Tag: engineering

October 25, 2022 Quick space links

5:03 pm

Courtesy of BtB’s stringer Jay.

 

  • Protein crystal experiment to be launched on next Cygnus freighter to ISS

    • The tweet includes a cool picture of a protein crystal. From the experiment’s abstract:

    The Ring Sheared Drop investigation examines the formation and growth of amyloids and fibrils without the complications associated with the solid walls of a container, because in microgravity, surface tension provides containment of the liquid. Fibrous, extracellular protein deposits found in organs and tissues, amyloids are associated with neurodegenerative diseases such as Alzheimer’s. Results could contribute to better understanding of these diseases as well as to development of advanced materials.

    Forgive me if I am skeptical about this work. Protein crystal experiments have been going on on ISS now for more than two decades, without any clarity whether any have actually turned out useful on Earth. When I have seen presentations about them, I have repeatedly wondered if this isn’t more about creating papers and funding, not actual new knowledge that has a useful application.

    If I am wrong I would love to be educated otherwise.

 

1 comment

China’s Long March 5B rocket with new space station module is now at launchpad

10:16 am

China’s Long March 5B rocket had now been rolled out to its launchpad, carrying the new Mengtian module for China’s Tiangong-3 space station.

The launch is presently scheduled for October 31, 2022. Assuming China has not upgraded the engines on the rocket’s core stage, that stage will tumble back to Earth, uncontrolled, sometime in the following week. Since it is large enough to survive re-entry, it will hit the ground, thus threatening every habitable location under its orbital path. By allowing this to happen China violates the Outer Space Treaty, to which it is a signatory.

Nor will this likely be the last time China does this. Though this module completes China’s station, as presently designed, this will not be the last Long March 5B launch. China plans to use it put its Hubble-class space telescope into orbit, as well as other things.

1 comment

Relativity edges closer to first launch

9:59 am

Relativity has begun stacking its Terran-1 rocket with a goal of soon rolling it out to the launchpad for static fire tests.

The launch date itself remains uncertain. Though the company hopes to lift-off before the end of the year, it also has not committed to that goal.

“We are confident in our tech readiness to launch this year, and we’re still marching toward that,” Ellis said. “But there are a few external factors as we’re getting close to the end of the year that could impact the timeline for us. It’s not a guarantee, but it could.”

Those external factors include other spaceport users in Florida, including uncertainty around the mid-November launch of NASA’s Space Launch System rocket, and blackout periods as part of the military’s Holiday Airspace Release Plan. This effectively precludes launches around Thanksgiving, Christmas, and New Year’s Day due to the high volume of airline flights.

Ellis said the company is progressing well toward securing a launch license for “Good Luck Have Fun,” and noted that the Federal Aviation Administration accepted its methodology for debris mitigation as well as its trajectory analysis software.

The article at the link adds some additional details about the company’s plans. This Terran-1 rocket appears to be its equivalent of SpaceX’s Falcon-1. The company plans to quickly replace it with its much larger Terran-R rocket, comparable to the Falcon-9 in power and price. And it already has won $1.2 billion in launch contracts, and hopes to launch within two years.

I wonder if Terran-R will launch before Blue Origin’s much touted but repeatedly delayed New Glenn rocket. The article itself appears to think so, since it focuses entirely on the competition between SpaceX and Relativity, as if Blue Origin and New Glenn do not even exist.

5 comments

ISS dodges space junk from Russia’s November 2021 anti-satellite test

9:46 am

In order for ISS to avoid one of the approximately 585 pieces of space junk still in orbit that were produced when Russia destroyed its defunct Cosmos 1408 satellite in a November 2021 anti-satellite test, engineers fired the engines of a docked Progress freighter yesterday for just over five minutes.

Without the burn the debris would have flown within three miles of the station, too close for comfort or anyone’s margin of error.

According to a report in September, of these 585 pieces, most will burn up in the atmosphere by ’25, with only 38 pieces left afterward to pose a threat to other operating satellites and manned spacecraft.

5 comments

Researchers figure out how to make the Starlink constellation a GPS-type constellation

9:37 am

Researchers working independent from SpaceX and without any of the company’s proprietary data, have found a way to turn the Starlink internet constellation — now about 3,000 satellites strong — into a method of pinpointing one’s location, thus making it an alternative to GPS-type satellites.

To be clear, no one is accessing Starlink user data here. The sync sequences are just strings of timings and other data that the machines use to stay in touch — the payload data is entirely separate.

In the paper, due to the fact that the signal was being targeted at an actual Starlink user terminal, the location had to be for that terminal too, and they were able to get it within 30 meters. Not better than GPS, obviously, but it could be quicker and eventually more accurate if SpaceX were to give the project its blessing.

A software update that slightly adjusts how the satellites send their signals and a bit of data on correcting for variance between their clocks, and Humphreys suggests Starlink transmissions could be used to locate oneself to within a meter.

You can read the paper here [pdf].

It seems a no-brainer that at some point SpaceX management will recognize the money they can make from this extra capability, and will figure out the best way to produce and sell handheld units. It also appears that there will be profit in allowing others to also tag on.

4 comments

Virgin Orbit gets UK marine license for its Cornwall launch

9:26 am

Virgin Orbit has been issued its marine license from the United Kingdom for its planned October 29, 2022 launch from Cornwall, the first such orbital launch from the British Isles.

Virgin Orbit proposes to conduct a maximum of one launch in 2022 and approximately two launches per year over the next 8 years (January 2023-December 2030).

The licence issued by MMO covers the 2022 launch, the first of its kind in the UK. As there is material to be deposited into the sea that will be loaded in the UK, the activity requires a marine licence from MMO, as required by The Marine and Coastal Access Act 2009.

The ever-growing reach of government bureaucracy is worldwide. Though Virgin Orbit’s airplane, carrying the LauncherOne rocket and its seven smallsats, is taking off from Cornwall, the release of that rocket will not occur until it is over the Atlantic, with the expendable first stage falling into the ocean west of Portugal. Yet somehow the company must get permission of these UK bureaucrats — as well as American ones — to fly.

1 comment

A hole in space

8:48 am

A hole in space
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken by the Hubble Space Telescope and was released today as its picture of the week. From the caption:

This peculiar portrait from the NASA/ESA Hubble Space Telescope showcases NGC 1999, a reflection nebula in the constellation Orion. NGC 1999 is around 1350 light-years from Earth and lies near to the Orion Nebula, the closest region of massive star formation to Earth. NGC 1999 itself is a relic of recent star formation — it is composed of detritus left over from the formation of a newborn star.

Just like fog curling around a street lamp, reflection nebulae like NGC 1999 only shine because of the light from an embedded source. In the case of NGC 1999, this source is the aforementioned newborn star V380 Orionis which is visible at the centre of this image. The most notable aspect of NGC 1999’s appearance, however, is the conspicuous hole in its centre, which resembles an inky-black keyhole of cosmic proportions.

Once astronomers thought the black area was caused by dust, blocking the light. Now, based on a lot of new data from multiple ground- and space-based telescopes, they know that it actually is a black empty void. Why it exists however is not yet understood.

3 comments

Spanish high altitude tourist balloon company prepares for first test flight

9:07 pm

The Spanish high altitude tourist balloon company HALO is preparing to do the first test flight in December from India, with the second test flight planned for the first quarter of 2023 from Spain.

The Madrid-based company will take tourists to the edge of space in a capsule attached to a balloon – with prices from £87,000 to £174,000 (100,000 to 200,000 Euros).

The final capsule design will have capacity for 8 passengers and a pilot and feature panoramic windows which allow 360-degree views of the Earth at an altitude of up to 25 miles.

…The first commercial flights are expected to start in 2025 and the company plans to operate in four continents, making a total of 400 commercial trips with 3,000 passengers per year from 2029.

This market now appears to have three companies vying for customers, the American companies World View and Space Perspectives, and this Spanish company.

3 comments

OneWeb paid ISRO about $130 million for two GSLV launches

8:56 pm

It appears that OneWeb agreed to pay India’s space agency ISRO about $130 million for two GSLV launches, putting up 36 satellites on each launch.

When asked how much his business would spend to have 72 satellites launched, OneWeb Chairman Sunil Bharti Mittal told reporters in India that it would be more than Rs 1,000 crore.

Rs 1,000 crore translates to about $130 million, which means OneWeb paid about $65 million per launch, which is comparable to SpaceX’s standard Falcon 9 price, before discounts for using previously launched boosters.

It also appears that at present this deal is the only one between ISRO and OneWeb, and that the remaining 576 satellites that OneWeb needs to launch to complete its constellation are still open for others. At present, SpaceX and Relativity have contracts, though it is unclear how many each will launch. I suspect SpaceX will be the majority, since Relativity has not even completed its first test launch. It is also possible that ISRO will get more contracts based on its first launch success.

0 comments

Russia launches 4 satellites with Soyuz-2 rocket from Vostochny

8:06 am

Russia yesterday successfully launched four satellites from its Vostochny spaceport, using its Soyuz-2 rocket.

Three satellites were part of Russia’s data relay satellite constellation, and one was the first test satellite of Russia’s proposed low Earth orbit broadband constellation, comparable to Starlink.

The leaders in the 2022 launch race:

48 SpaceX
45 China
17 Russia
8 Rocket Lab
7 ULA

American private enterprise still leads China 68 to 45 in the national rankings, but trails the world combined 71 to 68.

0 comments

India’s GSLV-Mark3 rocket launches 36 OneWeb satellites

11:58 am

India’s GSLV-Mark3 rocket, its most powerful, has successfully placed 36 OneWeb satellites into orbit. As of this writing, the first 16 of the 36 satellites had successfully deployed.

This was the first international commercial launch for the GSLV rocket, previously used exclusively for Indian launches. It was also the first launch of OneWeb satellites since its deal with Russia was broken off due to the Ukraine war. Though the company had also quickly signed SpaceX to resume launches, I suspect that since half of OneWeb is owned by a major Indian investment company, India was given favored treatment in determining who would launch first.

This was the third successful launch in 2022 for India, the most since that country shut down in 2020 due to its panic over the Wuhan flu.

The leaders in the 2022 launch race remains unchanged:

48 SpaceX
45 China
16 Russia
8 Rocket Lab
7 ULA

American private enterprise still leads China 68 to 45, though it now trails the world combined 70 to 68.

2 comments

NASA buys 3 Orion capsules from Lockheed Martin for $2 billion

10:02 am

Nice work if you can get it! Earlier this week NASA awarded Lockheed Martin a new contract worth $1.99 billion to build three more Orion capsules for its Artemis program.

This order marks the second three missions under the agency’s Orion Production and Operations Contract (OPOC), an indefinite-delivery, indefinite-quantity (IDIQ) contract for up to 12 vehicles. A breakout of these orders includes:

  • 2019: NASA initiates OPOC IDIQ and orders three Orion spacecraft for Artemis missions III-V.
  • 2022: NASA orders three additional Orion spacecraft missions for Artemis VI-VIII for $1.99 billion.
  • In the future: NASA can order an additional six Orion missions.

Under OPOC, Lockheed Martin and NASA have reduced the costs on Orion by 50% per vehicle on Artemis III through Artemis V, compared to vehicles built during the design and development phase. The vehicles built for Artemis VI, VII and VIII will see an additional 30% cost reduction.

Lawdy me! They’ve reduced the price! Lockheed Martin is only charging NASA three-quarters of a billion dollars per capsule on this new contract (after NASA spent about $18 billion for the development of the first six capsules– that’s $3 billion each). And Lockheed Martin will only charge about a half billion per capsule for future capsules! My heart be still.

Meanwhile, SpaceX is designing, testing, building, and will likely launch its reusable Starship manned spacecraft, which could launch about 10 Orion capsules on each launch, for about $10 billion total. Once flying the expected cost per launch will likely be much less than $100 million, with SpaceX claiming it could be as low as $2 million. Even if you add the development cost for these launches, Starship will cost less than Orion by many magnitudes, on its first launch.

I wonder, which is the better bargain? NASA clearly can’t figure it out, and NASA has the smartest, most brilliant people in the universe working for it.

22 comments
1 … 395 396 397 398 399 … 1,354