the lowland northern plains of Utopia Planitia, which is also the prime landing site for China’s Taenwen-1 Mars lander/rover, scheduled for launch sometime in the next four days. [Update: there are now indications the launch will not occur until early August.]

The photo to the right, rotated, cropped, and reduced to post here, was taken on May 9, 2020 and shows a nice collection of strange land forms on the western edge of Utopia Planitia. In this one picture we can see large mounds that might be evidence of cryovolcanic activity (mud volcanoes), strings of small mounds that might be the same but that also suggest underground faults and voids, and distorted and eroded craters that could have buried glacial material in the interiors.

The largest crater in the upper left looks like it is actually filled with ice that has also spilled over to fill the adjacent and linked depression.

This location is quite typical of Utopia Planitia. See for example this post from May 13, 2020: The blobby wettish flows of Mars. In the mid-latitudes here we find ample evidence that buried very close to the surface is an ice table that when hit by an impact melts to form these strangely shaped craters.

China’s actual target landing area is far to the east of today’s cool image, in an area that is appears far less rough. » Read more

One comment

Active volcanoes on Venus?

9:25 am

Using computer models and past radar images from orbiters, scientists now believe that Venus could have as many as 37 active volcanoes.

The type of feature on Venus they think might still be active is called a coronae, circular features detected by radar and distinct to this planet that have been thought to be inactive ancient volcanic features.

In the new study, the researchers used numerical models of thermo-mechanic activity beneath the surface of Venus to create high-resolution, 3D simulations of coronae formation. Their simulations provide a more detailed view of the process than ever before.

The results helped Montési and his colleagues identify features that are present only in recently active coronae. The team was then able to match those features to those observed on the surface of Venus, revealing that some of the variation in coronae across the planet represents different stages of geological development. The study provides the first evidence that coronae on Venus are still evolving, indicating that the interior of the planet is still churning.

Lots of uncertainty here, but nonetheless this is good science. It also reinforces other evidence in recent years that has suggested active volcanism on Venus.

One comment

SpaceX successfully catches both fairings from a launch

9:12 am

Capitalism in space: For the first time SpaceX yesterday successfully caught both fairings halves in the nets of their ships as they floated down to the ocean on their parasails.

Previously they have mostly plucked the fairings from the sea, though they have caught a few in the netting of the ships. To catch both simplifies the preparation for the next flight enormously, as they never touched the water.

6 comments

Midnight repost: A flag in the dust

10:00 pm

The tenth anniversary retrospective of Behind the Black continues: This essay was posted originally on July 20, 2010, then reposted on July 20, 2011, to celebrate the anniversary of the Apollo 11 landing on the Moon. It seems fitting to post it again, on this, the 51st anniversary of that landing.

————————–
A flag in the dust

Today, July 20th, is the anniversary of the Apollo 11 landing on the Moon, the first time ever that a human being arrived on another planet. Americans love to celebrate this event, as it symbolizes one of the finest moments in our history, when we set out to achieve something truly great and noble and succeeded far better than we could have imagined. Not only did we get to the Moon as promised, over the next three and a half years we sent another five missions, each with increasingly sophisticated equipment, each sent to explore some increasingly alien terrain. Forty-plus years later, no one has come close to matching this achievement, a fact that emphasizes how difficult it was for the United States to accomplish it.

There is one small but very important detail about the Apollo 11 mission, however, that most Americans are unaware of. » Read more

5 comments

SpaceX successfully launches South Korean military satellite

3:02 pm

Falcon 9 first stage after landing

Capitalism in space: SpaceX today successfully launched a South Korean military satellite, with its Falcon 9 rocket using the same first stage that launched two American astronauts to ISS less than two months ago.

This was the company’s fastest turnaround yet of a used first stage, 51 days, which also beats the fastest turnaround ever by the shuttle program, 54 days. And as you can see by the screen capture image to the right, they successfully landed it so that it can be used for a third time.

Watching the camera on that first stage after separation (on SpaceX’s live stream) to landing was most fascinating. After separation its tail end points down to the west and its launch site in Florida. As it curves upward and then down towards its landing in the Atlantic, its small thrusters and grid fins very slowly and gracefully swing that tail to instead point east and down to the drone ship. I had not noticed previously the gentleness of that re-positioning. The daylight clear weather today, plus excellent camera access, made it very obvious.

The leaders in the 2020 launch race:

16 China
11 SpaceX
7 Russia
3 ULA
3 Japan

The U.S. now leads China in the national rankings, 18 to 16.

9 comments

Why the UAE’s Hope Mars Orbiter is really a US mission for UAE’s students

11:10 am

Today there were many many news stories touting the successful launch of the United Arab Emirates’ (UAE) first interplanetary probe, Hope, (al-Amal in Arabic), successfully launched yesterday from Japan. This story at collectSpace is typical, describing the mission in detail and noting its overall goals not only to study the Martian atmosphere but to inspire the young people in the UAE to pursue futures in the fields of science and engineering.

What most of these reports gloss over is how little of Hope was really built by the UAE. The UAE paid the bills, but during design and construction almost everything was done by American universities as part of their education programs, though arranged so that it was UAE’s students and engineers who were getting the education.
» Read more

6 comments
1 … 234 235 236 237 238 … 499