NASA reveals technical problem during solar sail deployment of test mission

NASA today revealed that a technical problem occurred during the deployment of a demonstration solar sail mission launched in April on Rocket Lab’s Electron rocket.

Upon an initial attempt to unfurl, the solar sail paused when an onboard power monitor detected higher than expected motor currents. Communications, power, and attitude control for the spacecraft all remain normal while mission managers work to understand and resolve the cause of the interruption by analyzing data from the spacecraft.

The goal had been test the boom deployment of a 860 square foot sail from a cubesat only about 4 feet in size.

The concept of the solar sail is simple: Use the pressure produced by sunlight to maneuver and fly controlled throughout the solar system. The idea has been tested successfully several times, with the Japanese IKAROS test solar sail and the Planetary Society’s Lightsail-2 the most successful. Sadly almost all other attempts to test this idea have had technical problems of one kind or another.

Ironically, one test solar sail proved that such a deployment from a cubesat could be done very cheaply, unlike NASA’s effort above. Brown University students in 2023 used cheap off-the-shelf parts to launch a smallsat sail that successfully deployed and was then used to lower the satellite’s orbit in order to de-orbit it more quickly. Total cost, $10,000. And it worked.

4 comments

August 26, 2024 Quick space links

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

 

5 comments

Launch of Jared Isaacman’s second spaceflight scheduled for tonight

The real rocket behind tonight's launch
The real rocket behind tonight’s launch

UPDATE: The launch tonight was scrubbed due to a helium leak in a “ground side umbilical disconnect.” SpaceX is now targeting Wednesday, August 28 at 3:38 AM (Eastern) for the next launch attempt.
Original post:
———————–
At 3:38 am (Eastern) tonight, SpaceX’s will attempt the launch of the Polaris Dawn mission carrying billionaire Jared Isaacman (on his second spaceflight) and three other private passengers (two of which are SpaceX employees), its Falcon 9 rocket lifting off from the Kennedy Space Center in Florida carrying the Resilience capsule on its third flight.

I have embedded a live stream of the launch below. SpaceX says it will begin 3.5 hours before launch. For those on the west coast the timing is reasonable. East coasters will have to do without sleep tonight if they wish to watch.

The mission’s main engineering goal during its five-day duration is to complete the first all private spacewalk using EVA suits developed by SpaceX. Two of the crew will exit the capsule, but all four will be in the suits because the capsule has no airlock and will be entirely vented of air during the spacewalk. The mission’s secondary goal (which it actually will do first) will be to raise the orbit to about 870 miles, the highest orbit for a manned flight since the Apollo missions in the 1970s. During that high orbit the crew will do radiation research, which they will continue after the orbit is lowered. More information about the mission goals can be read here.

The mission’s real goal however has nothing to do with engineering and everything to do with freedom and the American dream. This is an entirely private mission. The rocket is privately built. The capsule is privately built. The launchpad is privately built. The launch crew is privately employed. The astronauts are all private citizens, with one paying the way for the entire flight and two flying as employees of SpaceX to test the operation of its capsule in orbit.

No government money is involved. The government had little or no say on what will happen. The mission will illustrate in very stark terms what the American dream is all about, since it has been conceived, paid for, and created entirely by private citizens following their own dreams and goals.

Hail to freedom! May the bell of liberty always ring.
» Read more

7 comments

The fall of DEI accelerates

Are Americans finally waking up and emulating their country's founders?

Fight! Fight! Fight! In the past two months it has become very clear that if Americans are willing to stand up to the left and its Marxist bigoted agenda, Americans will win.

Since late June, five different university systems have shut down their Diversity, Equity, and Inclusion offices. Each is listed below, in chronological order:

And this list does not include the University of Florida, which in March shut down its own DEI office because the state legislature not only banned such offices, it cut the budgets of them.

Though it is true these states are all solidly conservative with legislatures largely controlled by Republicans, this fact on its face proves that voting can make a difference, with Florida the biggest proof. Unlike the other states, Florida had for decades been a swing state between the Democrats and Republicans. Voters however changed that in the past decade, so that today the state legisilature is solidly Republican. The result has been a definitive policy shift acting to eliminate these racist Marxist programs from state-financed universities.

There is no reason similar changes cannot be forced in other battleground states. Nor should we consider it impossible in the coastal states (California, Oregon, Washington, New York, Massachusetts, etc) where Democrats maintain full control. DEI concepts are inherently racist and divisive, and serve only to encourage anger, resentment, and hate across all ethnic groups. Ordinary voters recognize this routinely, when they make the effort to look.

Nor are things changing solely in the unversities because of the willingness of voters to force change. The boycott of Bud Light because of its endorsement of the queer agenda last year is having profound impact on corporate culture. In just the last few months a number of major companies have announced the elimination of their own DEI departments and programs, also listed below in chronological order:

The first three stories are from NPR and CNN, which explains the effort of the headlines to blame the evil “pouncing” of conservatives for this action (thus also implying that conservatives are bigots) . In truth, what these leftist news outlets refuse to recognize is that DEI programs are bigoted by their very nature, designed to favor some races over others merely because of skin color. These programs thus violate numerous civil rights laws, not to mention basic human morality and fair treatment. In addition, it appears the customers of all these companies, not simply conservatives, made it clear they would stop buying these products if company management did not take action to shut down these DEI policies.

Faced with a public backlash and the real threat of lawsuits and legal action against them, these companies are now recognizing that it makes no sense legally, financially, and morally to promote such things.

Trump defiant after being shot
Trump defiant

Increasingly, Americans are no longer willing to make believe that DEI and Marxism has a rightful place on the intellectual landscape. These ideas are garbage and downright evil, and it is a great tragedy that American academia allowed them to flourish on campuses for the past half century. The public is now beginning to make it clear that such ideas need to be sent to the ash heap of history, and legislators, academic administrations, and corporate managements are being forced to listen.

The trend is very obvious. If people actually pay attention and make it clear they will no longer tolerate the imposition of these bigoted leftist policies, those policies can be canceled and eliminated. One simply has to have the courage to fight, as Donald Trump said with such defiance immediately after getting shot.

14 comments

A real whirlpool in space

A real whirlpool in space
Click for original image.
Cool image time! The picture above, cropped to post here, was taken by the Hubble Space Telescope as part of a survey of nearby galaxies that have what astronomers call an Active Galactic Nuclei (AGN), because the supermassive black hole at the center is devouring nearby material at a great rate and thus producing high energy emissions as it does so.

Many active galaxies are known to astronomers at vast distances from Earth, thanks to the great brightness of their nuclei highlighting them next to other, dimmer galaxies. At 128 million light-years from Earth, UGC 3478 is positively neighbourly to us. The data used to make this image comes from a Hubble survey of nearby powerful AGNs found in relatively high-energy X-rays, like this one, which it is hoped can help astronomers to understand how the galaxies interact with the supermassive black holes at their hearts.

The bottom line is that this spiral galaxy literally is a whirlpool, the entire galaxy spiralling down into that massive black hole in its center. One cannot help wondering why such galaxies don’t end up eventually getting completely swallowed by that black hole.

Or maybe they do, and we don’t see such things because all that is left is a supermassive black hole that emits no light or energy at all, a dark silent ghost traveling between the galaxies unseen and undetectable.

8 comments

First high resolution images released from Juice’s fly-by of the Earth & Moon

Juice's high resolution view of the Moon
Click for original image.

The Italian science team that runs the high resolution camera on the asteroid probe Juice have now released that camera’s first images, taken to test its operation during the spacecraft’s close fly-by of both the Moon and then the Earth a week ago.

The picture to the right, cropped, reduced, and sharpened to post here, shows the Moon’s surface during that close fly-by, which got within 435 miles. The camera is dubbed Janus, and was developed by Italy and operated by the Italian National Institute for Astrophysics.

JANUS will study global, regional and local features and processes on the moons, as well as map the clouds of Jupiter. It will have a resolution up to 2.4 m per pixel on Ganymede and about 10 km per pixel at Jupiter.

The main aim of JANUS’s observations during the lunar-Earth flyby was to evaluate how well the instrument is performing, not to make scientific measurements. For this reason, JANUS took images with various camera settings and time intervals – a bit like if you’re going out to test a DSLR camera for the first time. In some cases, researchers intentionally ‘blurred’ the images so that they can test out resolution recovery algorithms. In other cases, they partially saturated the image to study the effects induced on the unsaturated areas.

As can be seen by the sample image above, the test images appear to have demonstrated that Janus will function as planned when Juice arrives in orbit around Jupiter in 2031 in order to study that gas giant’s upper atmosphere as well as its larger icy moons, Ganymede, Calisto, and Europa.

0 comments

JAXA finally shuts down SLIM operations after four months of no contact

SLIM's last image
Click for original image.

Japan’s space agency JAXA today announced that it has now closed down all further attempts to contact its SLIM lunar lander on the surface of the Moon.

The Japan Aerospace Exploration Agency (JAXA) concluded operations of the Smart Lander for Investigating Moon (SLIM) on the lunar surface at 22:40 (JST), on August 23, after being unable to establish communication with the spacecraft during the operational periods from May to July*, following the last contact on April 28, 2024.

SLIM was launched onboard the H-IIA Launch Vehicle No.47 (H-IIA F47) on September 7, 2023 from the Tanegashima Space Center and achieved Japan’s first Moon soft landing on January 20, 2024. The landing precision was evaluated with a position error of approximately 10 meters from the target point, confirming the world’s first successful pinpoint landing. In addition, the Multi-Band Camera (MBC) successfully performed spectral observations in 10 wavelength bands on 10 rocks, exceeding initial expectations. Further, despite not being part of the original mission plan, the spacecraft was confirmed to survive three lunar nights and remained operational, demonstrating results that surpassed initial goals.

The lander’s main goal was to demonstrate the ability to do a precise robotic landing within a 100 meter landing zone. And even though one nozzle fell off during landing, resulting in SLIM landing on its side, it accomplished that goal and then survived three lunar nights, exceeding significantly its expected ability to function in harsh lunar environment.

The image to the right, reduced to post here, was taken by SLIM just before it was shut down for its first lunar night. It looks to the southeast across the width of 885-foot-wide Shioli Crater, the opposite rim the bright ridge in the upper right about a thousand feet away.

0 comments

Rocket Factory Augsburg releases footage of 1st stage failure during static fire test

The German rocket startup Rocket Factory Augsburg today released the film footage it took during the failed 9-engine static fire test of its 1st stage last week.

I have embedded that footage below.

As the company’s CEO noted two days ago, the company has identified the cause as a fire in an oxygen pump which they think was unrelated to the engine design. This explanation remains puzzling, however. If the problem was not engine design, it suggests instead some other quality control error, which it is even more important to identify in order to prevent such errors in the future.

The video provides numerous angles of the failure, including one that captured the moment when the first stage fell over. As the CEO noted, it fortunately fell in the right direction, missing critical launchpad equipment and thus reducing significantly the damage to the pad.
» Read more

2 comments

Starliner will return unmanned; crew will return in February 2025 on Dragon

Starliner docked to ISS
Starliner docked to ISS.

In a briefing today, NASA’s administrator Bill Nelson announced that Boeing’s Starliner capsule, launched in June on its first manned mission, will return unmanned and that the two astronauts it brought to ISS — Butch Wilmore and Suni Williams — will return in February 2025 as part of the crew of the next Dragon manned mission, scheduled to launch in late September.

Nelson made it a point to note that NASA’s past inactions to protect astronauts on two different shuttle missions, thus leading to their deaths, was a factor in this decision. The agency now decided safety must come first, and since Starliner’s return abilities still carry uncertainties that relate directly to safety, it decided to use a more reliable and tested Dragon capsule to return those astronauts back to Earth. During the entire briefing and Q&A session it became very clear that NASA is now paying very close attention to its engineers and their conclusions, rather than dismissing those conclusions because of other management concerns, as it did during those previous two shuttle failures.

Nelson also stated that NASA still wants to use Starliner as a second crew vehicle to ISS. He noted that he has spoken to Boeing’s new CEO, who apparently committed to getting Starliner fixed and operating. It remains undecided whether another test manned flight will be required of Boeing (at Boeing’s cost) before NASA certifies it as an operational vehicle. Whether any other customers will be willing to use the capsule remains unlikely until Boeing has flown a lot of Starliner NASA flights with no problems.

At this moment they are looking to bring Starliner back in early September, using a simplified undocking system to get the vehicle away from ISS quickly. The next Dragon mission will launch no earlier than September 24th carrying two astronauts and two empty flight suits that Wilmore and Williams use during their return.

34 comments

Update from Rocket Factory Augsburg’s CEO on first stage explosion on launchpad

Link here, but I have embedded his video statement below. He goes into detail about what they now believe happened when the rocket exploded during the static fire test, as well as the limited damage to the launchpad. They do not think the failure was a design flaw, which means it was caused by something that was done while building the engine. The company now plans to use for this first launch the stage that it was building for its second launch, and hopes to launch next year.

There was one little quote from him that tells me the company’s statement prior to the failed test that it could launch “in a matter of weeks” was based solely on its own engineering but was not going to happen. In today’s statement he says, almost as an aside, that “We wanted to launch in the next few weeks or months and this is unfortunately no longer possible.” [emphasis mine]

What the highlighted words tell me is that had this test been successful, Rocket Factory would have been able to stack the rocket and would have been willing to launch quickly. For that schedule to extend into months however could only be for one reason, an expectation that the UK’s Civil Aviation Authority (CAA) would not issue the launch license immediatley, but would dither as it did with Virgin Orbit (bankrupting that company).

Thus, red tape remains a major obstacle for the next launch. I suspect the CAA — risk adverse as all bureaucracies are — will not be comfortable issuing a new license after this failure, unless Rocket Factory can show unequivocally that it has taken actions that will prevent all such failures in the future, something that is likely impossible.

» Read more

0 comments

Blue Origin delays first New Glenn launch two weeks to October 13, 2024

The first launch of Blue Origin’s new New Glenn orbital rocket, carrying two Rocket Lab Mars orbiters built for NASA, has now been delayed two weeks to October 13, 2024.

The decision was made public by a very short and vague press release by NASA that stated no reasons for the delay and did not say clearly who made the decision. The release also did not indicate the launch window for this mission. The mission is going to Mars, which means it must launch within a certain clearly degined period this fall, when orbital mechanics will allow the orbiters to reach Mars as planned, or the mission will get delayed two years.

Blue Origin had previously targeted September 29, 2024 for the launch, but I have not been able to locate any source that states when that launch window ends. The delay of two weeks definitely shortens that window, but I don’t know how much.

Can Blue Origin meet this window? That remains unknown, but we shall soon find out.

1 comment
1 66 67 68 69 70 191