Category: Behind The Black

First commercial passenger spacewalk on Dragon will involve depressurizing entire spacecraft

9:12 am

According to an interview to Space.com by the four crew members on next year’s private manned Dragon flight financed by Jared Isaacman, the spacewalk, the first involving commercial passengers, will include all four passengers, since Dragon will not have an airlock and will be depressurized entirely when the hatch opens.

“We’ve collectively taken the position that we’re all going for an EVA,” Isaacman said, adding that the spacecraft cabin is to be depressurized in a hard vacuum. “Whether you’re sticking your head outside, you are doing an EVA. We are contemplating two people on the outside of the vehicle,” Isaacman said, “and two would be inside making sure that everything is going correct.”

To accommodate the spacewalk, this Crew Dragon will not be outfitted with a transparent dome, as was the case for the Inspiration4 mission.

The mission is presenting targeting March ’23 for launch.

8 comments

France, Germany, and Italy agree on allowing competition from European rocket startups

9:02 am

Capitalism in space: France, Germany, and Italy yesterday signed an agreement [pdf] whereby they agreed to push European policy-makers to allow competition from independent European rocket startups for launch contracts.

At least, this is what I think they have agreed to. I have read the article and the agreement several times, and remain somewhat unsure of their intent. The agreement is couched in the typical bureaucratic language specifically designed to obscure meaning. The article does little to clarify things.

It appears this is the key language in the agreement:

The proposed acknowledgement of operational European NewSpace micro and mini launch systems for ESA satellite launch service procurements, upon its adoption by Council, would effectively represent a first step towards an evolution of the launch service procurement policy for ESA missions as referred to in the ESA Council Resolution adopted in 2005.

What I gather is that these three countries no longer want European launch contract awards limited to the Arianespace rockets Ariane-6 and Vega-C. They want bidding opened to all European rocket startups, and they want the elimination of rules that require all contracts distributed by quota to European countries.

Germany already has three commercial rocket startups on the verge of their first launch, and apparently wants the European Space Agency to stop favoring Arianespace in launch contracts. That France and Italy are going along with this is significant, since Ariane-6 is dominated by French developers and Vega-C is dominated by Italian developers.

2 comments

Controllers lose contact with Orion for almost an hour

8:43 am

NASA engineers unexpectedly lost all contact with Orion for 47 minutes just after midnight last night.

NASA’s Mission Control Center at the agency’s Johnson Space Center in Houston unexpectedly lost data to and from the spacecraft at 12:09 a.m. CST for 47 minutes while reconfiguring the communication link between Orion and Deep Space Network overnight. The reconfiguration has been conducted successfully several times in the last few days, and the team is investigating the cause of the loss of signal. The team resolved the issue with a reconfiguration on the ground side.

At present the loss of signal caused no issues with the spacecraft. However, its cause has not yet been pinpointed.

2 comments

SpaceX successfully launches communications satellite for Eutelsat

8:06 pm

SpaceX tonight successfully launched a geosynchronous communications satellite for Eutelsat. This was the third launch that SpaceX has done for this European company, which previously had traditionally been launched by Arianespace. Because of the delays and higher cost to use Arianespace’s new Ariane 6 rocket, the company chose to go with SpaceX instead.

The first stage, which had flown ten times previously, successfully completed its eleventh flight, but was not recovered because all of its fuel was needed to get the satellite to its proper orbit.

The leaders in the 2022 launch race:

53 SpaceX
52 China
19 Russia
9 Rocket Lab
8 ULA

The U.S. now leads China 77 to 52 in the national rankings, but trails the rest of the world combined 80 to 77.

26 comments

Dick Cavett – Burt Lancaster in the circus

6:01 pm

An evening pause: This interview of Burt Lancaster on the Dick Cavett Show took place on July 21, 1969 (the day after Neil Armstrong took that first step on the Moon).

I could not help noting how humble and gracious Lancaster seemed. He might have been one of the world’s most charismatic actors, but he surely did not appear full of himself. The second part of this interview can be watched here.

Hat tip Cotour.

0 comments

November 22, 2022 Quick space links

4:35 pm

Courtesy of BtB’s stringer Jay.

 

 

 

 

 

2 comments

Pushback: Court rules against college’s attempt to censor students

1:33 pm

One poster that Clovis Community College tried to censor
One of the posters that Clovis Community College officials agreed to
“gladly” remove because it made some students “very uncomfortable.”

Bring a gun to a knife fight: A federal judge has issued a preliminary injunction against Clovis Community College in California, ruling that it violated the free speech rights of its students when college officials removed posters put up by students from the college’s Young Americans for Freedom chapter that condemned communism and socialism.

The lawsuit [pdf] was filed for the students by the Foundation for Individual Rights and Expression (FIRE).

The college insists that it reserves the right to remove flyers over “inappropriate or [offensive] language or themes.” The lack of any definition for those vague terms would weigh heavily with the court in granting the preliminary injunction.

FIRE produced emails showing that a college administrator offered to “gladly take down” the flyers after “several people” said that they were “very uncomfortable” with the flyers, including a person who allegedly threatened a “harassment claim” if the posters were not taken down.

» Read more

8 comments

Curiosity’s wheels: Maybe not so bad after all

11:09 am

Comparison of one wheel on Curiosity
To see the original images, go here and here.

Today the science team for the Mars rover Curiosity downloaded more photos of its wheels, a survey taken routinely now after every 500 meters or 1640 feet of travel. Unlike the pictures made available yesterday that showed some of the worst damage to one of Curiosity’s middle wheels, these new images included the wheel I have been tracking since 2017 as a baseline to see if further damage has occurred.

The photos to the right show that wheel, with the top photo from August and the bottom created from two pictures taken on November 20, 2022. The numbers indicate the matching treads. The “+” sign in the top image indicates a location where new damage was spotted in August.

As you can see, this wheel does not appear to have experienced any additional damage in the more than three months since that August update. While the damage to Curiosity’s wheels remains very concerning, it does appear based on this one wheel that — despite the generally very rough terrain the rover has been traversing since it entered the foothills of Mount Sharp — the wheels in general seem to be holding up.

Though I have not done a careful comparison of these new wheel images with earlier ones, none of the new images appear to show any additional significant damage. It appears that the travel criteria the science team adopted years ago — right after discovering the wheel damage — continues to work to protect the wheels. It picks the rover’s path more carefully to avoid sharper rocks, and includes software that stops the rover should it sense it is crossing a rock sharper than desired.

2 comments

Six of the ten cubesats launched toward the Moon by SLS still working

9:46 am

The Moon as seen by ArgoMoon
Click for full image.

Of the ten cubesats launched toward the Moon by SLS last week, six are still working while four have problems that are likely killing their missions.

The photo to the right, cropped, reduced, and sharpened to post here, was taken by ArgoMoon, an Italian cubesat that is working perfectly. The large impact basin visible is Orientale Basin, located just on the edge of the visible face of the Moon but partly hidden on the far side.

A summary of the status of all ten can be found here. Of the other five still functioning properly, all have been able to maintain proper communications.

Possibly the biggest disappointment however is the failure of Japan’s Omotenashi lander, which was going to attempt a lunar soft landing. Shortly after launch it began tumbling, and engineers were never able to regain full control or communications. The landing attempt has now been abandoned.

Side note: Orion itself also captured some images as it zipped past the Moon yesterday, but they do not appear as high quality as ArgoMoon’s pictures.

0 comments

Astronomers spot asteroid mere hours before it burned up in Earth’s atmosphere

9:29 am

For only the sixth time, astronomers this past weekend were able to image an asteroid just before it hit the Earth’s atmosphere and burned up over Canada.

The mini-asteroid, less than 3 feet (1 meter) wide, was spotted by astronomer David Rankin at Mount Lemmon Observatory in Arizona, according to SpaceWeather.com. Subsequent observations by other astronomers confirmed that the rock, coming from the direction of the main asteroid belt between the orbits of Mars and Jupiter, was on a collision course with Earth.

Only three hours after the first detection, the object, since dubbed C8FF042, sliced through the sky above Canada and landed in Lake Ontario, according to NASA.

While it is believed that most of the meteorite’s pieces that reached the ground fell into Lake Ontario, there is a chance some pieces might still be found along the south coast of the lake between Hamiliton and Niagara Falls.

0 comments

CAPSTONE enters its planned lunar orbit

9:21 am

After experiencing serious tumbling shortly after launch, engineers have successfully put the technology test smallsat CAPSTONE into its planned lunar orbit (the same to be used by NASA’s Lunar Gateway space station), where it will spend at least six months gathering data.

In addition to studying this unique orbit, CAPSTONE’s mission also includes two technology demonstrations that could be used by future spacecraft. The Cislunar Autonomous Positioning System, or CAPS, is a navigational software developed by Advanced Space that would allow spacecraft operating near the Moon to determine their position in space without relying exclusively on tracking from Earth. CAPSTONE will demonstrate this technology by communicating directly with NASA’s Lunar Reconnaissance Orbiter, which has been in orbit around the Moon since 2009. CAPSTONE will also demonstrate one-way ranging using a chip-scale atomic clock, which could allow spacecraft to determine their position in space without the need for a dedicated downlink to ground stations.

CAPSTONE is also demonstrating a third technology as well as the use of capitalism in space. The third technology is demonstrating the viability of using a tiny inexpensive smallsat for these kinds of interplanetary missions. The capitalism is that CAPSTONE was built by a private company, Terran Orbital, not NASA, and is being operated by another private company, Advanced Space, not NASA. It was also launched by a private company, Rocket Lab, not NASA. All three have proved or are proving that it is faster and cheaper for the government to merely act as the customer to private enterprise, rather than being the builder/operator and boss.

2 comments

ABL’s RS1 rocket has another abort at launch

9:10 am

In making its third attempt to launch its first RS1 rocket, ABL engineers experienced their second abort at T-0, with the rocket shutting down just as its engines ignited.

The first attempt on Monday, Nov. 14, was scrubbed due to off-nominal data on the first stage during propellant loading. A second attempt on Thursday, Nov. 17, was aborted due to turbopump oxygen inlet conditions at engine ignition. The most recent attempt on Monday, Nov. 21, was aborted during engine ignition at T-1.75 seconds.

The company is now targeting December 7th for their fourth launch attempt. The rocket carries two customer cubesats, but its main mission is to demonstrate its ability to reach orbit.

0 comments
1 … 663 664 665 666 667 … 2,916