Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

SpaceX’s Falcon 9 launches 21 second generation Starlink satellites

4:33 pm

SpaceX today successfully launched 21 second generation Starlink satellites, dubbed V2-minis because they are smaller than the full version that will be launched on Starship.

The Falcon 9 rocket used a first stage flying on its third flight. It successfully landed on a drone ship in the Atlantic. The fairings were completing their second flight.

The 2023 launch race:

13 SpaceX
7 China
3 Russia
1 Rocket Lab
1 Japan
1 India

American private enterprise now leads China 14 to 7 in the national rankings, and the entire world combined 14 to 12. SpaceX alone leads the entire world combined 13 to 12.

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Drilling success for Curiosity in the marker layer?

11:37 am

Curiosity's view ahead, February 25, 2023
Click for full panorama.

The fifth drill hole in the marker band
Click for original image.

It appears from the most recent image sent back from Curiosity today of its February 25, 2023 attempt to drill into the marker layer on Mount Sharp — the fifth such attempt — the rover finally succeeded in getting deep enough to collect sufficient sample material for analysis.

That image is to the right, cropped, reduced, and sharpened to post here. Note that it is not yet confirmed from the science team that this drill attempt was deep enough. What makes this particular drilling attempt intriguing is how the many thin layers of the marker layer responded to the stress of the drill. The top layer cracked like a plate and separated from the adjacent lower layer during drilling. It apparently was hard enough to retain most of its structure, and rather than crumble the drill stresses caused a large section to break away and lift off.

The panorama above, cropped and reduced to post here, was taken the same day from this location, produced from 37 photos taken by the rover’s right navigation camera. The cropped section above looks forward at what I previously labeled “a Martian hill of pillows.” The overview map below shows the context of this panorama.
» Read more

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Galaxies afloat in space

10:00 am

Galaxies afloat in space
Click for original image.

Cool image time! The picture to the right, cropped and reduced to post here, was taken by the Hubble Space Telescope and released today. It is part of a survey project studying what the press release calls “jellyfish galaxies,” spiral galaxies that have long extended arms.

As jellyfish galaxies move through intergalactic space they are slowly stripped of gas, which trails behind the galaxy in tendrils illuminated by clumps of star formation. These blue tendrils are visible drifting below the core of this galaxy, and give it its jellyfish-like appearance. This particular jellyfish galaxy โ€” known as JO201 โ€” lies in the constellation Cetus, which is named after a sea monster from ancient Greek mythology. This sea-monster-themed constellation adds to the nautical theme of this image.

On the lower left is what the press release calls an elliptical galaxy, probably because it has no obvious arms. It is however shaped more like a spiral galaxy, since ellipticals tend to be spherical. If you look close you will also notice at least five-plus other galaxies in this picture, all smaller either because they are much farther away or are simply much smaller.

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New company aims at providing floating ocean-going spaceports for rocket companies

9:29 am

A new startup, The Spaceport Company, is building a floating ocean-going spaceport for smallsat rocket companies, with the company’s long term goal to provide a range of floating spaceports for rockets of all sizes.

The Spaceport Company is planning to demonstrate a sea-based launch platform in May, conducting four sounding rocket launches from a modified ship in the Gulf of Mexico. โ€œThat will help us prove out our logistical, operational and regulatory procedures,โ€ said Tom Marotta, founder and chief executive of the company, during a panel at the SpaceCom conference Feb. 23.

Those tests will be a precursor to developing a full-scale sea-based platform, based on a ship design called a liftboat. That ship can sail to a location and lower legs to anchor itself on the seafloor. The boat can then lift itself out of the water and serve [as] a launch platform.

That first orbital platform would provide launch services for smallsat rockets capable of launching up to one ton, and if the company’s suborbital test launches go well and further investment capital arrives, could be operational by 2025.

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Astroscale raises $76 million in private investment capital from Mitsubishi, space tourist Maezawa, and others

9:20 am

The Japanese startup Astroscale, which is focused on removing orbital space junk and robotic satellite repair, has raised $76 million in private investment capital, bringing the total it has raised from private sources to $376 million.

Astroscale Holdings Inc. (“Astroscale”), the market leader in satellite servicing and long-term sustainability across all orbits, has closed a Series G round with more than U.S. $76 million in funding from new investors Mitsubishi Electric, Yusaku Maezawa, Mitsubishi UFJ Bank, Mitsubishi Corporation, Development Bank of Japan, and FEL Corporation.

The investors are of interest. Billionaire Maezawa, who has already flown to ISS as a tourist and has purchased a lunar mission on SpaceX’s Starship, contributed $23 million of the $76 million. Mitsubishi in turn has contributed at least $25 million. Both suggest Astroscale is now on very solid financial ground.

It also appears that the big players in Japan see Astroscale’s business plan as viable and expected to be profitable.

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Manned Endeavour launch tonight on Falcon 9 scrubbed at T-2:12

12:05 am

UPDATE: New launch date, still tentative pending investigation into the technical issue that forced tonight’s scrub, is now March 2, 2023, at 12:32 am Eastern.

The fourth manned launch of SpaceX’s Endeavour Dragon capsule, carrying four astronauts, was scrubbed tonight at T-2:12 because of an issue with ground ignition system of the rocket. As of posting no additional details had been released, as the launch team was in the process of standing down, unloading the fuel from the rocket in preparation for getting the astronauts out of the capsule safely.

Assuming the issue can be fixed quickly, there is another launch opportunity tomorrow, February 28, at 1:22 am (Eastern). For SpaceX a launch scrub for technical reasons has become remarkably rare. In fact, the only other scrub since 2020 for technical reasons took place in July 2022. During that time the company successfully launched more than 100 times, thus getting off the ground as scheduled about 99% of the time, excluding weather delays.

While the Endeavour capsule will be making its fourth flight, when this launch finally takes place the rocket’s first stage is a new stage and will be making its first flight. This has also become a relatively rare event for SpaceX. In 2022, of the company’s 61 launches, only three used new first stages. So far this year this launch will be the second new stage to fly, out of the thirteen launches so far.

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IBEX in safe mode

11:38 am

On February 18, 2023, NASA’s Interstellar Boundary Explorer (IBEX) went into what the engineers have dubbed “contingency mode”, which seems to be a variation of safe mode, due to a computer issue that is preventing the spacecraft from accepting commands.

While fight [sic] computer resets have happened before, this time the team lost the ability to command the spacecraft during the subsequent reset recovery. The team also was unsuccessful in regaining command capability by resetting ground systems hardware and software.

Flight software still is running, and the spacecraft systems appear to be functional. However, while uplink signals are reaching the spacecraft, commands are not processing. If the mission teamโ€™s efforts to find and remedy the loss of command capability remain unsuccessful, IBEX will perform an autonomous reset and power cycle on March 4.

IBEX was designed to study the boundary between the interstellar space and the solar system, and do it somehow from Earth orbit.

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February 24, 2023 Quick space links

5:25 pm

Courtesy of BtB’s stringer Jay.

 

 

 

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Meandering ridges in Greg Crater

12:11 pm

Meandering ridges in Greg Crater
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on November 29, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the scientists label “curved ridges.”

These might be inverted channels, the beds on which either water or ice flowed, compacting it down so that it became very resistant to erosion, and thus remains when the surrounding terrain was worn away. However, none of them seem to follow any grade. A more likely explanation is that these are ancient moraines, the debris pile pushed ahead of a glacier and then left behind when the glacier goes away.

The location is the reason I favor this explanation.
» Read more

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Puerto Rico’s Ports Authority is looking for an operator to run the island’s own spaceport

10:09 am

Ceiba spaceport map
The arrow points to the city of Ceiba

Puerto Rico’s Ports Authority has now issued a call for proposals from potential operators of the spaceport the authority wishes built at an airport in the town of Ceiba on the island’s eastern tip.

The developer โ€” which would operate the Spaceport for several years, depending on the negotiation โ€” would design and build the infrastructure needed for horizontal launches at JAT, using private capital, equity and investment.

…โ€œVertical launches in Puerto Rico are challenging, considering the population density, among others. However, we want to do a feasibility study for vertical launches in Puerto Rico, with an emphasis on the use of barges and launches in high seas,โ€ the agency stated in the RFP.

Note that the first goal would be to make the airport usable for rocket companies that use an airplane for their first stage, such as Virgin Orbit and Northrop Grumman. The next step would be figure out where a vertical launchpad could be safely and practically established.

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Many carbon-based molecules identified in Ryugu samples

9:53 am

Researchers in Japan, Europe, and the U.S. have now identified many carbon-based molecules in the Ryugu samples brought back to Earth by Japan’s Hayabusa-2 asteroid probe. From their paper, published in Science yesterday:

We identified numerous organic molecules in the Ryugu samples. Mass spectroscopy detected hundreds of thousands of ion signals, which we assigned to ~20,000 elementary compositions consisting of carbon, hydrogen, nitrogen, oxygen, and/or sulfur. Fifteen amino acids, including glycine, alanine, and ฮฑ-aminobutyric acid, were identified. These were present as racemic mixtures (equal right- and left-handed abundances), consistent with an abiotic origin. Aliphatic amines (such as methylamine) and carboxylic acids (such as acetic acid) were also detected, likely retained on Ryugu as organic salts.

The presence of aromatic hydrocarbons, including alkylbenzenes, fluoranthene, and pyrene, implies hydrothermal processing on Ryuguโ€™s parent body and/or presolar synthesis in the interstellar medium. Nitrogen-containing heterocyclic compounds were identified as their alkylated homologs, which could have been synthesized from simple aldehydes and ammonia. In situ analysis of a grain surface showed heterogeneous spatial distribution of alkylated homologs of nitrogen- and/or oxygen-containing compounds.

The large number of carbon-based molecules is not unlike data from similar carbonaceous chondrite meteorites, though the differences appear to suggest Ryugu experienced chemical processes in connection with water during its lifetime.

Note for clarity: Organic molecules are not life. This is a term scientists use for any carbon-based molecule.

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