Ingenuity completes 31st flight

3:06 pm

Perseverance's location on September 2, 2022
Click for interactive map

Though no details have yet been released, the engineering team for the Mars helicopter Ingenuity has posted the numbers for the helicopter’s 31st flight, which took place yesterday.

Ingenuity flew 318 feet to a height of 33 feet for 56 seconds. The maximum ground speed was 10.6 mph. The white dot on the map to the right indicates the approximate landing spot. The blue dot Perseverance’s location as of September 3rd.

The flight plan had been to fly 319 feet, so Ingenuity landed one foot short of that plan.

That difference does not indicate any problems. However, one of the present goals of the engineering team is to improve their landing accuracy in order to provide data for the future sample return helicopter that is now in development to come and get Perseverance’s sample cores. That future helicopter will need to be able to land very precisely, and they are using Ingenuity to refine the Martian flight software.

Leave a comment

An example of the youngest big lava flow on Mars

1:34 pm

An example of the youngest big lava flow on Mars
Click for full image.

Overview map

Cool image time! The photo above, rotated, cropped, and reduced to post here, was taken on May 13, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and shows two dramatic ancient flows of flood lava. The arrows indicate what I think is the direction of flow for each, though the direction of the flow to the north appears more certain. In a wider context camera image the bulk of the evidence suggests the southern flow is heading west (as indicated by the arrow), but there are scalloped mesas within it that suggest the opposite.

The overview map above marks the location of this picture by the white cross inside the Athabasca Valles flood lava, thought by some scientists [pdf] to be Mars’ youngest major lava event that erupted about 600 million years ago and in just a matter of a few weeks poured out enough lava to cover an area about the size of Great Britain.

The general trend of the Athabasca flow was to the south, splitting into a big western and southeastern flows. This picture captures the southern edge of that southeastern flow, which might help explain why the flow directions in the picture seem so different from the main Athabasca flow. On a large scale, the flow was to the southeast. On a small scale at the edges the flow could go in many directions as the lava looks to find its level.

The Medusa Fossae Formation is the largest volcanic ash deposit on Mars, and is thought to be the source of most of the red planet’s dust. Though the origin of the ash is not yet known, it likely came from the eruptions that formed the planet’s giant volcanoes to the east and west.

Leave a comment

Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon, any other book seller, or direct from my ebook publisher, ebookit. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

1-in-5 Democrats and 1-in-3 women Democrats think men can get pregnant

12:41 pm

The uncertainty of science? An online survey has found that large numbers of self-described Democrats now believe that it is possible for a man to give birth to babies.

The online survey, conducted by WPA Intelligence from August 22-25, found 22% of Democrats agreed with the statement, “Some men can get pregnant.” The percentage rose when only including women, and a whopping 36% of white, college-educated female Democrats concurred. [emphasis mine]

There is no uncertainty here. Men cannot get pregnant, and to believe it is possible tells us that you are either insane, or utterly disconnected from the real world.

The highlighted words underline the madness that is overtaking our intellectual upper classes. More than one-third of college educated Democrat women believe this. No wonder these same people wear masks, get triple and quadruple COVID jabs, and want any evidence that they are wrong censored with the speakers blackballed. They have become so divorced from reality that to even let a peep of it enter their brains will cause their heads to explode.

20 comments

Pushback: Libs of TikTok threatens Twitter with lawsuit if banning continues

12:25 pm

Twitter: Home for censorship
Twitter: Home for censorship.

Bring a gun to a knife fight: After getting suspended again by Twitter for merely proving that Boston Children’s Hospital was doing sex change operations on children, Libs of TikTok founder Chaya Raichik had her lawyers send the social media company a letter threatening a lawsuit if the suspension was not lifted immediately.

As she notes,

Last week, I was wrongfully suspended from Twitter for seven days after I exposed a hospital that admitted to performing gender-affirming hysterectomies on healthy minors. I say “wrongfully” because the reason given for my suspension was hateful conduct. I did not engage in hateful conduct. I accurately reported the truth

In their letter Raichik’s lawyers made it clear [pdf] that nothing she did was hateful. If anything, her actions caused others on Twitter to spew hate at her. As the lawyers noted also,
» Read more

One comment

Conscious Choice cover

Now available in hardback and paperback as well as ebook!

 

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.

Research: Flies on ISS benefited greatly from simulated gravity

10:52 am

Scientists have found that providing fruitflies 1g of artificial gravity on ISS using a centrifuge acted to reduce the medical changes that weightlessness produces.

In this study, scientists sent flies to the space station on a month-long mission in a newly developed piece of hardware called the Multi-use Variable-gravity Platform (MVP), capable of housing flies at different gravity levels. The flies in this hardware had access to fresh food as they lived and reproduced. By using distinct compartments, the MVP allowed for different generations of flies to be separated. On the space station, one group of fruit flies experienced microgravity similar to their human counterparts. Another group was exposed to artificial gravity by simulating Earth’s gravity on the space station using a centrifuge – an instrument that spins to simulate gravity. While on the space station, cameras in the hardware recorded behavior of these “flyonauts”. At different points in time, some of the flies were frozen and returned to Earth to study their gene expression.

…More in-depth analysis on the ground immediately post-flight revealed neurological changes in flies exposed to microgravity. As the flies acclimated to being back on Earth after their journey, the flies that experienced artificial gravity in space aged differently. They faced similar but less severe challenges to the flies that were in microgravity.

You can read the paper here.

To some extent, this study tells us nothing. We already know from a half century of research that zero gravity causes negative physical changes in both fruit flies and humans. What we really need to know is the lowest level of artificial gravity that would be beneficial. It is much easier to engine a spacecraft to produce 0.1g of artificial gravity than 1g. Even 0.5g would ease the engineering problem. The problem is that we do not yet know the right number.

It is a shame the scientists didn’t subject some flies to 0.5g, just to find out if that level of artificial gravity worked to provide benefits.

18 comments

Rocket Lab gets contract with military to study point-to-point cargo transport

10:33 am

Capitalism in space: Rocket Lab yesterday revealed that the U.S. military has given it a contract to study whether its rockets could eventually be used for point-to-point cargo transport.

This study contract is similar to the one the military gave SpaceX for its Starship/Superheavy rocket. Both are intended not to actual fly missions, but to look at the engineering of the rockets to see if it will be practical to use them for point-to-point cargo transport on Earth.

The deal suggests the military has been impressed with Rocket Lab’s efforts to make its smallsat Electron rocket resusable, as well as its development program for its newer and larger Neutron resusable rocket.

2 comments

Leaving Earth cover

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

 

If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.

 

Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.

 
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

Computer model: Glaciers move slower in Mars’ gravity

10:00 am

Using a computer model that compared glacier flows on Earth and Mars, scientists have concluded that past glaciers on Mars flowed more slowly than on Earth, and produced different types of erosion features that might explain the red planet’s many riverlike geological features.

The new study modeled how Mars’ low gravity would affect the feedback between how fast an ice sheet slides and how water drains below the ice, finding under-ice channels would be likely to form and persist. Fast water drainage would increase friction at the interface of rock and ice. This means ice sheets on Mars likely moved, and eroded the ground under them, at exceedingly slow rates, even when water accumulated under the ice, the authors said.

From the paper [pdf]:

We show quantitatively that the lower surface gravity on Mars should alter the behavior of wet-based ice masses by modifying the subglacial drainage system, making efficient, channelized drainage beneath Martian ice both more likely to form and more resilient to closure. Using as an example the case of the ancient southern circumpolar ice sheet, we demonstrate that the expected finger-print of wet-based Martian ice sheets is networks of subglacial channels and eskers, consistent with the occur-rence of valley networks and inverted ridges found on the Martian highlands.

This paper confirms the sense I have gotten from the planetary community about glaciers on Mars, that it could be the flow of glaciers that formed its many meandering canyons, not liquid water. The case however is not yet proven, as this is only a computer model.

Leave a comment

China’s Long March 2D launches two military satellites

9:40 am

China yesterday successfully launched two military satellites using its Long March 2D rocket.

Launched from an interior spaceport, the rocket’s first stage crashed somewhere in China.

The leaders in the 2022 launch race:

40 SpaceX
36 China
11 Russia
6 Rocket Lab
5 ULA

American private enterprise still leads China 55 to 36 in the national rankings, and the entire world combined 55 to 54.

Leave a comment

September 6, 2022 Quick space links

5:16 pm

Courtesy of Jay, BtB’s intrepid stringer.

  • Sierra Space: Mission: Tenacity Part 1

    • This video is just an empty-of-content commercial for Sierra Space, filled with feel-good “woke” blather but little real information about the actual status of this long overdue spacecraft. It is worth watching however because it reveals this emptiness. Reminds me of the many similar videos from Blue Origin and NASA over the years, filled with big promises but little actual achievement.

  • How does Starlink Satellite Internet Work?

    • This video, almost 30 minutes long, is definitely worth watching if you have any interest in signing up for Starlink, or just have an interest in the coming low orbit satellite constellation boom.

2 comments

The evidence continues to pile up: The government’s strongarm policies against COVID were utter failures

2:05 pm

The modern basis of medical research in the dark age
Health policy during the Wuhan panic

Since my last COVID update in June, the number of research papers has continued to show, with increasing force, the total and utter failure of every single one of the draconian edicts imposed on the pubic by leftist governments both in Democratic Party controlled states in the U.S. as well as worldwide.

Below are a small sampling of this accumulating research. Read it and weep.

My sorrow however comes from knowing that this knowledge was patently obvious from day one. This new research really isn’t new, it confirms what was well known, and was confirmed quickly as early as March 2020. However, when skeptics like myself, mostly on the right, desperately tried to stem the panic, it was all to no avail. The government’s edicts were always wrong, but no one wanted to listen. The data below merely confirms what all the data, before and during the Wuhan panic, was already telling us.
» Read more

17 comments

South Korea’s Danuri lunar orbiter successfully makes course correction

10:20 am

On September 2nd engineers for South Korea’s Danuri lunar orbiter successfully completed a major course correction, firing its engines to adjust its path towards the Moon.

The science ministry announced Sept. 4 that the maneuver was so successful that the Korea Aerospace Research Institute (KARI), which controls the spacecraft called Danuri, has decided to skip an additional correction maneuver planned for Sept. 16.

It will reach lunar orbit on December 16th, then make five more orbital adjustments before reaching its science orbit in January. While the spacecraft has instruments from both South Korea and the U.S. for studying the lunar surface, its main goal is to teach South Korea engineers and scientists how to do this.

One comment

Inouye Solar Telescope begins science operations

10:07 am

The National Science Foundation yesterday announced the inauguration of science operations of the Daniel K. Inouye Solar Telescope in Hawaii.

The sample first images provided at the link are excellent, but rather than show this telescope’s abilities, they instead illustrate the absurdity of spending millions to build a ground-based telescope. None compare with the spectacular high resolution solar images being produced today from the myriad of solar telescopes in space.

Moreover, the history of this telescope tells us much about the bankrupt nature of all modern government projects:

Over 25 years ago, the NSF invested in creating a world-leading, ground-based solar observatory to confront the most pressing questions in solar physics and space weather events that impact Earth. This vision, executed by the Association of Universities for Research in Astronomy (AURA) through the NSF’s National Solar Observatory (NSO), was realized during the formal inauguration of the Inouye Solar Telescope. [emphasis mine]

It took our modern incompetent federal government a quarter century to build this single telescope. Compare that with the construction of the solar telescopes it is replacing. They were conceived, designed, and built in much less than a decade back in the early 1960s. And cost less too.

The press release at the link also spends a lot of space touting “diversity” and “Native Hawaiian” cultural needs, which really have nothing to do with the study of the Sun. That focus tells us how misguided our government has become, and how it is using its coercive power to drag us all along down that foolish path towards hell.

2 comments

Webb’s infrared view of the Tarantula Nebula

9:55 am

Two views of the Tarantula Nebula by Webb
Click for original image.

The two images to the right, reduced and annotated to post here, were released today by the science team of the James Webb Space Telescope, and show two different views of the Tarantula Nebula, located 161,000 light years away in the Large Magellanic Cloud.

It is home to the hottest, most massive stars known. Astronomers focused three of Webb’s high-resolution infrared instruments on the Tarantula. Viewed with Webb’s Near-Infrared Camera (NIRCam) [top], the region resembles a burrowing tarantula’s home, lined with its silk. The nebula’s cavity centered in the NIRCam image has been hollowed out by blistering radiation from a cluster of massive young stars, which sparkle pale blue in the image. Only the densest surrounding areas of the nebula resist erosion by these stars’ powerful stellar winds, forming pillars that appear to point back toward the cluster. These pillars contain forming protostars, which will eventually emerge from their dusty cocoons and take their turn shaping the nebula.

…The region takes on a different appearance when viewed in the longer infrared wavelengths detected by Webb’s Mid-infrared Instrument (MIRI) [bottom]. The hot stars fade, and the cooler gas and dust glow. Within the stellar nursery clouds, points of light indicate embedded protostars, still gaining mass. While shorter wavelengths of light are absorbed or scattered by dust grains in the nebula, and therefore never reach Webb to be detected, longer mid-infrared wavelengths penetrate that dust, ultimately revealing a previously unseen cosmic environment.

As with all images from Webb, these are false color, as the telescope views the infrared heat produced by stars and galaxies and interstellar clouds, not the optical light our eyes see. Thus, the scientists assign different colors to the range of wavelengths each instrument on Webb captures.

These photos once again illustrate Webb’s value. It will provide a new layer of data to supplement the basic visual information provided by the Hubble Space Telescope, allowing scientists to better understand the puzzles we see in the optical.

8 comments

More static fire tests of Starship/Superheavy expected this week

9:35 am

SpaceX appears to be gearing up for more engine tests of both Superheavy prototype #7 and Starship prototype #24 this week, having called for road closures at Boca Chica today with additional options thoughout the week.

The article at the link mostly provides an overview of the changes in both stages that occurred because of the shift from the first version of the Raptor engine to the much more streamlined Raptor-2. The side-by-side image of both versions is quite revealing, showing once again how much SpaceX adheres to Musk’s adage that “the best part is no part.” Raptor-2 is astonishingly simpler and more compact, even though it produces about 25% more power.

Leave a comment

China launches two satellites with its Kuaizhou-1A rocket

9:18 am

China today successfully placed what it labeled as “two test satellites” into orbit using its smallsat Kuaizhou-1A rocket.

No information at all was released about both satellites.

The leaders in the 2022 launch race:

40 SpaceX
35 China
11 Russia
6 Rocket Lab
5 ULA

American private enterprise now leads China 55 to 35 in the national rankings, and the entire world combined 55 to 53.

Leave a comment

Gullies and glaciers in a crater on Mars

4:46 pm

The gullies and glaciers in Avire Crater
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on July 10, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows the floor of 4-mile-wide Avire Crater, located at about 41 degrees south latitude inside the much larger 185-mile wide Newton Crater.

This picture was taken as part of a long term monitoring program of the many gullies that flow down the slopes of the crater’s interior rim. In fact, the gullies of this crater have so interested scientists that one even proposed [pdf] this location as a potential future rover landing site.

Avire Crater, a small … gullied crater within Newton Crater, provides many aspects ideal to a future rover mission. It has been previously hypothesized to be the location of a former paleolake with multiple episodes of ponding and deposition. Gullies occur almost continuously on the southwest wall clockwise to the northeastern wall. Dark-toned dunes are present in the northern portion of the crater, in some places obscuring gullies while cut by gullies in others. No changes in the extent or appearance of the dunes have been observed since they were first imaged … in January of 2000. The dunes lack superimposed craters, indicating that the gullies that cut through them are geologically very youthful. Layered lobate features are present at the base of the gullies on the northern wall, seen in many other craters on Mars (not always in association with gullies), which have been suggested to have formed as terminal moraines of ice-rich flows; in Avire, these features have also been suggested to be paleolake deposits. The crater floor is obscured by mid-latitude “fill” material, hypothesized to be partially comprised of ice based on morphologic evidence that the material has been partially removed.

As gullies, dunes, and “fill” material occur in many places on Mars, a single rover mission to a site containing these features would provide valuable information applicable to thousands of other locations across the planet.

The curved ridgeline in the crater floor is thought to be a moraine. The “fill” material to the south is essentially glacial in nature. Both, as well as the gullies, appear to have been shaped either a paleolake that once existed in the crater or by cyclical glacier activity. By going to this one crater, scientists could study all these different geological features at one time.
» Read more

Leave a comment

Today’s blacklisted American: Fire chief fired for attending a Christian-affiliated leadership conference

1:02 pm

Christians banned from Stockton's government

They’re coming for you next: Ron Hittle, who had served as a firefighter in Stockton, California, for more than two decades and was for five years its fire chief, was fired in 2010 because he had had the nerve to attend a leadership conference that happened to be affiliated with the Christian religion.

More than a decade ago, the Deputy City Manager asked Chief Hittle to attend leadership training. Chief Hittle learned about the Willow Creek Global Leadership Summit from a business magazine, and he decided to attend because it was a renowned leadership seminar that featured a “pop up business school” with stellar speakers from various backgrounds including his own Christian worldview. Chief Hittle invited three of his staff members who shared his Christian faith to join him, and he put his attendance on the public city calendar so his supervisors would be aware. The firefighters paid for the two-day seminar with their own funds.

But the same supervisor who asked Chief Hittle to attend leadership training told him it was unacceptable that he attended a Christian-affiliated seminar.
» Read more

22 comments

September 5, 2022 Space quick links

11:11 am

All courtesy of BtB’s stringer Jay.

One comment

India’s space agency successfully tests prototype for controlling descent of spent 1st stages

9:38 am

IAD by ISRO

India’s space agency ISRO on September 3, 2022 successfully used a suborbital sounding rocket to test a prototype of an inflatable airbag, which it dubs an Inflatable Aerodynamic Decelerator (IAD), that can inflate at the top of a 1st stage and slow and control its descent back to Earth after launch.

The graphic to the right was adapted from the mission brochure [pdf]. According to ISRO:

The IAD was initially folded and kept inside the payload bay of the rocket. At around 84 km altitude, the IAD was inflated and it descended through atmosphere with the payload part of sounding rocket. The pneumatic system for inflation was developed by LPSC. The IAD has systematically reduced the velocity of the payload through aerodynamic drag and followed the predicted trajectory. This is first time that an IAD is designed specifically for spent stage recovery. All the objectives of the mission were successfully demonstrated

ISRO claims this design can not only facilitate the reuse of first stages, it can also be used for science payloads to Mars and Venus.

I look at this and wonder, wouldn’t parachutes or parasails, already developed and used numerous times in similar applications, do the same job? In fact, Rocket Lab has already successfully used parachutes to control the re-entry of its Electron first stages. Meanwhile, SpaceX uses simple and lightweight grid fins to control the descent of its Falcon 9 first stages, and simply fires that stage’s engines twice to slow it down for landing.

While there may be engineer advantages to this airbag design, the whole thing smacks of many of NASA’S complex test programs that never made it past prototype tests. The ideas always looked good, but they never were practical or cost effective.

7 comments

Indian rocket startup raises $51 million in private investment capital

9:08 am

Capitalism in space: The Indian rocket startup Skyroot has just raised $51 million in private investment capital for the development of its smallsat rocket, Vikram-1.

Operating as a private aerospace manufacturer and commercial launch service provider in the country, the Hyderabad-headquartered startup has been working on its flagship Vikram series of small-life launch vehicles. The first among them, the Vikram 1, is slated to take to the skies by the end of the year and launch small satellites to space.

The $51 million is the most any private aerospace commercial company from India has ever raised in a single funding round.

Though the Modi government has publicly encouraged the development of a private, independent, commercial aerospace industry, India’s bureaucracy has generally acted to block this effort. In 2019 it convinced the government to create New Space India Limited (NSIL), a wholly government-owned entity which is designed to retain as much control over commercial market share as possible. As recently as one month ago, the NSIL webpage described itself as aiming to “capture” that commercial market. That revealed its purpose too obviously, so the website was rewritten to now say its goal is to “spur” the Indian aerospace sector.

Because NSIL gets government money and has full control over all of India’s already developed government rockets and space facilities, it has an enormous advantage, which acts to discourage investment in new private companies such as Skyroot. This is a similar situation that existed in the U.S. for more than a half century following Apollo. NASA had the resources, controlled all launches, and thus made private investment for independent companies hard to obtain.

This only changed when NASA began awarding contracts to private companies in 2008, whereby the rockets and spacecraft produced were not owned or designed by NASA. And NASA was only forced to do so because Elon Musk happened to have enough of his own money to finance SpaceX himself.

When ISRO (India’s agency) or NSIL begin awarding contracts like this, then company’s like Skyroot will begin to blossom.

4 comments

SpaceX launches another 51 Starlink satellites and orbital tug

9:47 pm

Capitalism in space: SpaceX tonight successfully used its Falcon 9 rocket to place 51 more Starlink satellites into orbit, as well as a Sherpa orbital tug built by the commercial company Spaceflight.

The first stage completed its seventh flight, landing on a drone ship in the Atlantic. The tug was successfully deployed and will carry a Boeing test satellite for a proposed 147 satellite constellation to its planned orbit.

The leaders in the 2022 launch race:

40 SpaceX
34 China
11 Russia
6 Rocket Lab
5 ULA

American private enterprise now leads China 55 to 34 in the national rankings, and the entire world combined 55 to 52. SpaceX’s 40 launches matches the U.S.’s entire total in 2020, and was only exceeded by the U.S. six times since the dawn of the space age in 1957.

14 comments

NASA to roll SLS back to assembly building, delaying launch by weeks at minimum

3:20 pm

NASA managers today decided they will not attempt another launch of SLS during the present launch window that closes on September 6, 2022, and will bring the rocket back to assembly building for more detailed trouble-shooting.

Engineers not only need to solve the hydrogen fuel leak in a fuel line connection that caused today’s launch scrub, they will also have to replace the flight termination batteries needed in case the rocket has to be destroyed during liftoff because it is flying out of control. These batteries only have a few weeks life, and the launch delays this week caused them to reach their limit.

The next launch windows are either from September 19 to October 4, excluding September 29-30, or October 17 to October 31, excluding October 24, 25, 26, and 28.

At that point SLS’s two solid rocket strap-on boosters will have been stacked for about two years, one full year past what NASA once considered their safe lifespan. The agency has waived that rule for SLS, but waiving it for more than a full year might simply be too risky. If the boosters need to be replaced, that will delay the launch by at least another three months, at the minimum.

Right now the odds remain high this launch will not occur in 2022.

32 comments

Taking Starlink on a vacation sailing trip

11:11 am

A Starlink subscriber to the company’s RV option decided to try it on his sailing boat during a weeklong trip among the Greek islands, and found it worked surprisingly well.

They combined Starlink’s service with cellular connectivity and compared the two while using social media, Google maps, and video streaming. The outcome? Starlink and cellular complimented each other, according to Topolev.

Starlink suffered outages when it was surrounded by other boats’ masts or when the yacht made sharp turns, but worked well at sea, whereas cellular connectivity dropped out when the boat was far from the shore, Topolev said. “It was surprisingly good,” he said. “There were some outages and sometimes we had to manually reboot it … but basically it worked … almost all the time.”

The RV option is specifically for use in moving vehicles, though its use on a boat was not expected to be its prime target customers. Nonetheless, the test suggests strongly that Starlink will work quite well on the big cruise ships, one liner of which, Royal Caribbean, has already signed a deal to make Starlink operational by next year.

5 comments

Ingenuity’s flight plan for its next and 31st flight

10:22 am

Perseverance's location on September 2, 2022
Click for interactive map

The Ingenuity engineering team today released the flight plan for the helicopter’s next flight on Mars, its thirty-first since arrival.

The flight is scheduled for no earlier than September 6, mid-day on Mars, and will travel about one minute to the west for a distance of about 319 feet. The white dot on the overview map to the right shows the approximate landing spot, with the green dot marking Ingenuity’s present position. The blue dot marks Perseverance’s present position as it moves to the south and west after leaving the first delta cliff face it studied during the past few months.

The flight’s main goal is to reposition the helicopter to keep it close to the rover to facilitate communications. However, the engineering team has also now adjusted its goals to also practice hitting very precise landing spots. This goal is to develop the engineering and software that can be used on the helicopter that is not yet built that NASA and ESA intend to use to recover Perseverance’s core samples for return to Earth. That helicopter will not only have to very precisely land right next to those samples in a position allowing it to grab them, it must also land very precisely next to the sample return spacecraft to deposit them within it.

5 comments

China’s Long March 4C rocket launches military satellite

9:55 am

China today successfully used its Long March 4C rocket to place a military Earth observation satellite into orbit.

Launched from an interior spaceport, the rocket’s lower stages thus crashed uncontrolled in China.

The leaders in the 2022 launch race:

39 SpaceX
34 China
11 Russia
6 Rocket Lab
5 ULA

American private enterprise still leads China 54 to 34 in the national rankings, and the entire globe 54 to 52.

3 comments

OneWeb lost $229 million when Russia canceled its launches and confiscated its satellites

9:49 am

On September 1, 2022, OneWeb revealed that Russia’s cancellation of the last six or so OneWeb launches as well as Russia’s confiscation of 36 satellites cost the company $229 million.

Russia’s actions were the response by then head of Roscosmos, Dmitry Rogozin, to sanctions imposed on Russia by the west because of its invasion of the Ukraine. Rogozin’s petty response ended up shooting his space agency in the foot, because it ended up losing billions of dollars in foreign launch business, business that is not likely to return for decades.

OneWeb has since signed contracts with SpaceX, ISRO (India’s space agency), and Relativity for future launches. None of these have been firmly scheduled, though the first by SpaceX is tentatively planned for sometime before the end of the year.

11 comments

SLS test launch scrubbed again

9:18 am

NASA engineers once again were forced to scrub the launch of the SLS rocket today due to another hydrogen leak during fueling.

The launch director waived off today’s Artemis I launch attempt at approximately 11:17 a.m. EDT. Teams encountered a liquid hydrogen leak while loading the propellant into the core stage of the Space Launch System rocket. Multiple troubleshooting efforts to address the area of the leak by reseating a seal in the quick disconnect where liquid hydrogen is fed into the rocket did not fix the issue.

NASA has one more chance, on September 5th, to launch this rocket before it must return it to the assembly building to replace the flight termination batteries, used to abort the launch after liftoff should something go seriously wrong during flight. As I understand it, their use-by date is September 6th, and it would require a major safety waiver by the military range officer, who is entirely independent from NASA and under no obligation to it, to allow for a launch after that date with those batteries.

8 comments
1 … 188 189 190 191 192 … 1,078