Category: Behind The Black

Archaeologists discover 35 glass jars at Mount Vernon from 1700s, most containing edible preserved fruits

11:31 am

During an on-going renovation at George Washington’s Mount Vernon home, archaeologists have discovered 35 glass jars from the 1700s, with most containing preserved cherries and berries that appear completely edible.

Of the 35 bottles, 29 are intact and contain perfectly preserved cherries and berries, likely gooseberries or currants. The contents of each bottle have been carefully extracted, are under refrigeration at Mount Vernon, and will undergo scientific analysis. The bottles are slowly drying in the Mount Vernon archaeology lab and will be sent off-site for conservation.

Only a small quantity of the preserved fruits has been analyzed, with the following results:

  • 54 cherry pits and 23 stems have been identified thus far, suggesting that the bottles were likely full of cherries before bottling. Cherry pulp is also present.
  • Microscopy suggests that the cherries may have been harvested by snipping from trees with shears. The stems were neatly cut and purposefully left attached to the fruit before bottling.
  • The cherries likely are of a tart variety, which has a more acidic composition that may have aided in preservation.
  • The cherries are likely candidates for DNA extraction, which could be compared against a database of heirloom varieties to determine the precise species.
  • The pits are undergoing an examination to determine if any are viable for germination.

The last point is most fascinating. Imagine if a new cherry tree could be grown from a pit that was likely picked when George Washington was alive.

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Perseverance looks back at downstream Neretva Vallis

9:58 am

Perseverance looks backwards
Click for full resolution version. Highly recommended!

Cool image time! The panorama above was released today by the science team of the Mars rover Perseverance, created from 56 pictures taken by the rover’s high resolution camera. It looks east, downstream into Neretva Vallis, what is believed to be the ancient riverbed that produced the delta that now exists inside Jezero Crater.

The yellow lines in the overview map below indicate the approximate area shown by the panorama. The blue dot marks where Perseverance was located when it took these pictures on May 17, 2024.

Make sure you look at the full resolution image. Neretva Vallis, the depression in the center of the panorama, is about a quarter-mile wide. The green dot on the map marks Ingenuity’s final landing spot. Though the helicopter is somewhere inside that panorama, it does not appear to be visible as it lies on the far side of one of those dunes.

It is also possible that Ingenuity is visible, but is only a tiny dark dot that makes it hard to identify. In reviewing the high resolution image closely, there is one dot that could be Ingenuity.

Overview map
Click for interactive map.

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Space Force names SpaceX, ULA, and Blue Origin as its launch providers for the next five years

9:14 am

As part of the military’s program for issuing launch contracts, the Space Force yesterday announced that it has chosen SpaceX, ULA, and Blue Origin as its launch providers, allowing them to bid on $5.6 billion worth of planned launched over the next five years.

The NSSL Phase 3 program was structured into two “lanes.” Lane 1 is for less demanding launches to low Earth orbit, while Lane 2 is reserved for heavy lift rockets capable of delivering payloads to nine reference orbits, including some of the most demanding national security missions.

The selection of Blue Origin, SpaceX, and ULA for Lane 1 contracts confirms that no other launch providers met the criteria. Seven bids were submitted, according to the DoD announcement.

The Space Force apparently rejected the other four unnamed companies because they “are still maturing their launch capabilities.” It will allow them to re-submit applications next year, and could approve others for bidding at that time, which is a major change from past policy. Previously the military would name approved companies, but not reconsider others for years, a policy that limited its options and reduced competition. Now it appears it will be doing so frequently, possibly every year, in order to regularly increase the number of companies that can bid on military contracts.

This change is excellent news for the American launch industry, as it means the Pentagon has finally ended its long standing launch policy that played favorites.

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Voyager-1 now returning science data from all working instruments

8:59 am

Engineers have now resumed full science operations on Voyager-1, presently more 15 billion miles from Earth, after computer issues shut the spacecraft down in November 2023.

The team partially resolved the issue in April when they prompted the spacecraft to begin returning engineering data, which includes information about the health and status of the spacecraft. On May 19, the mission team executed the second step of that repair process and beamed a command to the spacecraft to begin returning science data. Two of the four science instruments returned to their normal operating modes immediately. Two other instruments required some additional work, but now, all four are returning usable science data.

The four instruments study plasma waves, magnetic fields, and particles. Voyager 1 and Voyager 2 are the only spacecraft to directly sample interstellar space, which is the region outside the heliosphere — the protective bubble of magnetic fields and solar wind created by the Sun.

Voyager-2 is 12 billion miles from Earth. Both spacecraft are using what are the longest continously running computers ever built, having been turned on 47 years ago. Both spacecraft however do not have much longer to live, despite the recent fixes. The nuclear power source for both no longer provides enough power to run all their instruments, and will run down completely sometime in 2026, as expected, when operations will finally cease.

The spacecraft however will continue to fly out into interstellar space. In 40,000 years or so Voyager-1 will get within 1.6 light years of the star Gliese 445 in the constellation Camelopardalis, while at the same time Voyager 2 will pass 1.7 light-years from the star Ross 248 in the constellation Andromeda.

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Starliner’s return delayed again

8:44 am

NASA today announced that the return of Starliner from ISS, carrying two astronauts, has been delayed again, from June 18th to June 22nd.

It appears engineers want to perform more tests of the the spacecraft’s attitude thrusters before undocking. The failure of some thrusters during docking on June 6th has raised some concerns.

NASA and Boeing teams also prepared plans for Starliner to fire seven of its eight aft-facing thrusters while docked to the station to evaluate thruster performance for the remainder of the mission. Known as a “hot fire test,” the process will see two bursts of the thrusters, totaling about a second, as part of a pathfinder process to evaluate how the spacecraft will perform during future operational missions after being docked to the space station for six months. [emphasis mine]

The highlighted words are kind of a lie. While there is no doubt this test will tell engineers a lot about future operations, such a test, while attached to ISS, would never have been approved had the thrusters all worked as planned during docking. The real reason for this static fire test is to make sure the thrusters will work once undocked.

If they don’t work, there could be a safety issue putting the astronauts in Starliner for return to Earth.

NASA plans a press briefing on June 18th at noon (Eastern) to outline in better detail the situation.

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Arthur Brown & Hamburg Blues Band – I Put A Spell On You

6:01 pm

An evening pause: Performed live 2012. A most eccentric performance.

Hat tip Alec Gimarc, who notes about Brown, “Most notable for a 4-octave voice and performing with a lit device on his head at the time [1969]. … Impressed he is still alive.”

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June 13, 2024 Quick space links

3:51 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.

 

 

 

 

 

 

 

  • Soviet cosmonaut Vyacheslav Zudov dies at 82

    • He commanded Soyuz 23 in 1976, which because of a failed antenna was unable to dock with Salyut-5 and returned to Earth after only two days in space, crashing through the ice on Lake Tengiz and thus becoming the USSR’s first and only manned splashdown.

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Study: Dust removal at Jezero 9x greater than InSight landing area

11:41 am

Figure 2 from the paper
Figure 2 from the paper. Click for original.

Using data from the Mars rover Perseverance, scientists have concluded that dust removal rate in Jezero crater is almost ten times greater than where InSight landed in western Elysium Planitia.

The graph, figure 2 from their paper, illustrates that differents starkly. From their abstract:

Dust removal is almost 10 times larger than at InSight’s location: projections indicate that surfaces at Jezero will be periodically partially cleaned. The estimations of the effect of the accumulated dust as a function of time are encouraging for solar-powered missions to regions with similar amounts of dust lifting, which might be determined from orbital data on where dust storms originate, dust devils or their tracks are found, or seasonal albedo changes are noted.

In other words, it might be practical to send solar powered rovers to different places on Mars, if first research was done to see if the conditions there would regularly clear dust from those panels.

This research confirms what had been implied by the different experiences of landers/rovers in different places on Mars. InSight landed near the equator in a region south of the giant shield volcano Elysium Mons. It only survived four years, with steadily lower energy levels, because no wind or dust devil ever cleared the accumulating dust on its solar panels. Spirit meanwhile landed about 1,500 miles southwest of InSight, yet its power levels were still healthy after more than five years of operations, when those operations ended because the rover could no longer move. The rover Opportunity meanwhile on the other side of the planet lasted more than fourteen years. Both rovers relied on solar power, like InSight, but their solar panels kept getting cleared of dust by wind and dust devils.

It is unclear if this wind research has been done for Europe’s Franklin rover, presently scheduled to land in Oxia Planum in 2028. Franklin will rely on solar panels, and though its nominal mission on the surface is only supposed to last seven months, it is always assumed it will continue until the rover fails.

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June 13, 2024 Zimmerman/Pratt on Texas podcast

10:24 am

Robert Pratt has now posted a new 30-minute interview with me as part of his Pratt on Texas podcast, discussing a whole range of recent blacklist stories, and their larger context within our sadly presently debased culture.

This is part one of a two part interview, the second half of which Pratt plans to post next week.

That podcast is embedded below. It can also be listened to here.
» Read more

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A new lawsuit filed against Elon Musk by former SpaceX employees

10:12 am

Elon Musk, a target for destruction by the left
Elon Musk, a target for destruction

The lawfare won’t stop until morale improves! A new lawsuit has been filed against Elon Musk by eight former SpaceX employees, who now accuse him of sexually harassing them by his sometimes pointed tweets on X, calling those tweets “juvenile, grotesque sexual banter.”

The suit also says Musk’s tweets “had the wholly foreseeable and intentional result of encouraging other employees to engage in similar conduct.”

At SpaceX’s Hawthorne offices, the suit claims, company meetings and employees mimicked Musk’s humor. At meetings, the lawsuit alleges, senior engineers called mechanical parts “chodes” and “schlongs.” A camera that was placed on the bottom of a second-stage Falcon rocket was referred to as the “Upskirt Camera,” and a structure used by astronauts to transfer from SpaceX’s Dragon spacecraft to the International Space Station was called the “Fun Tunnel,” a euphemism for anal sex.

Read the whole article. The complaints are quite hilarious. These employees need to get a life. This is all silly stuff, hardly worth even two nanoseconds of concern.

Unfortunately, these anti-Musk employees do have a life, and it is a very sad one, consumed wholly with destroying Musk, not accomplishing anything worthwhile on their own. These eight former employees are the same ones who were fired after they published an internal letter in SpaceX calling for others in the company to denounce Musk for his tweets. Following their firing they also instigated a National Labor Relations Board (NLRB) suit against Musk, which is presently suspended because SpaceX is claiming the NLRB’s very existence is unconstitutional, and no further action on the complaint will occur until the courts decide on that claim.

This new lawsuit is simply another example of new harassment of Musk by these former employees.

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Astronauts cancel ISS spacewalk due to “spacesuit discomfort issue”

9:55 am

UPDATE: A later update by NASA provided no new information on why the spacewalk was canceled, but did announce a new date for the EVA, June 24th, while adding “The crew members on the station are healthy, and spacesuits are functioning as expected..”

My guess is that one of the astronauts had a personal but minor health issue, that out of privacy concerns NASA cannot reveal.

Original post:
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A spacewalk planned for today was postponed when the two astronauts involved stopped putting on their spacesuits and instead put them aside “due to spacesuit discomfort issue.”

That is all we know at this point. Was the issue a technical problem with the suits? Or was it something related to the astronauts themselves, such as one experienced stomach problems for instance?

No more details are as yet available. The NASA-designed American spacesuits used on spacewalks on ISS are very complicated and prone to technical problems. If that was the cause it could result in a serious delay before the next spacewalk takes place.

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FAA announces schedule for new EIS public meetings on SpaceX’s Starship/Superheavy operations at Cape Canaveral

9:48 am

FAA has now announced the schedule of public meetings in connection with the new environmental impact statement (EIS) it is doing for SpaceX’s proposed Starship/Superheavy operations at Cape Canaveral.

On June 12 and 13, the Federal Aviation Administration (FAA) will host a series of public scoping meetings to inform the public and answer questions about SpaceX’s proposal to launch Starship from Launch Complex 39A (LC-39A). There will also be a virtual meeting on June 17 for those unable to attend in person.

…Among those attending the public hearings will be representative of the Department of the Air Force, the U.S. Space Force, the U.S. Coast Guard, U.S. Fish and Wildlife Service, the Merritt Island National Wildlife Refuge, Canaveral National Seashore and SpaceX.

FAA officials claim this new EIS is required, after doing one only five years ago, because of major changes in SpaceX’s design of Superheavy. For example, it originally planned to land the rocket on a drone ship. Now it wants to catch it with the arms on the launch tower.

The FAA’s argument for this new EIS might sound plausible at first glance, but these regulations were never intended to require new environmental statements every time a project underwent changes. The goal was to make sure the environment would not be impacted by the work, and the first 2019 EIS achieved that. None of the changes SpaceX is proposing change significantly its impact on the local environment.

Moreover, the FAA has three-quarters of a century of empirical data at Cape Canaveral proving that spaceports help the local environment, not hurt it. We know without doubt that none of SpaceX’s launch plans will do harm. The FAA should get out of the way.

Instead, it is sticking its nose into everything. This new EIS is merely mission creep, government bureaucrats both covering their backsides while creating new work that increases their power and justifies bigger budgets for their existence.

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