Musk sued even as a handful of employees organize to slander him

9:59 am

Musk hate: In the past twenty-four hours, the rising effort to damage SpaceX and Elon Musk by many in our generally petty and envious elitist culture reached new levels, as illustrated by two different stories.

First, it appears a small group of anonymous “woke” employees at SpaceX organized a campaign to publish a letter condemning Elon Musk.

An open letter to company executives was posted in an internal SpaceX Microsoft Teams channel with more than 2,600 employees, the Verge reported on Thursday (June 16). The letter asks the founder of SpaceX and Tesla to change his ways. “Elon’s behavior in the public sphere is a frequent source of distraction and embarrassment for us, particularly in recent weeks,” the letter states.

…”As our CEO and most prominent spokesperson, Elon is seen as the face of SpaceX — every tweet that Elon sends is a de facto public statement by the company,” the letter adds. “It is critical to make clear to our teams and to our potential talent pool that his messaging does not reflect our work, our mission or our values.”

Unlike most corporations today — that routinely kow-tow to such attacks — SpaceX’s management pushed back hard, with the company’s CEO, Gwynne Shotwell, immediately issuing a strong company-wide email condemning the letter and announcing that an investigation has identified several people involved and has fired them. From her email:
» Read more

14 comments

Ariane-6 rocket delayed again

9:27 am

Capitalism in space: The first launch of ArianeGroup’s new rocket, Ariane-6, has been delayed again, and will not launch this year as planned.

The new delay appears mostly related to getting the rocket’s ground systems up and running.

The rocket, being built for the European Space Agency’s commercial division, Arianespace, had originally been scheduled for launch in 2020. Initially the rocket struggled to find customers, because it is not reusable and is thus more expensive. That changed in the past few months with the Ukraine War eliminating Russian rockets as a competitor combined with a new gigantic launch contract from Amazon to launch a large number of its Kuiper satellites using Ariane-6.

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, 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

SpaceX launches another 53 Starlink satellites

9:20 am

Capitalism in space: SpaceX today successfully used its Falcon 9 rocket to launch another 53 Starlink satellites into orbit, initiating a weekend where the company hopes to complete three launches in three days.

At the time of this writing, the satellites had not yet been deployed. The first stage landed successfully on the drone ship in the Atlantic Ocean, completing its 13th flight, a new record. The video of the landing at the link was also one of the clearest yet, with little drop-out or distortion.

The leaders in the 2022 launch race:

24 SpaceX
18 China
8 Russia
3 Rocket Lab
3 ULA

American private enterprise now leads China 33 to 18 in the national rankings, and the entire world combined 33 to 29.

One comment

Firefly founder stepping down as CEO

9:08 am

Capitalism in space: Tom Markusic, the founder of the smallsat rocket startup Firefly, is now stepping down as CEO, apparently forced out by the company’s new investors.

The company said that Markusic would shift from chief executive to a new role of chief technical advisor, effective June 16. He will remain a member of the company’s board and a “significant minority investor” in the company.

The move comes four months after AE Industrial Partners (AEI), a private equity firm, agreed to acquire a “significant stake” in Firefly from Noosphere Venture Partners, which sold its interest in Firefly at the request of the Committee on Foreign Investment in the United States. Noopshere is a fund run by Ukrainian-born investor Max Polyakov. In March, AEI said it was leading Firefly’s $75 million Series B round.

The statement suggested that Firefly’s new owners wanted new leadership for the company as it prepares a second launch of its Alpha rocket. That launch is expected no earlier than mid-July from Vandenberg Space Force Base, nearly a year after the first Alpha launch failed.

Essentially, the two people that created this company and then saved it have been forced outt, largely as a result of federal government demands. Polyakov was forced to sell to AEI by the government because he was not American, and it appears AEI then forced Markusic out.

6 comments

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.

TESS discovers solar system of rocky super-Earths only 33 light years away

9:00 am

Astronomers, using the space telescope TESS, have discovered two rocky super-Earths orbiting a red dwarf star HD 260655, only 33 light years away.

Both planets are “super-Earths” – terrestrial worlds like ours, only bigger. Planet b is about 1.2 times as big around as Earth, planet c 1.5 times. In this case, however, neither world is likely to support life. The temperature on planet b, nearest to the star, is estimated at 816 degrees Fahrenheit (435 Celsius), [while] planet [has a temperature of] c 543 Fahrenheit (284 Celsius), though actual temperature depends on the presence and nature of possible atmospheres.

The star’s nearness as well as the fact that these planets transit across its face means further study can not only determine if they have atmospheres, it can also roughly measure the atmospheres’ make-up.

Leave a comment

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

NASA shuffles crew for first Starliner manned mission

8:48 am

In a press release yesterday, NASA announced the two-person crew that will fly on the first manned mission of Boeing’s Starliner capsule to ISS.

[C]ommander Barry “Butch” Wilmore, whom NASA assigned to the prime crew in October 2020, will join NASA astronaut Suni Williams, who will serve as pilot. Williams previously served as the backup test pilot for CFT [crew test flight] while assigned as commander of NASA’s Boeing Starliner-1 mission, Starliner’s first post-certification mission. As CFT pilot, Williams takes the place of NASA astronaut Nicole Mann, originally assigned to the mission in 2018. NASA reassigned Mann to the agency’s SpaceX Crew-5 mission in 2021.

The crew for this flight, delayed now more than two years, has changed several times. In 2020 astronaut Chris Ferguson dropped out for personal reasons. Then NASA listed the crew as Wilmore, Mike Finke, and Nicole Mann, with Williams then assigned to Starliner’s next mission, its first long term flight to ISS.

With this change, the crew has been reduced to two, and Finke is now listed as a backup should something further change with the prime crew.

The press release made no mention of an actual launch date, though it did say that Boeing and NASA are still reviewing the data from Starliner’s unmanned demo mission:

The Starliner team is in the process of delivering the initial test flight data to NASA and jointly determining forward work ahead of a crewed flight. These engineering and program reviews are expected to continue for several weeks, culminating in a launch schedule assessment at the end of July, based upon spacecraft readiness, space station scheduling needs, and Eastern Range availability.

The goal had been to fly before the end of this year. It appears NASA and Boeing are still pushing to meet that goal.

Leave a comment

Mister Rogers – Garden of Your Mind

6:01 pm

An evening pause: As a kid, I could never stomach Mister Rogers. The most I could ever watch him was about ten seconds before becoming totally bored. Thus, I was initially very doubtful about scheduling this video — until I watched it. It takes the things Rogers said and did and turns it into a really good rap video!

Hat tip Tom Wilson, aka t-dub.

12 comments

Rock growths on Mars!

1:02 pm

Rock growths on Mars!
Click for full image.

Cool image time! The photo to the right was taken by the high resolution camera on the Mars rover Curiosity on May 15, 2022, and shows several incredibly strange vertical fingers of rock that appear to grow out of the ground. From the caption:

These likely formed as groundwater trickled through rock in the ancient past, depositing mineral cements over time; many years later, when the rock was exposed to the atmosphere, wind eroded the softer material around the cemented portions.

This formation explanation of course is only an educated guess. There are other possibilities, suggested by how cave formations grow over time, that are less likely but still must be considered. For example, maybe we are looking at a feature that grew upward as condensation from Mars’ once thicker and wetter atmosphere deposited new material on it over time.

Unfortunately, the image release does not provide a scale. My guess is that the longest finger is between six to twelve inches long, but it could be much smaller.

4 comments

Today’s blacklisted American: Arizona State University blacklists American flag for flags promoting the queer agenda and the evils of America

12:04 pm

American flag banned by Arizona State University
Banned at Arizona State University so that queers and racists could
be celebrated instead

As part of the celebrations this month for the fake holidays Juneteenth and Pride month, Arizona State University decided the American flag must come down and be replaced with flags celebrating the queer agenda and the Marxist and the racist anti-American agenda that Juneteenth represents.

On Wednesday, Turning Point USA founder Charlie Kirk blasted Arizona State University for replacing American flags lining a street with Juneteenth and Pride flags. Kirk posted photos of ASU’s downtown Tempe, Arizona campus, with streets lined with alternating colorful pride flags, and the Juneteenth flag bearing a large star.

“Originally, the flags outside my apartment on campus were all American flags, then, at the start of June following the Memorial Day holiday, they replaced every other flag with pride or ‘progress’ flags.

“About a week later, my two roommates and I watched through our window as one of the American flags was taken down and replaced with a ‘Juneteenth’ flag. By the next morning, all the American flags were replaced by the Juneteenth flags,” said an ASU student who wished not to be named.

Since I guarantee almost none of my readers know what this fake Juneteenth holiday stands for, here is the BBC’s liberal spin:
» Read more

25 comments

First look at the new Starliner flight suit being made by Dover

10:08 am

It appears that the flight suit that the company ILC Dover is making for Boeing’s Starliner manned capsule has been unveiled not by the company but as part of an exhibit at the Kennedy Space Centers’ visitor complex.

Boeing has also signed contracts with two companies to provide two different flight suits.

Announced late last month, Boeing’s choice of ILC Dover’s AES came somewhat out of the blue. The aerospace company had previously selected another spacesuit manufacturer, the David Clark Company, to provide pressure garments for astronauts launching and landing on its CST-100 Starliner capsules.

An example of the David Clark suit, which was first revealed in 2017, has already flown twice to space on Boeing’s two orbital flight tests. Although astronauts have yet to fly on the Starliner, an anthropometric test device (instrumented mannequin) named “Rosie the Rocketeer” was dressed in the suit for the trial missions.

Boeing’s next and, as currently planned, final Starliner test flight will carry a crew, who will also wear the David Clark suit, according to a statement released by the company. The ILC AES will be introduced once Boeing begins flying astronauts on NASA-contracted missions to and from the International Space Station in 2023.

“In the spirit of commercial human spaceflight, we made the decision to bring an additional Starliner spacesuit supplier online to introduce additional redundancy, flexibility and competition for crew accommodations on future flights to low-Earth orbit destinations. We expect to introduce the new suits during operational missions, and are pleased to see the market opening up and allowing more options for Boeing as well as our government and commercial customers,” read the company’s statement.

In my opinion, the graphics at the link of both suits show them both to appear more comfortable and better looking than SpaceX’s Dragon flight suits. That opinion however is just a question of taste and style, and has nothing to do with the suits’ operation or use.

One comment

Russian scientists defy Rogozin, will not reactivate German instrument on Spektr-RG telescope

9:51 am

It appears that the Russian astronomers who use their instrument on the Spekr-RG space telescope are refusing to follow the orders of Dmitry Rogozin to reactivate the German instrument — dubed eROSITA — which the Europeans shut down in response to the Russian invasion of the Ukraine.

[T]he head of the Russian Space Research Institute, Lev Matveevich Zelenyi, spoke out against the unauthorized activation of eROSITA to Gazeta: “Our institute – all the scientists – categorically object to this. This objection is both for political and technical reasons.”

“This is not a Russian device. I can’t judge how realistic this whole thing is, I don’t know if our specialists have processing codes… But even if they have, it will be simply impossible to publish this data – no journal will accept it and will do it right,” he added.

Rogozin however appears adamant about taking over eROSITA. But then again, Rogozin blusters a lot, with many of this worst blusters having no bite behind them.

One comment

Lucy gets a bonus asteroid during its tour of the Trojans

9:44 am

Lucy's planned journey
Click for full image.

While doing observations in March of one of the eight asteroids the Lucy asteroid will visit in the two Trojan asteroid regions fore and aft of Jupiter, scientists discovered it had a companion, thus increasing the total asteroids to be seen close-up by Lucy to nine.

One of the Trojan asteroids on Lucy’s tour, named Polymele, has a companion. Scientists discovered an apparent satellite of Polymele during a ground-based occultation observation in March, when Polymele briefly passed in front of a star, temporarily blocking its light from reaching Earth. The occultation observations were intended to help the Lucy science team determine the shape of Polymele, which only appears as a point of light in telescope images.

“We got a really nice projected shape of Polymele, and then we were very surprised to detect an object about 200 kilometers (120 miles) away from Polymele,” Levison said last week in a presentation to NASA’s Small Bodies Advisory Group. “It’s 5 kilometers (3 miles) in diameter, and it’s sitting almost exactly in Polymele’s equatorial plane.”

Lucy’s science team has temporarily named the object Shaun, after “Shaun the Sheep” in the show “Wallace and Gromit.”

The graphic above, from the Lucy science team, shows the spacecraft’s planned journey during its mission.

Engineers continue their attempts to fully open one of Lucy’s two solar arrays. On June 9th they successfully used the array’s deployment motors again for a short burst to further open the array. The plan is to repeat these short bursts with the hope the array will eventually latch into its intended open position.

Leave a comment

SLS dress rehearsal countdown set for June 20th with launch delayed again

9:28 am

According to NASA officials, the next attempt to complete a dress rehearsal countdown for its SLS rocket will take place on June 20, 2022, with the earliest date an actual launch can occur delayed again, and now set at best for an August 23 to September 6 window.

The article also notes that during a different press conference, NASA administrator Bill Nelson hinted that “there could be slips” in the present target date of ‘2025 for landing humans on the Moon.

Ya think? I guarantee that NASA will not land humans on the Moon in ’25, at least not using SLS. Based on all the issues confronting SLS, as well as NASA’s normal way of doing things, this mission will certainly slip at least one to two more years. And I am being very very very very optimistic.

We must also note that when first proposed by Bush Jr. in 2004, he predicted a NASA manned lunar landing by 2015, which means this launch will be at least one decade behind schedule, with it more likely being later than that.

But then, I can hear our glorious president yelling at me for complaining. “C’mon man! What’s a decade or two when you’re scheduling something important?”

12 comments

Today’s blacklisted American: Biden administration purging conservatives from FBI

1:20 pm

Chris Wray, FBI director and jack-booted thug
Chris Wray, FBI director and jack-booted thug

Blacklists are back and the Democrats have got ’em: According to numerous whistleblowers talking to the office of Congressman Jim Jordan (R-Ohio), the FBI has been aggressively blacklisting any employee who happens to express any conservative opinions at all.

Jordan detailed the most recent actions in a June 7th letter [pdf] to Chris Wray, director of the FBI, which was also a follow-up on another such letter sent in May.

We continue to investigate allegations that the Federal Bureau of Investigation is retaliating against FBI employees for engaging in disfavored political speech. On May 6, 2022, we sent you a letter that detailed examples of the FBI suspending the security clearances of FBI employees for their participation in protected First Amendment activity.1 To date, you have failed to acknowledge our letter or begin to arrange for the requested briefing. Since our May 6 letter, we have received new protected whistleblower disclosures that suggest the FBI’s actions are far more pervasive than previously known. Multiple whistleblowers have called it a “purge” of FBI employees holding conservative views. [emphasis mine]

The earlier May 6th letter [pdf] was even more blunt:
» Read more

14 comments

Curiosity: Into the mountains

11:48 am

Panorama on Mars, June 15, 2022
Click for full image.

Overview map
Click for interactive map.

Cool image time! The journey of Curiosity into the mountains of Gale Crater continues. The photo above, taken on June 15, 2022 by the rover’s left navigation camera, looks straight ahead at one possible route into those mountains.

The blue dot on the overview map to the right indicates Curiosity’s position. The yellow lines show the approximate area covered by the photo, by my estimate. The recurring slope lineae is a streak that comes and goes seasonally, and could be caused by some form of seepage. The marker layer, as indicated by the arrows, is a geological layer found at about the same elevation in many places on the flanks of Mount Sharp.

The red dotted line indicates the planned route of Curiosity, which it is presently striving to return to, having been forced to retreat from the Greenheugh Pediment because of its too-rough terrain.

For scale, Navarro Mountain is estimated to be about 450 feet high. Thus, the peak in the center of the panorama, which I think is the large mesa in the lower right corner of the overview map, is probably twice that height, about 1,500 to 1,700 feet high, and much higher than the two mesas that frame it on either side. Distance and perspective hide this difference.

When Curiosity finally gets inside Gediz Vallis and close to the side of that many-layered mesa, the view should be unbelievably amazing.

The science team has not yet revealed the precise route they plan to take to return to the planned route. While they may aim straight over the saddle in the photo above, I suspect they will instead bear west, following ground that is less steep.

Leave a comment

Our oppressive federal government really does want to squash SpaceX

10:35 am

Targeted by the government for destruction
Targeted by the government for destruction

In order to understand the full context of the FAA’s environmental reassessment of SpaceX’s Boca Chica facility in Texas and its approval of Starship/Superheavy launches there, it is important to take a closer look at the entire document [pdf] that was released on June 13, 2022. While that approval will now allow SpaceX to proceed, the nature of the document shows us that this government permission has been given very reluctantly, and that there are factions in the federal bureaucracy that are working hard to lay the groundwork to block it at first opportunity.

First, what did the reassessment conclude about the impact of future heavy-lift rocket launches at Boca Chica?

In summary, the FAA concluded that SpaceX’s planned operations “would not result in significant environmental consequences.” [emphasis mine] It then proceeded to provide many pages of analysis for each of the following issues, with almost all coming to the same exact conclusion [emphasis mine]:
» Read more

11 comments

OneWeb successfully tests airplane wi-fi using its satellites

10:12 am

Capitalism in space: During an eleven hour test flight, OneWeb has successfully tested the use of its satellite constellation to provide wi-fi service during long international flights.

Flight tests will continue throughout the rest of this year, with certification of the Sidewinder terminal expected in mid-2023. OneWeb expects to launch its new service in the middle of next year. It has so far launched about two-thirds of its 648-strong constellation of satellites.

This puts the OneWeb and SpaceX’s Starlink constellation in direct competition, since both will be offering this service directly to airlines. Thus, for both the airlines and their customers, this competition will likely not only lower price, it will improve service.

4 comments

DNA tests of 800-year-old gravesite in Kyrgyzstan suggest that region was source of Black Death

10:07 am

Based on DNA tests of several 800-year-old graves in northern Kyrgyzstan near Lake Issyk Kul, it appears that the Black Death that first appeared in Europe in the 1300s and killed as much as half its population came from this region initially.

Working with Slavin and Russian collaborators including Valeri Khartanovich of the Peter the Great Museum of Anthropology and Ethnography, where the Issyk Kul skulls were stored, Spyrou extracted DNA from the pulp of seven individuals’ teeth and found three were infected with Y. pestis. She was able to reconstruct a high-quality genome of the ancient strain that killed them. That strain “fell exactly on the origin point of that big bang event” in the evolution of Y. pestis, Spyrou says. “That was incredibly exciting.”

The strain was closely related to ones found in rodents near Issyk Kul today. The authors suggest it spilled over to humans, perhaps from a marmot, which are abundant in the Tian Shan mountain region of northern Kyrgyzstan, southern Kazakhstan, and northwestern China.

What is fascinating most about this discovery is that we actually have the names of some of the Black Death’s first victims, read from their tombstones: ““This is the tomb of the believer Sanmaq. [He] died of pestilence.”

2 comments

South Korea postpones tomorrow’s second test launch of its Nuri rocket

9:57 am

The new colonial movement: Because of unexpected sensor reading in the oxygen tank as the rocket was lifted upright at the launch pad, South Korea has postponed its planned launch tomorrow of its home-built Nuri rocket.

According to KARI [South Korea’s space agency], readings of the oxidizer tank sensor normally change when the rocket is being erected. Readings on Nuri’s sensor, however, did not show any change during the process. “The sensor itself could be problematic, or it could be an issue with the cable or the terminal box,” the official said.

This launch would have been the second attempt to complete an orbital launch, with the first Nuri launch failing in October 2021 when tanks inside the third stage broke free during launch.

Leave a comment

Evidence of explosion in ’21 detected from orbital images of Chinese launchpad

9:46 am

Explosion at Chinese spaceporty
Click for full image.

Using orbital images, an amateur space observer has detected evidence that an explosion had occurred at the Chinese Jiuquan spaceport some time in October 2021.

Evidence of the explosion was discovered by space enthusiast Harry Stranger using imagery from Airbus and CNES and posted on Twitter June 10.

The incident occurred at facilities constructed around 16 kilometers to the southwest of Jiuquan’s two main launch complexes. The pair of launch pads are used by the China Aerospace Science and Technology Corporation (CASC) for hypergolic Long March rocket launches for human spaceflight, civil, military and scientific missions and were unaffected by the blast.

…Further satellite imagery from Planet’s Super Dove satellites seen by SpaceNews indicates that the explosion occurred between 0316 UTC on Oct. 15 and 0407 UTC Oct. 16 (11:16 p.m, Oct. 14 and 12:07 a.m. October 16 Eastern).

At almost exactly the same time China had launched a manned mission from this same spaceport, so the explosion apparently was not related to that launch. Instead, the images suggest that this was related to testing of solid rockets, and could be related as well to the delay in any further launches of the Kuaizhou-11 rocket. According to a press release several months earlier, that rocket was being prepared for a launch by the end of 2021, but no such launch ever occurred.

3 comments

Dragon cargo launch now delayed until July to fix fuel leak

9:32 am

Capitalism in space: Having now identified the source of a toxic hydrazine fuel leak in a Dragon cargo capsule that had been scheduled for launch on June 10th, SpaceX has now delayed the launch until July 11th so that it can fix the leak.

After removing propellant from the vehicle, “SpaceX was able to narrow down the source of the issue to a Draco thruster valve inlet joint,” the agency said. “Teams will now remove the specific hardware to replace it ahead of flight.”

Based on standard SpaceX procedures, it will not only replace this one valve, it will carefully figure out why it failed, and introduce an upgrade to all such valves so that this leak issue is never repeated. Such a policy has generally not been followed with much enthusiasm by older rocket companies in the past half century. The result had been the reappearance of such problems again and again, instead of a slow decline as each was found and eliminated.

Leave a comment

Sierra Space developing crewed version of Dream Chaser; will train astronauts

9:24 am

Capitalism in space: In a press release mostly focused on touting the company’s new project to establish a training center for astronauts, Sierra Space dropped this bigger story:

A crewed variant of the Dream Chaser spaceplane is currently in development and will be operational in 2026, having successfully completed its System Requirements Review (SRR) earlier this month. Orbital Reef will be on orbit and operational in 2027.

Though it was always expected that the company would upgrade the cargo version of Dream Chaser it is presently building, until now it had been made no announcement to that effect. Moreover, until now Sierra Space has functioned much like the old big space companies, doing nothing without a contract from NASA. This effort to build a manned version of Dream Chaser is apparently occurring without any such contract. All Sierra has right now is a contract to launch cargo to ISS.

The astronaut training center fits in nicely with this new manned Dream Chaser, which also fits in nicely with Sierra Space’s partnership to build the commercial space station Orbital Reef.

One comment

Ingenuity successfully completes its 29th flight on Mars

3:51 pm

Ingenuity's 29th flight, estimated

Based on this tweet posted yesterday, Ingenuity has successfully completed its 29th flight on Mars, placing it in “a better communication position with the rover.”

According to the helicopter’s flight log, the flight lasted about 66 seconds, was about 587 feet long, and had a maximum altitude of 33 feet.

On the overview map to the right the green dot marks Ingenuity’s position before the flight. The yellow line is my guess as to the approximate flight path for this 29th flight. In this new position the helicopter is better aligned with the hollow that Perseverance will climb (as indicated by the red dotted line), and will therefore also have better line of sight communications with it.

The flight itself tells us that the engineers have not only gotten the helicopter recharged, they have developed new flight software to compensate for the loss of a sensor that was used to determine Ingenuity’s elevation.

Leave a comment

Today’s blacklisted American: Scientist destroyed because he dated a co-worker

2:35 pm

David Sabatini: Scientist blacklisted

Persecution is now cool! The career and work of a world-renowned molecular biologist scientist David Sabatini has been utterly destroyed because of unproven accusations against him from a co-worker whom he had been casually dating for a short time.

The story at the link is long and detailed, and utterly horrifying. Not only did Ruth Lehmann, the head of the the Whitehead Institute where Sabatini worked and who fired him, never talk to him face-to-face, the report she based her actions on was filled with hearsay and unsubstantiated accusations.

No matter. Sabatini had been accused of sexual harassment, and thus he must be destroyed, without due process or any fair trial.

In the 24 hours after the report came out, Sabatini’s life fell apart. MIT put him on administrative leave. The Howard Hughes Medical Institute, another prestigious non-profit that funds biomedical research and was paying Sabatini’s salary, fired him. He resigned from the Whitehead, and eventually MIT, at the advice of his lawyers who thought it would help him secure his next job. (“I one hundred percent regret that,” Sabatini told me).
» Read more

17 comments

An eccentric debris disk circling a nearby star

11:17 am

Eccentric debris disk around star.

Using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, astronomers have discovered that the debris disk surrounding a star about 60 light years away, discovered in 2006 by the Hubble Space Telescope, is not circular, but instead forms an eccentric ring about the star.

The photo to the right combines the Hubble data (the blue background) and the ALMA data (the orange-yellow ring). The star is the bright spot in the ring, not in its center but at one of the ellipse’s two foci.

This level of eccentricity, MacGregor said, makes HD 53143 the most eccentric debris disk observed to date, being twice as eccentric as the Fomalhaut debris disk, which MacGregor fully imaged at millimeter wavelengths using ALMA in 2017. “So far, we have not found many disks with a significant eccentricity. In general, we don’t expect disks to be very eccentric unless something, like a planet, is sculpting them and forcing them to be eccentric. Without that force, orbits tend to circularize, like what we see in our own Solar System.”

In other words, there must be at least one hidden planet, maybe more, orbiting the star, its gravity forcing the disk into this shape.

2 comments
1 … 239 240 241 242 243 … 1,111