Tag: spaceflight

Indian satellite startup opens new satellite factory

9:04 am

Capitalism in space: The Indian satellite startup Pixxel has opened a new factory in Bengaluru in southern India, where it expects to ramp up satellite production in the coming years.

Bengaluru-based space data company Pixxel inaugurated its first spacecraft manufacturing facility in Bengaluru on Monday. The new facility holds significance as it targets to launch six satellites this year and 18 more by 2025, further advancing its mission of building a “health monitor” for the planet.
Spread across 30,000 square feet, the facility, at its full capacity, is equipped to handle more than 20 satellites simultaneously that can be turned around within a timeframe of six months, making possible a total of 40 large satellites per year.

The company says that its “…total customer base is divided into three divisions as of now – 40 per cent agriculture, 30 per cent resource companies, and 30 per cent government. Pixxel expects 85 per cent of the revenue to be generated from its commercial side and the rest from the government’s side by 2025.”

For India’s government and its space agency ISRO, Pixxel’s existence signals the sea-change in its policies, similar to what has been happening in the U.S. with NASA. In the past ISRO would have built the satellites. Now it is buying them from the private sector in India. That shift bodes well for India’s space industry, and will likely make it a major player in space in the coming years.

0 comments

SpaceX’s Starlink: More satellites in orbit but fewer close encounters

8:56 am

According to a recent filing with the FCC, SpaceX has found its Starlink constellation had to do fewer collision avoidance maneuvers in the past six months, despite having more satellites in orbit.

In that period, Starlink satellites had to perform 24,410 collision avoidance maneuvers, equivalent to six maneuvers per spacecraft. In the previous reporting period that accounted for the six months leading up to May 31, 2023, the constellation’s satellites had to move 25,299 times. The data suggests that even though the Starlink constellation has grown by about 1,000 spacecraft in the last six months, its satellites made fewer avoidance maneuvers in that period than in the prior half year.

At the moment it is not clear why the number dropped, especially as it had been doubling every six months previously as more satellites were launched. This might signal improved more precise orbital operations, or it could simply be a normal fluctuation. It will require additional reports to get a better sense.

These numbers however should rise as more larger satellites constellations (from Amazon and China) start launching as expected.

2 comments

The divide in a giant Martian lava river

11:29 am

The divide in a giant Martian lava river
Click for original image.

Cool image time! The photo to the right, rotated, cropped, reduced, sharpened, and annotated to post here, was taken on September 24, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

As indicated by the arrows, this is a frozen river of lava on Mars, flowing to the southwest and then splitting into two streams, one to the west and the other to the south. Being a Martian lava flow, when it was liquid it flowed much faster than lava on Earth, almost like a thick water. The flow bored into any high features, such as the two mesas in this picture, and streamlined their shapes, tearing material away as the lava moved by quickly. In the process the lava flow exposed many layers in those mesas, indicating many other previous lava flow events.

The crater in the lower mesa, where the stream splits, appears to have been more resistent to the flow, having been compacted into harder and denser material by the impact itself.
» Read more

0 comments

Elon Musk’s employee update released January 12th

10:19 am

I have embedded below an employee update of the status of all of SpaceX’s projects, given by Elon Musk and released publicly on January 12, 2023. The video has been edited only to remove the many enthusiastic applauses by Musk’s audience of co-workers in order to shorten it.

Though Musk provided a lot of general information about the company’s long term goals with Starlink, Starship, Mars, the Moon, and other topics, these are the most important take-aways relating to its ongoing efforts now:

  • Falcon 9: The company is now upgrading its first stage so that it will be able to fly reused forty times, not twenty. Musk also noted that they have now reused the rocket’s fairings more than 300 times.
  • They are now aiming for about 150 launches in 2024. (It appears now that the biggest obstacle to this goal will be weather, as seen by the weather delays that have stalled Falcon 9 launches this very week.)
  • The Dragon fleet has now spent more days at and flights to ISS than the NASA’s entire shuttle fleet.
  • Starlink: It is a supplement to present phone and internet service, not a replacement, serving remote areas. Its biggest obstacle now however to providing that service is government approvals. The company is blocked by regulators in many places where the service is operational.

On Starship/Superheavy, he revealed these facts:

  • They are planning to double its payload capacity to 200 tons to orbit, twice the Saturn-5.
  • Starship would have made orbit on the second orbital test if it had had a payload. To simulate the weight of payload it had carried extraoxidizer, and when it vented these as it approached orbit it caused problems that activated the self-destruct system.
  • The third orbital test flight will thus almost certainly reach orbit, and will then test engine burns, some refueling technology, payload deployment, and de-orbit procedures.

Musk emphasized that they must be able to fly these tests frequently to get Starship/Superheavy functioning, not just for SpaceX but for NASA’s Artemis program. As he said, “Time is the one true currency.” With each launch they refine the system to make it more reliable and operational. Without those launches they can’t.

He did not mention why launches might not happen frequently, probably because the last thing he needs to do is antagonize the regulators who are slowing him down. I (and other journalists) however are not under that restriction. The biggest obstacle to SpaceX’s success is the red-tape being wound around it by the Biden administration and its love of strict regulation, possibly instigated by its political hostility to Elon Musk as a person.

This government action to stymie freedom must end, and the sooner the better.
» Read more

31 comments

Peregrine still operational but expected to burn up in Earth’s atmosphere

9:23 am

Peregrine flight path as of January 13, 2024
Click for original image.

According to an update yesterday from Astrobotic’s engineering team, the damaged lunar lander is likely to enter the atmosphere burn up when its orbit brings it back to Earth in about a week.

In an update the day before, the company released a graph of the spacecraft’s position in relation to the Earth and Moon, shown to the right. From that update:

Peregrine remains operational at about 238,000 miles from Earth, which means that we have reached lunar distance! As we posted in Update #10, the Moon is not where the spacecraft is now (see graphic). Our original trajectory had us arriving at the Moon on day 15 post launch. Our propellant estimates currently have us running out of fuel before this 15-day mark

The plan had apparently been to circle the Earth twice in this elongated orbit, with the second orbit (after some mid-course corrections) bringing Peregrine close enough to the Moon (after it had moved further in its orbit) to be captured by its sphere of influence. With the loss of fuel due to the leak, the spacecraft doesn’t have the fuel to do any of the required engine burns, including one that would avoid the Earth’s atmosphere upon return.

11 comments

Momentus delays next orbital tug mission due to lack of funds

3:24 pm

The orbital tug startup Momentus has now delayed its next orbital tug mission, scheduled to launch in March on a SpaceX Falcon 9 rocket, due to shortage of cash in the bank.

In a filing with the U.S. Securities and Exchange Commission Jan. 12, Momentus announced it did not plan to fly its next tug, Vigoride-7, on SpaceX’s Transporter-10 rideshare launch in March. The company said it called off the flight because of its “inability to support continuing operations for the expected launch date as a result of the Company’s limited liquidity and cash balance.”

The company said in November that it has signed up seven customers who planned to deploy satellites on Vigoride-7 and two other customers who would operate hosted payloads on the vehicle, but did not identify then. Momentus also intended to fly a rendezvous and proximity operations demonstration on the vehicle as part of its long-term plans for reusable tugs.

Momentus also announced the layoff of 20% of its full-time workforce, on top of the 30% layoffs which occurred in the third quarter in 2023. It appears from the SEC filing that these layoffs are a result of not winning the military contract to build its Tranche-2 constellation, won by Rocket Lab earlier this week.

The company is presently seeking new investment capital.

6 comments

Another look at the increasing regulatory burden impacting commerical space

1:10 pm

Link here. The author does a nice job summarizing the problems now becoming evident as the administration state strives to expand its power and control. Though he gives space to both sides, allowing the defenders of that administrative state to explain why strong regulations are good, he doesn’t bow to those defenders, as do too many modern journalists.

That he quotes me extensively (and has has told me personally that he is a regular reader of Behind the Black), might have something to do with this. He isn’t parroting my positions, however, in this essay, but giving his own perspective.

Definitely worth reading.

6 comments

A cluster of strange terrain in Martian glacier country

12:53 pm

Overview map

A cluster of strange terrain on Mars
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on October 21, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The science team labels this “patterned ground.” I see instead a whole range of inexplicable Martian geological features that, while each has been documented previously, each remains puzzling as to its formation process.

First there is the stucco-like peaks of all sizes on the upper left. This surface really looks like it had been wet plaster covered with Saran Wrap that had its peaks pulled up when that wrap was pulled off quickly.

Then there is brain terrain on the right. Always associated with glacier features on Mars, these convolutions are unique to Mars and as yet not entirely understood.

Next there is the circular arc on the middle left. It appears to be the remains of an impact crater now filled partly, but if so why has its northern rim disappeared so completely?

If you look close at the image above as well as the full image, you will find other mysterious features as well.

The location is the white dot on the overview map above. The rectangle in the inset shows the area covered by this picture, part of the floor of an unnamed eighteen-mile-wide and one-mile deep crater. The glacial material that appears to fill its interior as well as the splash apron that surrounds it all suggest the ground here is impregnated with water ice. Located as it is on the western end of the 2,000-mile-long north mid-latitude strip I dub glacier country — where practically every image shows glacial features — this conclusion is not surprising.

In fact, this photo illustrates well the alieness of Mars. We understand glaciers and ice, but on Mars, with its very cold temperatures, one-third Earth gravity, and thin atmosphere, those glaciers and ice are able to do things that we don’t yet understand. Untangling these geological processes will take decades of work, and likely will not be completed until people can walk the Martian surface and study it up close.

And won’t that be fun?

0 comments

A new plan to send a probe to interstellar object Oumuamua

9:55 am

Project Lyra about to rendezvous with Oumuamua
Click to watch the animation.

Scientists have proposed a project to send an unmanned probe to Oumuamua, using the Earth, Jupiter, and then the Sun to slingshot onto a path that would catch up with the interstellar object on its journey leaving the solar system in the mid-2050s.

The project, dubbed Lyra, was first proposed in 2023. The scientists have now revised the plan to account for the greater speeds needed to catch up with Oumuamua as it continues to move away from us. It is still within the solar system, but it is moving away very fast.

The graphic to the right, a screen capture of an animation at the link, shows the spacecraft as it finally approaches the interstellar object in 2055. To get there it would launch in the early 2030s, slingshot past the Earth to reach Jupiter, which would then slow it down so that it would fall back to the Sun, passing it by less than 450,000 miles, which would slingshot it out to Oumuamua (with the help of an additional engine burn). To survive the close solar approach it would use the same technology used by the Parker Solar Probe, which has already successfully flown that close to the Sun.

It seems this is an entirely worthwhile project, since Oumuamua continues to baffle scientists as to its nature. While most belief it is a natural but very unusual interstellar asteroid, none can dismiss the possibility that it instead an alien spacecraft. The data precludes nothing. Getting close to it seems worthwhile, no matter what.

For me, that rendezvous will happen when I would be 102 years old. I don’t think I’ll be here to see it.

20 comments

Japan’s H2A rocket launches military surveillance satellite

9:24 am

Japan’s H2A rocket today successfully launched a new military surveillance satellite designed to observe North Korean’s missile launch sites.

The live stream of the launch is here, cued to T-10 seconds.

New reports had previously reported the last launch of the H2A occurred in September 2023, launching Japan’s SLIM lunar lander and XRISM X-ray telescope. This was obviously incorrect. Today’s launch appears to close out the H2A manifest, leaving Japan rocketless until it can get both its new H3 and grounded Epsilon rockets operational.

The 2024 launch race:

4 China
3 SpaceX
1 India
1 ULA
1 Japan

0 comments
1 … 276 277 278 279 280 … 1,328