Category: Behind The Black

Galaxies within galaxies within galaxies

9:54 am

Galaxies within galaxies
Click for original image.

Time another cool galaxy image! The picture to the right, cropped, reduced, sharpened, and annotated to post here, was taken by the Hubble Space Telescope as part of a survey project of galaxies where past supernovae had occurred. From the caption:

The location of this faded supernova was observed as part of a study of multiple hydrogen-rich supernovae, also known as type II supernovae, in order to better understand the environments in which certain types of supernovae take place.

Though the picture’s resolution was reduced to post here, I have also included insets at the full released resolution of three of background galaxies, one of which (on the uppermost right) appears to have a second smaller galaxy either associated with it or is another background galaxy even farther away. Such background galaxies are always seen Hubble images, which starkly tell us that the universe is far vaster than we can imaging, with more stars than we can conceive.

The galaxy featured here is interesting in its own right. Though it appears to be a spiral galaxy, its arms are very indistinct, suggesting that is sits between that of an elliptical galaxy (no arms, just a cloud of stars) and a spiral (with well-defined arms).

3 comments

Commercial hi-res Earth imaging satellite constellations limiting Gaza imagery to the public

9:16 am

Once Israel’s ground campaign into Gaza started the new American private commercial hi-res Earth imaging satellite constellation companies began restricting access to their imagery.

Planet, a San Francisco-based company launched in 2010 by former NASA scientists, has in recent days heavily restricted and obscured parts of images over the Gaza Strip for many users, including news organizations. Last week, some images of Gaza were removed from Planet’s web application for downloading imagery, and some have been distributed to interested media outlets through a Google Drive folder. The satellite company told some subscribers that during active conflicts, it may modify pictures published to the archive.

…Some commercial satellite companies appear to be releasing their detailed images — but with a time delay. Planet and a competitor, Maxar Technologies, have released images shared with the New York Times, Washington Post, and other news outlets on a significant time delay. Starting on Nov. 3, both papers shared exclusive images taken by Planet on Nov. 1. Airbus, another major commercial satellite image provider, has not shared images of Gaza.

It appears the companies have done so for two reasons: First, it appears these companies have actually decided they do not wish to reveal any information that might hurt Israel’s ground campaign. This approach differs significantly from the leftist mainstream American press, which either doesn’t care what harm it does, or is eager to sabotage Israel’s effort.

Second, it appears the companies have been reminded of a 1997 federal law, called the Kyl-Bingaman Amendment, that forbids the release of “imagery of Israel that’s at a higher resolution than what’s distributed by non-US companies.”

One comment

Astra defaults on debt agreement

10:25 am

The rocket startup Astra revealed on Friday that it was unable to meet the requirements of one of its investors that it maintain at least $10.5 million in cash reserves, and thus defaulted on that debt agreement.

Astra twice last month failed to meet minimum cash reserve requirements associated with a $12.5 million note issuance to New Jersey investment group High Trail Capital.

The debt raise first required that Astra have “at least $15.0 million of cash and cash equivalents” on hand. That liquidity requirement was adjusted after Astra failed to prove compliance a first time, to require “at least $10.5 million of unrestricted, unencumbered cash and cash equivalents.” Having fallen out of compliance a second time, Astra now owes $8 million on the aggregate principal investment.

Sadly, it appears the end for this company is coming.

11 comments

SpaceX launches 23 Starlink with a 1st stage flying for a record-setting 18th time

5:46 pm

SpaceX today successfully launched 23 Starlink, its Falcon 9 rocket lifting off from Cape Canaveral and using a first stage flying for a record-setting 18th time.

The first stage landed successfully on its drone ship in the Atlantic.

The leaders in the 2023 launch race:

79 SpaceX
50 China
14 Russia
7 Rocket Lab
7 India

American private enterprise now leads China 91 to 50 in successful launches, and the entire world combined 91 to 79. SpaceX by itself is once again tied the rest of the world (excluding American companies) 79 to 79.

4 comments

November 3, 2023 Quick space links

3:08 pm

Courtesy of BtB’s stringer Jay.

 

 

  • Bezos is abandoning Seattle and moving to Florida

    • He says he wants to be closer to both his family and his Cape Canaveral space facilities in Florida, which as he says is “shifting increasingly to Cape Canaveral.” He also likely decided to get out because of a new state tax that will steal $70 million from him for every stock sale of $1 billion.

 

 

 

 

3 comments

Ingenuity completes very short 65th flight

2:31 pm

Overview map
Click for interactive map.

Ingenuity yesterday completed a very short 48 second flight that shifted its position only slightly to the west, by about 23 feet. The distance, time, and highest elevation (33 feet) matched the flight plan exactly.

The green dot on the overview map above indicates its present position, with the blue dot marking Perseverance’s location. This particular flight was so short that it actually fits entirely within that green dot. Furthermore, the helicopter’s next flight, scheduled for today as well, is intended to also only reposition the helicopter, but even less so, moving only two feet or so sideways while rising only ten feet.

It appears the engineering team is preparing the helicopter for the upcoming solar conjunction, when the Sun will be between the Earth and Mars and no communications will be possible for several weeks. Such conjunctions occur about every two years, with this one beginning on November 6th and lasting until November 29th. Getting the helicopter in the right spot during that down time will increase the chances for regaining communications afterward. Since Perseverance acts as a relay station, Ingenuity must get placed in a spot where there is a direct line of communications, blocked by no objects or intevening rise in land.

Note that all the Martian rovers and orbiters are preparing for conjunction right now.

Leave a comment

Mars geology that only makes sense by digging deeper

1:54 pm

Not-so baffling Martian geology
Click for original image.

Today’s cool image is a perfect example of why nothing in science research should ever be taken at face value, without digging a bit deeper. The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on October 5, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

First an important technical point. Though the electronics unit for one of the camera’s color filters is still not working — causing a blank strip down the center of all black & white images, the camera team has gotten around this problem by inserting in that strip other color filter data, thus creating a complete image as you see to the right. This work-around means that MRO’s capabilities, though showing signs of age, will continue almost as good as before.

As for the image itself, when I first looked at it, I was baffled by the striking contrast between the mottled and rough ground in the lower left, and the almost featureless and smooth terrain everywhere else. Why this sudden transition? What could cause it? That inexplicable contrast demanded I post it as a cool image.
» Read more

One comment

Real pushback: “We won’t hire your bigots!” say 42 law firms to top universities

12:48 pm

A Nazi youth rally, little different than today's pro-Hamas demonstrations
A 1930s Nazi youth rally, little different than
today’s pro-Hamas demonstrations

Bring a gun to a knife fight: In a letter [pdf] sent out on November 1, 2023 to all the major law schools in the country, more than three dozen law firms made it very clear they will not hire students from those schools if action wasn’t taken against the rise of anti-Semitism on those college campuses.

Rather than summarize, I think it worthwhile to let the letter speak for itself:

Over the last several weeks, we have been alarmed at reports of anti-Semitic harassment,
vandalism and assaults on college campuses, including rallies calling for the death of Jews and the elimination of the State of Israel. Such anti-Semitic activities would not be tolerated at any of our firms. We also would not tolerate outside groups engaging in acts of harassment and threats of violence, as has also been occurring on many of your campuses.
» Read more

17 comments

China launches military satellite

12:13 pm

China today successfully launched a military satellite, its Long March 7 rocket lifting off from its coastal Wenchang spaceport.

As this launch was on the coast, the rocket’s lower stages likely landed in the ocean harmlessly.

The leaders in the 2023 launch race:

78 SpaceX
50 China
14 Russia
7 Rocket Lab
7 India

American private enterprise still leads China 90 to 50 in successful launches, and the entire world combined 90 to 79. SpaceX by itself is trails the rest of the world (excluding American companies) 78 to 79.

Hat tip to BtB’s stringer Jay for the link.

Leave a comment

Hubble snaps an ultra-violet view of Jupiter

9:59 am

Jupiter in ultra-violet

Cool image time! Using the Hubble Space Telescope, scientists have taken a false-color ultra-violet image of Jupiter. That picture is to the right, cropped, reduced and sharpened to post here.

This newly released image from the NASA Hubble Space Telescope shows the planet Jupiter in a color composite of ultraviolet wavelengths. Released in honor of Jupiter reaching opposition, which occurs when the planet and the Sun are in opposite sides of the sky, this view of the gas giant planet includes the iconic, massive storm called the “Great Red Spot.” Though the storm appears red to the human eye, in this ultraviolet image it appears darker because high altitude haze particles absorb light at these wavelengths. The reddish, wavy polar hazes are absorbing slightly less of this light due to differences in either particle size, composition, or altitude.

The data used to create this ultraviolet image is part of a Hubble proposal that looked at Jupiter’s stealthy superstorm system. The researchers plan to map deep water clouds using the Hubble data to define 3D cloud structures in Jupiter’s atmosphere.

By comparing this ultra-violet image with Hubble’s optical view as well as Webb’s infrared view, scientists can study Jupiter’s atmosphere much like meteologists study the Earth’s, using multi-wave satellite observations.

Leave a comment

Sierra Space: Tenacity is complete and ready for ground testing

9:50 am

Sierra Space announced yesterday that its reuseable Tenacity cargo freighter, the first of its Dream Chaser mini-shuttles, is now complete and ready shipment to NASA’s test facilities in Ohio for ground testing.

The spacecraft hopefully will fly next year. Though this is four years behind schedule, it signals an important milestone for the company, and suggests its operational pace will pick up afterward. Though its arrival comes very late in ISS’s lifespan, the coming arrival of many private space stations, including Sierra’s own, will likely provide it many customers.

2 comments

Musk: Starlink “has achieved breakeven cash flow”

9:45 am

In a tweet yesterday, Elon Musk revealed that Starlink “has achieved breakeven cash flow,” adding that “Starlink is also now a majority of all active satellites and will have launched a a majority of all satellites cumulatively from Earth by next year.”

This means that SpaceX achieved this goal using only its Falcon 9 rocket. Originally the company thought it had to have Starship to get enough satellites into orbit to operate the constellation. Because of delays in developing Starship (right now mostly caused by red tape in the federal government), the company ramped up the launch pace using just Falcon 9, and apparently got the job done.

The profits from Starlink can now be used to further develop Starship and Superheavy, assuming the federal government ever gets out of the way.

7 comments

Norway inaugurates its Andoya spaceport

9:39 am

Map of Norway showing Andoya

Norway yesterday announced the opening its new Andoya spaceport in the far north of the country, where it hopes will become a hub for the emerging new commercial launch industry.

The location is indicated by the map to the right, in the Arctic and farther north than any other planned spaceport, making it excellent for satellites going into polar orbit.

The launch base, which eventually will have several launch pads, was built by Norwegian public company Andoya Space, on a site which until now has only been used for firing suborbital scientific experiment rockets.

Spectrum, a two-stage craft capable of carrying up to one tonne and developed by the German start-up Isar Aerospace, is scheduled to be the first rocket to be launched from island which is located near the idyllic Lofoten archipelago.

If Norway’s government works better than Great Britain’s in issuing launch permits, this spaceport will steal all business from the UK’s own two spaceports being built in Scotland.

3 comments

Iceland signs Artemis Accords

9:29 am

Though no press announcement was ever released, it appears that Iceland signed the Artemis Accords sometime in October, according to small mention in the the press release announcing the signing of the Netherlands.

The mention was so small I missed it. In fact, so apparently did NASA, as Iceland did not issue its own press release. The U.S. likely found out about the signing through private diplomatic communications.

This brings the total number of nations now part of this American space alliance to thirty-one, as follows: Argentina, Australia, Bahrain, Brazil, Canada, Columbia, Czech Republic, Ecuador, France, Germany, India, Iceland, Israel, Italy, Japan, Luxembourg, Mexico, the Netherlands, New Zealand, Nigeria, Poland, Romania, Rwanda, Saudi Arabia, Singapore, South Korea, Spain, the United Kingdom, the United Arab Emirates, the Ukraine, and the United States.

One comment

Lucy discovers second small asteroid orbiting Dinkinesh

9:15 am

Dinkinesh as seen by Lucy

During its November 1, 2023 fly-by of the asteroid Dinkinesh the asteroid probe Lucy surprisingly discovered that the asteroid was actually a binary, with a second smaller asteroid orbiting it.

The picture to the right, cropped, reduced, and sharpened to post here, was taken by Lucy’s camera within a minute of the probe’s closest approach of 270 miles. The second asteroid is partly blocked by Dinkinesh.

In the weeks prior to the spacecraft’s encounter with Dinkinesh, the Lucy team had wondered if Dinkinesh might be a binary system, given how Lucy’s instruments were seeing the asteroid’s brightness changing with time. The first images from the encounter removed all doubt. Dinkinesh is a close binary. From a preliminary analysis of the first available images, the team estimates that the larger body is approximately 0.5 miles (790 m) at its widest, while the smaller is about 0.15 miles (220 m) in size.

The nature of both asteroids appears to lie between a rubble pile (like Bennu) or a solid smooth rock (like Eros), suggesting we are now beginning to see aspects of the overall evolution of asteroids over time.

So far only a few images from this fly-by have been released. It will take a week for the rest of the data from the fly-by to beamed back to Earth. However, these images prove that the prime purpose of this fly-by was successful, proving that Lucy is operating as planned, able to point, manuever, and obtain its data during such a fly-by. When it arrives in the Trojan asteroids in 2027 it will be able to do its prime mission.

2 comments

November 2, 2023 Quick space links

5:07 pm

Courtesy of BtB’s stringer Jay.

 

 

 

 

6 comments

The goal of Hamas (and its supporters) is to kill all Jews

1:52 pm

Map of Hamas massacres on October 7, 2023

It shouldn’t be necessary to have to spend any time proving the bigoted, Jew-hatred of Hamas, considering the horrible murder of about 1,400 Israeli men, women, children, and babies on October 7, 2023, with many burned alive, decapitated, tortured, and raped. Their actions that day were right out a Nazi handbook, and any sane decent human being should be able to easily see it.

And yet, it sadly is necessary, because that barbaric behavior is now being justified and excused by too many very ignorant people, not just in Gaza and the West Bank but worldwide, even in the most famous colleges in the U.S.

The map to the right is a good first data point. Hamas officials have gone on television and arrogantly claimed “We did not have any intention or decision to kill any civilians.” This lie is proven unambiguously by the map. The red dots indicated the locations of bodies. The black dots those who have been kidnapped. The locations of both illustrate how well planned this Hamas operation was, and its outright intention to kill civilians. These are not military facilities, but Jewish settlements where civilians live. Hamas mapped those locations, and targeted them precisely, including the Re’im music festival, which was a specific event and contained nothing but civilians.

This map, titled “Mapping the Massacres”, is available online, and provides close-ups of the murder maps for each massacre. If go to the link and click on the “Walkthrough” button on the bottom right, it will not only zoom in step-by-step to each massacre, it then provides detailed descriptions of what happened at each location. For example:
» Read more

26 comments

During landing Shenzhou’s single parachute appeared damaged

10:01 am

A closer look at imagery during the descent by parachute of China’s manned Shenzhou capsule, bringing three astronauts back from Tiangong-3 after a five month mission on October 31, 2023, shows that the capsule’s single parachute had a ripped hole.

In some of the footage, a patch of blue sky can be seen through the red-and-white-banded parachute. Inside the capsule were Shenzhou 16 mission commander Jing Haipeng and crewmates Zhu Yangzhu and Gui Haichao — the latter pair returning to Earth after their first mission to space.

Such a sizable hole, which was visible before a white cloud of vented propellant left the Shenzhou capsule, has not been reported during earlier missions. It did not, however, seem to affect operations.

The landing however was very rough, with the capsule tumbling several times after hitting the ground.

Considering that China presently as three astronauts on Tiangong-3 that have to come home in their own Shenzhou capsule, using this same parachute system, finding out what happened seems imperative. Developing its next generation larger capsule, which will return using three parachutes, also appears essential.

Leave a comment

Senate passes bill that gives NASA and Commerce responsibility for removing space junk

9:27 am

The Senate on October 31, 2023 passed a bill that requires NASA to develop several space junk removal projects while giving the Commerce department the responsibility of identifying what space junk needs to be removed.

The central part of the bill would direct NASA to establish an active debris removal program. Tnat includes creating “a demonstration project to make competitive awards for the research, development, and demonstration of technologies leading to the remediation of selected orbital debris.” It would also require NASA to enter into a partnership to fly a demonstration mission to remove debris.

The debris that could be removed by those demonstrations would come from a list developed by the Department of Commerce to identify debris “to improve the safety and sustainability of orbiting satellites and on-orbit activities.” The Department would also lead work on best practices for space traffic coordination. The bill directs the National Space Council to lead an update of the federal government’s Orbital Debris Mitigation Standard Practices.

Though unstated, this bill appears to be a direct slap at the FCC’s effort under the Biden administration to claim the power to regulate space junk, despite its lack of statutory authority to do so. In fact, the Senate underlined that slap in the face by also passing a bill that demanded the FCC streamline its regulatory overreach rather than expand it.

Neither bill is law yet, and it is unclear whether the House will agree to either. The Senate has sent the space junk bill to the House previously without passage.

3 comments

A seasonal map of the cloudy parts of Mars

9:10 am

Seasonal map of the cloudy parts of Mars
Click for original image.

Though Mars’ very thin atmosphere (1/thousandth that of Earth) is generally clear, it does have clouds that come and go. A project begun in 2022 using citizen scientists to identify these clouds and the seasons they appear the most, dubbed Cloudspotting on Mars, has now published its first paper, available here.

The graph to the left, Figure 9 in the paper, shows two seasonal Mars maps, one indicating the daytime seasonal frequency of clouds and the other their nightime frequency. From the paper:

The seasonal evolution of all clouds as a function of latitude for both daytime and nighttime are shown in Fig. 9. During the clear season until [mid-summer in the northern hemisphere] … there are several regions where clouds occur frequently: in the equatorial region (annotated as 1), at mid-latitudes (2), in the southern polar region (3), and to a lesser extent in the northern polar region [at the start of summer]. From [late fall to mid-autumn in the north], daytime clouds occur primarily at mid-latitudes, but are observed at nearly all latitudes between 70°S and 60°N (4). At night, there is one broad population from 30°S to 30°N (clouds are more frequent in the equatorial region at night), but [in autumn], clouds occur frequently between 30°N and 50°N as well. [In mid-spring] the number of observed nighttime clouds increases in the southern hemisphere, especially near 50°S. There is a strong decrease in the number of peaks just before [the late northern autumn and the late southern sping] at nearly all latitudes except around 50°S and 20°N at night. [Once northern winter arrives], clouds are observed between about 60°S and 60°N as well as both polar regions, although nighttime clouds between 0°N and 30°N occur relatively less frequently.

The low-latitude clouds during the clear season (1), which are observed more frequently at night, occur at high altitudes, 65–80 km during the day and 55–70 km at night; this is the aphelion equatorial mesospheric cloud population studied in depth by Slipski et al. (2022) and in which previous observations have spectrally confirmed CO2-ice.

Martian seasons

The bracketed words indicating seasons above replace the longitudal numbers the scientists use to indicate the seasons, and are used on these two graphs. The figure to the right shows what the longitude numbers represent in the graphs’ X-axis.

The project continues if any of my readers want to join in.

Leave a comment

Space Force awards SpaceX and ULA new launch contracts worth $2.5 billion

8:37 am

Space Force yesterday awarded both SpaceX and ULA new launch contracts worth $2.5 billion and totaling 21 launches over the next two to three years.

The final batch of assignments were split almost evenly, according to Col. Doug Pentecost, the deputy program executive officer of the Space Force’s Space Systems Command. ULA received 11 missions, valued at $1.3 billion, and SpaceX received 10 missions, valued at $1.23 billion.

Space Systems Command said the missions are scheduled to launch over the next two to three years. ULA, a joint venture of Boeing and Lockheed Martin, will use its soon-to-debut Vulcan rocket for the 11 missions, while SpaceX will fly seven missions with its Falcon 9 rocket and three missions with its Falcon Heavy rocket.

For SpaceX this award is no surprise. The ULA contract is more puzzling. Supposedly the Space Force was not going to award any launch contracts for ULA’s new Vulcan rocket until it successfully launched twice and was certified by the military as operational. Yet, it has now awarded ULA this contract for Vulcan launches. Has the military awarded the contract on a contingency basis? What happens if Vulcan has a failure on one of its first two launches?

The Space Force’s present arrangement limits bidding for launches to just these two companies. If Vulcan fails will it open bidding to other companies, or will it transfer launches to SpaceX?

7 comments

The Netherlands signs Artemis Accords

8:26 am

Confirming what it announced in early October, the Netherlands yesterday officially signed the Artemis Accords, becoming the thirtieth nations to join.

The full list of signatories to the Artemis Accords is now as follows: Argentina, Australia, Bahrain, Brazil, Canada, Columbia, Czech Republic, Ecuador, France, Germany, India, Israel, Italy, Japan, Luxembourg, Mexico, the Netherlands, New Zealand, Nigeria, Poland, Romania, Rwanda, Saudi Arabia, Singapore, South Korea, Spain, the United Kingdom, the United Arab Emirates, the Ukraine, and the United States.

We now have the rough outline of the national alliances that will compete with each other in space. On one hand are the nations above, generally from the west with a larger focus on private enterprise and ownership. On the other hand are the authoritarian nations, led by China and Russia with a few failed communist nations like Venezuela.

One comment

Sunspot update: October activity drops almost to predicted levels

3:55 pm

NOAA today posted its updated monthly graph tracking the number of sunspots on the Sun’s Earth-facing hemisphere. As I do every month, I have posted this graph below, with several additional details to provide some larger context.

In October the sunspot count dropped so much from the activity in September that the total count was for the first time since the middle of 2021 actually very close to the predicted numbers first put forth by NOAA’s solar science panel in April 2020.

» Read more

2 comments

October 31, 2023 Zimmerman/Space Show podcast

3:19 pm

The podcast of my appearance last night on the Space Show with David Livingston is now available. You can download it here.

The discussion almost entirely centered on the delays getting government approvals for the next Starship/Superheavy test launch. The best part I think was the conversation between myself and Charles Lurio, publisher of the very well-respected space newsletter The Lurio Report.

Also, I think one of my regular readers and commenters here at BtB called in with some good questions, but I am not sure. If so, please confirm in the comments below.

2 comments
1 … 99 100 101 102 103 … 1,076