Category: Behind The Black

Taking the day off…

12:19 pm

Yesterday I came down with a head cold, which is draining me of energy. I am going to take a few hours off to take a nap. I should post some more later in the day but don’t expect much.

A sidenote: When I mentioned I had a head cold to someone, the first question that person asked was “Covid?” I laughed and responded, “Who cares? Covid has been nothing more than a cold since around 2021.”

This obsession with Covid has got to stop. From a infectious disease perspective the only valuable thing it taught us is that every new and harsh flu strain that comes through eventually mutates downward utnil it is nothing more than the common cold. Covid did exactly that, no matter how much the Chicken Littles of the world tried to claim otherwise.

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Boeing considering selling its space division

11:55 am

According a Wall Street Journal exclusive today (behind a paywall), the company is now exploring the possibility of selling off its space division.

The NASA business that Boeing is exploring a sale of includes the troubled Starliner space vehicle and operations that support the International Space Station, but excludes the unit building NASA’s Space Launch System, the newspaper reported.

The U.S. planemaker’s shares rose 0.6% in afternoon trading.

Boeing’s space division includes its Starliner capsule and its work on NASA’s SLS rocket, as well as building many of the modules on ISS and operating it for NASA.

If this is so, it appears the new CEO, Kelly Ortberg, has decided that in order to get the company back on track it needs to focus on Boeng’s first and central business, building airplanes. Space is a distraction that is not helping the company bottom line right now in any way. Furthermore, NASA in 2020 told Boeing it would not entertain any new project bids from the company because its past bids were so poorly conceived. That decision remains in effect now, four years later. Since then Boeing has only have gotten a renewal contract to build more SLS rockets, plus a contract to develop a new airplane wing, but little else.

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Using spectroscopic data, astronomers create 3D map of ancient supernova remnant

10:55 am

Supernova 1181
Click for original image.

Astronomers have now createdsdft a 3D map of the remnant formed by a supernova that occurred in 1181, using detailed spectroscopic data to determing which remnant filaments are moving towards us and which are moving away.

The picture to the right is from figure 1 of their paper, and shows how the filaments radiate out from the center in straight lines, something that is unusual for such remnants. It was taken in 2023 by a ground-based telescope at Kitt Peak in Hawaii. From simple optical data it is impossible however to determine which filaments are in the rear, expanding away from us, and which are in the front, expanding towards us.

To probe the three-dimensional structure of the supernova remnant, the astronomers turned to KCWI, an instrument that can capture multiwavelength, or spectral, information for every pixel in an image. This is like breaking apart the light captured in every pixel into a rainbow of colors. The spectral information enabled the team to measure the motions of the filaments poking out from the center of the explosion and ultimately create a 3D map of the structure. The filament material that is flying toward us shifted toward the blue higher-energy portion end of the visible spectrum (blue-shifted), while light from material moving away from us shifted toward the red end of the spectrum (red-shifted).

…The results showed that the filament material in the supernova is flying outward from the site of the explosion at approximately 1,000 kilometers per second. “We find the material in the filaments is expanding ballistically,” says Cunningham. “This means that the material has not been slowed down nor sped up since the explosion. From the measured velocities, looking back in time, you can pinpoint the explosion to almost exactly the year 1181.”

The 3D information also revealed a large cavity inside the spindly, spherical structure in addition to some evidence that the supernova explosion of 1181 occurred asymmetrically.

Using this data, they were able to create that 3D map, shown below in a coarse animation video.
» Read more

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Sutherland spaceport submits another revised plan to local council

10:41 am

Proposed spaceports surrounding Norwegian Sea
Proposed spaceports surrounding Norwegian Sea.

We’re from the government and we are here to help you! The long-delayed proposed Sutherland spaceport on the north coast of Scotland has now submitted another revised plan to its local Highlands council for approval.

The amended plans for Sutherland Spaceport include a smaller launch pad and launch services facility, and realigning an access road to avoid an area of deep peat. Highland Council planners said the changes would mean reducing the amount of peat that would have to be excavated by more than half. The soil is seen as important because it absorbs CO2.

Highland councillors meeting next week have been asked to approve the amendments. In a report, officials said the amount of peat to be dug up could be cut from 24,046 cubic metres to 9,895 cubic metres.

This is the second time the spaceport has had to submit revised plans to this council. It did so in December 2023, but apparently the council was not satisfied.

Meanwhile Sutherland’s main launch customer, Orbex, has still not gotten its launch licence from the UK’s Civil Aviation Authority, first applied for in February 2022. Orbex, which has a fifty year lease at Sutherland and has built its rocket factory nearby, had planned to do its first test launch of its Prime rocket two years ago. Didn’t happen.

Adding to these bureaucratic delays, Anders Holch Povlsen, a local billionaire — who is an investor in the Saxaford spaceport on the Shetland Islands — in July 2024 filed what appeared to be an absurd harrasment lawsuit against Sutherland, and this was the second time he had done so.

I think Orbex picked the wrong spaceport horse in this race, and is likely going to be killed by this red tape and opposition.

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The uncertainty of science: New research suggests first image in ’22 of Milky Way’s central black hole is likely not accurate

10:25 am

Sagittarius A*
The original interpretation. Click for full image.

The new interpretaion
The new asymmetrical interpretation. Click for original image.

Surprise, surprise! A new analysis of the data behind the 2022 false-color radio image of the supermassive black hole at the center of the Milky Way, posted to the right, suggests that image was not accurately interpreted from the data.

Astronomers led by the National Astronomical Observatory of Japan (NAOJ) say their analysis points at Sagittarius A* having an elongated accretion disk, as opposed to the ring-like “doughnut” image released in 2022 by an international team called the Event Horizon Telescope (EHT) collaboration.

The EHT image shows a central dark region where the hole resides, circled by the light coming from super-heated gas accelerated by immense gravitational forces.

But a new paper published today in Monthly Notices of the Royal Astronomical Society suggests that part of this appearance may actually be an artefact because of the way the image was put together. … Assistant professor Miyoshi Makoto, of the NAOJ, said: “Our image is slightly elongated in the east-west direction, and the eastern half is brighter than the western half. We think this appearance means the accretion disk surrounding the black hole is rotating at about 60 per cent of the speed of light.” He added: “Why, then, did the ring-like image emerge? Well, no telescope can capture an astronomical image perfectly. We hypothesise that the ring image resulted from errors during EHT’s imaging analysis and that part of it was an artefact, rather than the actual astronomical structure.”

It must be noted that this false color radio image was assembled from eight different radio telescopes across the globe, and to bring the data together required a great deal of massaging. While most astronomers appear to favor the top picture, it is just as likely that the bottom picture is a better representation. Either way, both must be considered in any future studies of Sagittarius A*’s environment and structure.

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Four astronauts complete 7-month mission and return to Earth

9:54 am

In the early hours of the morning today SpaceX’s Endeavour capsule safely splashed down in the Gulf of Mexico near Pensacola, Florida, bringing three Americans and one Russian back from ISS after seven months in orbit.

After launching March 3 on a SpaceX Falcon 9 rocket from NASA’s Kennedy Space Center in Florida, NASA astronauts Matthew Dominick, Michael Barratt, and Jeanette Epps, as well as Roscosmos cosmonaut Alexander Grebenkin, spent 232 days aboard the space station.

Recovery teams from NASA and SpaceX quickly secured the spacecraft and assisted the astronauts during exit. The crew now will head to NASA’s Johnson Space Center in Houston, while the Dragon spacecraft will return to SpaceX facilities at Cape Canaveral Space Force Station in Florida for inspection and refurbishment for future missions.

This completed Endeavour’s fifth flight to ISS, ranging in length from 17 to 235 days in length.

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SpaceX launches reconnaissance satellite for NRO

8:41 pm

SpaceX earlier today successfully launched a reconnaissance satellite for the National Reconnaissance Office (NRO), its Falcon 9 rocket lifting off from Vandenberg in California.

The first stage completed its 21st flight, landing on a drone ship in the Pacific.

The leaders in the 2024 launch race:

104 SpaceX
48 China
11 Russia
11 Rocket Lab

American private enterprise now leads the rest of the world combined in successful launches 121 to 71, while SpaceX by itself now leads the entire world, including American companies, 104 to 88.

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October 24, 2024 Quick space links

3:20 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

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But will loyal Democrats actually abandon their beloved party? History says no

2:57 pm

The Democratic Party: Given decades of blind loyalty by its supporters
The Democratic Party: Decades of blind loyalty
by its supporters

This week the publication Issues and Insights had a poll taken of registered Democrats to garner some idea of their overall opinion of the Democratic Party’s sudden back-room deal to dump Joe Biden as presidential candidate and replace him with Kamala Harris. The poll asked whether those polled agreed or disagreed with these three statements:

  • The process the Democratic Party used to select its nominee for President did not yield the strongest candidate.
  • The process the Democratic Party used to select Kamala Harris as its nominee was undemocratic.
  • I lost significant faith in the Democratic Party because it did not disclose Biden’s health issues during the primary process.

For Democratic Party politicians, the results should be disheartening at best. A significant majority of the 1,240 registered Democrats polled agreed with all three statements, with 58% agreeing strongly or somewhat with the first statement, 52% agreeing strongly or somewhat with the second statement, and 54% agreeing strongly or somewhat with the third statement. As noted by Scott Pinsker of PJMedia in analyzing the results:
» Read more

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SpaceX rolls out the next Superheavy for sixth test orbital launch

9:59 am

SpaceX in a tweet on October 22, 2024 announced the roll out to the launch tower of the next Superheavy to be used in the sixth orbital test flight, only nine days after that launch tower had successfully caught a Superheavy at the end of the fifth orbital test flight.

Though no launch date has been announced, the company is clearly wants to do it soon. Though its present launch license allows it go when ready, it remains unclear whether it will get that approval from the FAA when requested. FAA upper management has repeatedly indicated a desire to delay its approvals to SpaceX, and until there is a change in the White House — thus forcing a change in that FAA upper management — there is no reason to expect the agency to change its behavior.

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Spaceport startup SUAS Aerospace signs deal to launch small suborbital rocket from west coast of Ireland

9:49 am

SUAS's proposed spaceport plan
Click for original image.

The Irish spaceport startup SUAS Aerospace has now signed a partnership deal with the Netherlands rocket startup T-Minus Engineering to launch a small suborbital rocket from west coast of Ireland in order to demonstrate the viability of Ireland as a potential spaceport location.

According to this report, “T-Minus will provide its Dart rocket for the launch. Dart stands at 3.5 metres and is capable of carrying payloads of up to 3.5 kilograms to a maximum altitude of 200 kilometres.”

Though SUAS has raised €5 million in private investment capital to push its project to build two launch sites within Ireland, it has not made it clear the exact locations of these sites, other than indicating it wants to place them at two locations on Ireland’s west coast, as shown by the company graphic to the right. I suspect it does not yet have rights to the land, and its lobbying effort is largely focused on getting government help to obtain those rights, either on public or private land.

For example, its press release does not provide any details on where this suborbital launch will occur. I am not even sure the company knows. It might simply arrange some coastal location, simply to make possible this demonstration launch, even if that place is not the actual location of its proposed spaceport.

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