Tag: spaceflight

Mars Express successfully relays data from Zhurong to Earth

10:21 am

The European Space Agency’s Mars Express orbiter has successfully been used to relay data from China’s Zhurong Mars rover to Earth and then to China.

In November, ESA’s Mars Express and CNSA’s Zhurong teams carried out a series of experimental communication tests in which Mars Express used this ‘in the blind’ mode to listen for signals sent to it by the Zhurong Rover.

The experiments culminated in a successful test on 20 November. “Mars Express successfully received the signals sent by the rover, and our colleagues in the Zhurong team confirmed that all the data arrived on Earth in very good quality.” says ESA’s Gerhard Billig.

Apparently, normal communications would first involve “handshake” communications between the two, but that requires communications frequencies Zhurong does not use. Mars Express instead had to grab the data on the blind. The test was a success, which means the ESA will likely act as another communications relay for Zhurong, in addition to China’s Tianwen-1 orbiter, as the rover’s mission on Mars continues.

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Russia threatens to destroy U.S. GPS satellites

10:03 am

During a telecast on Russia TV, the television host claimed that Russia could destroy the entire American GPS satellite constellation, using its anti-satellite missile technology, should the U.S. or NATO “cross our red line.”

The Kremlin warned it could blow up 32 GPS satellites with its new anti-satellite technology, ASAT, which it tested Nov. 15 on a retired Soviet Tselina-D satellite, according to numerous news reports.

Russia then claimed on state television that its new ASAT missiles could obliterate NATO satellites and “blind all their missiles, planes and ships, not to mention the ground forces,” said Russian Channel One TV host Dmitry Kiselyov, rendering the West’s GPS-guided missiles useless. “It means that if NATO crosses our red line, it risks losing all 32 of its GPS satellites at once.”

The article claims “numerous news reports”, but it appears they all boil down to Kiselyov’s pronouncements on this one broadcast.

No matter. The Putin government is testing the waters, and showing that it is ready and willing to escalate tensions. It apparently thinks the Biden administration is too weak to respond. And who can disagree?

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Sculptured lava south of Olympus Mons?

10:51 am

Sculptured lava?
Click for full image.

Time for a cool image! The photo to the right, rotated, cropped, and reduced to post here, was taken on September 8, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a region of strangely sculptured terrain located several hundred miles south of Olympus Mons.

It appears the prevailing winds are to the west. The question is whether the wind is shaping a hard lava surface, over eons, or is shaping instead layers of dust or volcanic ash quickly and seasonally. At this location either is possible. In fact, we might even be seeing evidence of both at the same time.

The overview map below shows that the location is just outside the Medusae Fossae Formation, the largest volcanic ash deposit on Mars.
» Read more

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Musk shakes up Raptor engine development

11:16 am

Capitalism in space: Based on all the reports I’ve read, Elon Musk this past weekend did a major shake-up of the management that was running the Raptor engine development, apparently focused on the need to be able to mass produce these engines at a very high rate to allow numerous test flights in the coming year.

More here, including this company email from Musk:

Unfortunately, the Raptor production crisis is much worse than it had seemed a few weeks ago. As we have dug into the issues following the exiting of prior senior management, they have unfortunately turned out to be far more severe than was reported. There is no way to sugarcoat this.

I was going to take this weekend off, as my first weekend off in a long time, but instead, I will be on the Raptor line all night and through the weekend.

The management shakeup was as follows:

This ‘senior management’ that left is likely referring to Will Heltsley, former SpaceX senior vice president of propulsion. As CNBC reported, he left Raptor production due to a lack of progress. In addition, former SpaceX vice president of mission and launch operation Lee Rosen and senior director of mission and launch operations Rick Lim have left the company. Raptor engine production is now being led by Jacob Mackenzie, who has been with the company for over six years.

The reports imply that the engine itself is in trouble, but I do not think that is the issue. Instead, as Musk has said many times, more important than developing new technology is developing the efficient manufacturing processes that will allow the company to take advantage of that technology. It appears the manufacturing part of Raptor had not been covered well by the now disposed management.

SpaceX not only needs a working reliable Raptor engine, it needs to be able to mass produce them in the hundreds, quickly. This is the challenge that apparently the previous management failed to face. Musk is now refocusing Raptor development around this need.

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NASA postpones ISS spacewalk due to debris from Russian anti-sat test

9:41 am

NASA today postponed a planned ISS spacewalk to fix an antenna because of a threat from debris from the Russian anti-sat test.

On Tuesday, about five hours before the astronauts Thomas Marshburn and Kayla Barron were due to venture outside the space station, Nasa said on Twitter that the spacewalk to fix a failed antenna had been cancelled. “NASA received a debris notification for the space station. Due to the lack of opportunity to properly assess the risk it could pose to the astronauts, teams have decided to delay the 30 November spacewalk until more information is available,” it tweeted.

This problem is only going to get worse. The Russians did something with that anti-satellite test that was either so stupid as to defy logic, or intentional in the worst sort of way. Russia’s actions actually suggest the Putin administration wanted to sabotage ISS.

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Engineers recover a third Hubble instrument

2:39 pm

Engineers have now reactivated a third instrument on the Hubble Space Telescope, bringing the telescope very close to full operations again with only one instrument, a spectrograph, still in safe mode.

The Hubble Space Telescope team recovered the Cosmic Origins Spectrograph instrument on Sunday, Nov. 28, moving the telescope further toward full science operations. Three of Hubble’s four active instruments are now collecting science data once again.

The team also continued work on developing and testing changes to instrument software that would allow them to conduct science operations even if they encounter several lost synchronization messages in the future. Those changes would first be installed on the Cosmic Origins Spectrograph once they’re completed and tested within a few weeks. Hubble’s other instruments would also receive similar changes. The team has not detected further synchronization message issues since monitoring began Nov. 1.

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Russians set December 8th for launch of next ISS tourist flight

10:17 am

Capitalism in space: Roscosmos today announced that the next tourist flight to ISS of two Japanese tourists will launch on December 8th.

“According to the Russian plan of ISS flight, the Soyuz-2.1A rocket carrying the Soyuz MS-20 transport spaceship with the 20th visiting ISS expedition on board is scheduled to lift off from the Baikonur cosmodrome at 10:38 am Moscow time [07:38 GMT] on December 8, 2021,” the agency said.

The crew will include Roscosmos cosmonaut Alexander Misurkin and two Japanese space tourists – billionaire Yusaku Maezawa and his assistant Yozo Hirano

Maezawa is also the man who has signed a deal with SpaceX to fly to the Moon on Starship, once that spacecraft is finished.

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Nice overview of space tourism options

1:37 pm

Link here. The author does an excellent job outlining in detail the pros and cons of each space tourism option, from Virgin Galactic (“joy ride”) to Axiom’s orbital station trips (“Five stars!”)

She misses a few however, such as the recent announcement by the balloon company Worldview that it plans near space tourists flights in competition with Space Perspectives, and for a much smaller ticket price. There are also two Spanish balloon companies gearing up to capture this end of the space tourist business.

Regardless, if you’ve got some spare cash and want to spend it in an adventurous way, here is a guide for doing so.

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Engineers: Webb undamaged by “incident”, ready for December 22nd launch

9:46 am

Arianespace engineers have confirmed after testing that the James Webb Space Telescope was undamaged by “incident” that occurred during stacking, and have okayed the resumption of the telescope’s preparation for launch.

On Wednesday, Nov. 24, engineering teams completed these tests, and a NASA-led anomaly review board concluded no observatory components were damaged in the incident. A “consent to fuel” review was held, and NASA gave approval to begin fueling the observatory. Fueling operations will begin Thursday, Nov. 25, and will take about 10 days.

The launch is now set for December 22nd.

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China’s Kuaizhou-1A rocket launches classified government satellite

9:40 am

Late yesterday China’s Kuaizhou-1A rocket successfully launched classified government satellite into orbit.

The Kuaizhou rocket is supposedly operated by the pseudo private company Expace, but nothing it does happens without the approval of the Chinese government.

The leaders in the 2021 launch race:

44 China
26 SpaceX
20 Russia
5 Europe (Arianespace)

China now leads the U.S. 44 to 41 in the national rankings.

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Ingenuity completes 16th Mars flight

9:38 am

According to a tweet by the Ingenuity team, the Mars helicopter successfully completed its 16th flight on Mars on November 21st.

“#MarsHelicopter continues to thrive!” mission personnel wrote in a tweet posted Monday (Nov. 22). “The mighty rotorcraft completed its 16th flight on the Red Planet last weekend, traveling 116 meters northeast for 109 seconds. It captured color images during the short hop, but those will come down in a later downlink.”

No images have as yet been downloaded from the flight.

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Rocket Lab to attempt 1st stage recovery by helicopter, beginning early next year

9:30 am

Capitalism in space: Rocket Lab announced today that based on the data obtained during its previous launch in November, the company will attempt a helicopter recovery in the air of its Electron rocket’s first stage, starting with its first launches in 2022.

With the success of this latest mission, Rocket Lab will now move to aerial capture attempts with a helicopter for future recovery missions in the first half of 2022. Rocket Lab’s recovery helicopter will include auxiliary fuel tanks for extended flight time during the capture attempt. While Rocket Lab’s engineers and recovery vessel will also be stationed at sea, Rocket Lab’s primary objective will be to return Electron’s booster to the mainland while attached to the helicopter. Improvements to the launch vehicle for this next recovery attempt will include a thermal protection system applied to the entire stage and its nine Rutherford engines to help it endure heat of up to 2,400 degrees Celsius during re-entry, and modifications to the parachute system including an engagement line for the recovery helicopter to capture and secure the booster.

The company has a launch scheduled for the end of November, but apparently it is not going to attempt a first stage recovery by helicopter during that mission.

If successful, Rocket Lab will have become the second company able to reuse its first stage, and thus cut the price it charges for launches significantly.

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Russia successfully launches Progress with new docking hub for ISS

9:15 am

Russia today successfully launched a new Progress freighter carrying Prichal, a new docking hub for the Russian half of ISS.

If all goes as planned, Prichal will dock to Nauka in two days.

The leaders in the 2021 launch race:

43 China
26 SpaceX
19 Russia
5 Europe (Arianespace)

China still leads the U.S. 43 to 41 in the national rankings. This launch was the 111th successful launch in 2021, which tied the number from 2018 that had been the highest since the 1990s.

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SpaceX successfully launches NASA asteroid mission

8:58 am

Last night SpaceX’s Falcon 9 rocket successfully launched NASA’s DART asteroid mission.

The first stage landed successfully, completing its third flight. This was SpaceX’s 26th launch in 2021, setting a new record for the company and in fact for any private company ever.

DART’s mission is to test one method for changing an asteroid’s orbit.

After launch tonight, DART will take aim on an asteroid called Dimorphos. The spacecraft will strike Dimorphos at nearly 15,000 mph (about 6.6 kilometers per second).

The primary science goal of the mission is to measure how the high-speed collision next September, which will destroy the DART spacecraft, disrupts the orbit of Dimorphos around nearby Didymos. The data could help plan a future mission to deflect an asteroid on a course to hit Earth.

Dimorphos and its larger companion Didymos pose no near-term threat to Earth, but the asteroids will be close enough to our planet next year for astronomers to observe DART’s impact using ground-based telescopes. The asteroids orbit the sun in an elongated path that occasionally bring them into Earth’s neighborhood. That makes them potentially hazardous asteroids, although scientists say there is no near-term threat from the pair.

No space mission has ever explored Didymos and Dimorphos, but scientists who have observed them through telescopes say the asteroids are about a half-mile (780 meters) and 525 feet (160 meters) in diameter, respectively.

An Italian cubesat is also on board, and will separate from DART about ten days before impact so that it can observe the impact with two camera.

The leaders in 2021 launch race:

43 China
26 SpaceX
18 Russia
5 Europe (Arianespace)

China now leads the U.S. 43 to 41 in the national rankings. For the U.S. SpaceX’s launch last night topped the U.S. total from last year, which was this country’s highest launch total since the 1960s.

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Second camera on Hubble returned to science operations

10:35 am

Engineers working to reactivate the instruments on the Hubble Space Telescope have successfully brought a second camera out of safe mode.

NASA continues bringing the Hubble Space Telescope back to normal science operations, most recently recovering the Wide Field Camera 3 instrument Sunday, Nov. 21. This camera will be the second of Hubble’s instruments, after the Advanced Camera for Surveys, to resume science after suspending the spacecraft’s observations Oct. 25. The Wide Field Camera 3’s first science observation since the anomaly will be Nov. 23.

The team chose to restore the most heavily used Hubble instrument, the Wide Field Camera 3, which represents more than a third of the spacecraft’s observing time. Engineers also began preparing changes to the instrument parameters, while testing the changes on ground simulators. These changes would allow the instruments to handle several missed synchronization messages while continuing to operate normally if they occur in the future. These changes will first be applied to another instrument, the Cosmic Origins Spectrograph, to further protect its sensitive far-ultraviolet detector. It will take the team several weeks to complete the testing and upload the changes to the spacecraft.

The telescope’s other instruments remain in safe mode as the engineers continue to investigate the problem that caused the shut down on October 25th.

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China launches another Earth observation satellite

10:21 am

China’s high pace of launches in 2021 continued yesterday with another launch, this time placing an Earth observation satellite into orbit using its Long March 4C rocket.

This was China’s 43rd successful launch in ’21, three more than it had predicted it would achieve at the start of the year and the most any single nation has accomplished since the Russians completed 49 in 1994.

The leaders in the 2021 launch race:

43 China
25 SpaceX
18 Russia
5 Europe (Arianespace)

China now leads the U.S. 43 to 40 in the national rankings.

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Webb launch delayed four days because of “incident” during stacking

2:18 pm

NASA management has decided to delay the launch of the James Webb Space Telescope for four days while engineers investigate whether an “incident” that occurred during the telescope’s stacking on top of an Ariane 5 rocket could have long term consequences.

Technicians were preparing to attach Webb to the launch vehicle adapter, which is used to integrate the observatory with the upper stage of the Ariane 5 rocket. A sudden, unplanned release of a clamp band – which secures Webb to the launch vehicle adapter – caused a vibration throughout the observatory.

A NASA-led anomaly review board was immediately convened to investigate and instituted additional testing to determine with certainty the incident did not damage any components. NASA and its mission partners will provide an update when the testing is completed at the end of this week.

The launch had been scheduled for December 18th. They have now pushed it back to December 22nd.

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History Unplugged – The Age of Discovery 2.0: Episode 6

8:48 am

Episode six of the six part series, The Age of Discovery 2.0, from the podcast, History Unplugged, is now available here.

On this episode Scott Rank interviews Ram Jakhu, an associate professor at McGill University and a researcher on international space law. From the show summary:

The British East India Company is perhaps the most powerful corporation in history. It was larger than several nations and acted as emperor of the Indian subcontinent, commanding a private army of 260,000 soldiers (twice the size of the British Army at the time). The East India Company controlled trade between Britain and India, China, and Persia, reaping enormous profits, flooding Europe with tea, cotton, and spices. Investors earned returns of 30 percent or more.

With SpaceX building reusable rockets and drawing up plans to colonize Mars, could we be seeing a new British East India Company for the 21st century? The idea isn’t that far-fetched. In the terms of service for its Starlink satellite internet, one clause reads the following: “For Services provided on Mars, or in transit to Mars via Starship or other colonization spacecraft, the parties recognize Mars as a free planet and that no Earth-based government has authority or sovereignty over Martian activities. Accordingly, Disputes will be settled through self-governing principles, established in good faith, at the time of Martian settlement.”

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