Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

July 7, 2023 Quick space links

5:06 pm

Courtesy of BtB’s stringer Jay.

 

  • Blue Origin to launch Iranian satellite?

    • The article, unfortunately behind a paywall, is about Iran getting an extension from regulators to launch a long delayed communications satellite. Its headline adds “Blue Origin launch in 2024,” which is the real story. As Jay correctly notes, “What on Earth are they talking about? Using Blue Origin to launch an Iranian satellite? Are they out of their minds? Iran is our enemy.” In searching the web, I could only find one hint (which I can no longer find) that Blue Origin offered to do the launch (though it still lacks a rocket to do so), but no indication that any deal with Iran was ever signed.

 

  • China predicts it will reach 70 launches in 2023, a new record

    • With only 24 launches in the first half of the year, China would almost have to do that number twice over in the second half to meet this target. Since it historically has launched at a much higher pace in November and December, this is not impossible, though still difficult.

 

 

  • Europe shifting more launches to SpaceX due to Ariane-6 delays

    • The article lists six payloads that have or will likely switch to the Falcon 9. That’s a lot of money suddenly flowing to SpaceX, from $200 million to $500 million, depending on price per launch. And it is all happening because Europe first denied the importance of reuseability and second moved too slowly in trying to compete. As Jay notes, “SpaceX did not choose to become a monopoly.”

4 comments

Puzzling crater on alien Mars

2:08 pm

Puzzling crater on alien Mars
Click for original image.

Today’s cool image once again illustrates that the things that orbiters photograph on the Martian surface are not always what they seem at first glance. The picture to the right, cropped, reduced, and sharpened to post here, was taken on March 23, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the scientists label as “layering” in this small mile-wide crater.

That layering, seen on both the interior and exterior slopes of its circular rim, is what makes this crater puzzling. It suggests this crater was not formed by an impact, but by volcanism. The layers suggest repeated eruptive events. That the crater sits above the surround plain by about 100 feet strengthens this conclusion.

And yet, a look at the overview map below suggests this conclusion is premature.
» Read more

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SpaceX launches another 48 Starlink satellites

12:39 pm

Using its Falcon 9 rocket, SpaceX today successfully launched another 48 Starlink satellites, lifting off from Vandenberg Space Force Base.

The first stage completed its twelfth flight, landing softly on a drone ship in the Pacific. The two fairing halves completed their fourth and seventh flights respectively.

The leaders in the 2023 launch race:

45 SpaceX
24 China
9 Russia
5 Rocket Lab

In successful launches, American private enterprise now leads China 51 to 24 in the national rankings, while SpaceX by itself leads the entire world combined, excluding American companies, 45 to 42.

8 comments

Taiwan wants and needs Starlink, but local law is blocking a deal

9:46 am

After three years of discussions, negotiations between Taiwan and SpaceX to provide Starlink to that nation broke off in 2022 because of a local Taiwanese law that requires local ownership of at least 51%.

SpaceX would not agree to these conditions, and ended the negotiations. In response, Taiwan has been struggling to get its own communications satellite into orbit, with limited success.

To address that vulnerability, the Taiwan Space Agency (TASA) intends to launch its first self-made low-Earth orbit communication satellite in 2026 and at least one more by 2028, Director General Wu Jong-shinn said. Taiwan also will have rockets capable of carrying payloads weighing over 100 kilograms, he added in an interview.

Since the country doesn’t yet have those rockets, this plan remains dependent on foreign launchers. Moreover, to be effective in low-orbit will require not two satellites but a constellation of 20 to 30. Taiwan is years from being to launch such a constellation.

It seems Taiwan is cutting off its nose to spite its face by not changing this ownership law. Its entire internet access is dependent on 14 undersea cables, and China has already demonstrated the ability to destroy these cables when it cut two in February. No foreign operation is going to give up its ownership to make a deal in Taiwan.

7 comments

Students complete first suborbital launch from new Nova Scotia spaceport

9:37 am

Students today completed the first suborbital launch from the new Nova Scotia spaceport being run by Maritime Launch Services.

The launch was completed by Arbalest Rocketry, a rocketry team from Ontario’s York University. It in turn is part of a nationwide Canadian student program called Launch Canada involving “over 1000 students nationwide from over 25 universities and colleges.”

Maritime hopes to offer both a launchpad and a rocket to satellite companies. It has deals with rocket startups in both the Ukraine and the United Kingdom, whereby satellite companies can come to Martitime and get full launch services.

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Large mass of granite unexpectedly detected on Moon

9:12 am

Using archival data from four lunar orbiters (two American and two Chinese), researchers have unexpectedly detected evidence suggesting the existence of a large 20-mile-wide mass of granite under a lunar volcanic caldera.

“We have discovered extra heat coming out of the ground at a location on the Moon believed to be a long dead volcano which last erupted over 3.5 billion years ago. It’s around 50km across, and the only solution that we can think of which produces that much heat is a large body of granite, a rock which forms when a magma body – the unerupted lava – below a volcano cools. Granite has high concentrations of radioactive elements like uranium and thorium compared to other rocks in the lunar crust, causing the heating we can sense at the lunar surface”.

Except for some small grains found in Apollo lunar samples, granite has not been found anywhere in the solar system except on Earth. This discovery, if confirmed, will strengthen the theory that the Moon was once part of the Earth and was created from the impact of a second large body.

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Update on preparations at Boca Chica for next Starship/Superheavy test launch

9:03 am

Link here. The article provides an excellent review of the extensive work SpaceX is doing, especially in repairing and upgrading the Superheavy launch facility.

Overall, SpaceX is moving fast, suggesting that Elon Musk’s prediction that it will be ready technically to launch in August quite believable. I remain doubtful that launch will happen in August, however, as I fully expect the FAA and the Biden administration will not issue a launch license on time, but will delay it.

8 comments

July 6, 2023 Quick space links

3:57 pm

Courtesy of BtB’s stringer Jay.

 

  • Another Vega-C engine failure during static fire test

    • The test was part of the investigation following a failure of an identical engine during a Vega-C December 2022 launch. This new failure was on an engine that had been upgraded, so the European Space Agency has now begun an independent review. Vega-C will thus not resume launches this year.

 

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Pushback: Non-profit legal firm warns 200 law schools they will be sued if they defy the Supreme Court’s decision ending all racial quotas

12:47 pm

AFL logo
Only one in an army of lawyers willing to
fight for freedom and the Bill of Rights

Bring a gun to a knife fight: One day after the Supreme Court ruled on June 29, 2023 [pdf] that affirmative action was nothing more than outright racial discrimination and that universities must stop using race as a criteria for admitting students or hiring faculty, the non-profit legal firm America’s First Legal (AFL) wasted no time and sent demand letters to the deans of every law school in the United States, numbering 200, warning them to stop these racist policies or it will sue them.

America First Legal’s letter demands that law schools immediately halt these discriminatory and unlawful practices. It further puts the deans of every law school on notice: if they do not stop, America First Legal will bring legal action against them.

The letter to the Harvard University Law School, found here [pdf], is a good sample. In it AFL makes very clear it will immediately take action if this or any other law school develops “an admissions scheme through pretext or proxy to achieve the same discriminatory outcome.”
» Read more

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Swirls draining into a Martian crater

11:59 am

Swirls draining into a Martian crater
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, sharpened, and annotated to post here, was taken on April 8, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The picture shows a terrain of swirls and terraced mesas. Because the shadows are deceptive, I have annotated the picture to show the actual drainage pattern of those swirls, suggesting that whatever material forms these swirls is not only draining about 200-250 feet down into the low point at the picture’s center, the swirls are also draining toward the small 1,000-foot-wide crater in the upper left. That crater however appears to lie on top of the swirls, which means it came after them.

What are the swirls made of?
» Read more

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Scientists claim discovery of most distant supermassive black hole yet

9:28 am

The overwhelming uncertainty of some science: Using data from the infrared Webb Space Telescope, scientists are now claiming they have discovered most distant supermassive black hole yet, sitting at the center of an active galaxy only about a half billion years after the Big Bang. From the press release:

The galaxy, CEERS 1019, existed just over 570 million years after the big bang, and its black hole is less massive than any other yet identified in the early universe. Not only that, they’ve easily “shaken out” two more black holes that are also on the smaller side, and existed 1 and 1.1 billion years after the big bang. Webb also identified eleven galaxies that existed when the universe was 470 to 675 million years old. The evidence was provided by Webb’s Cosmic Evolution Early Release Science (CEERS) Survey, led by Steven Finkelstein of the University of Texas at Austin. The program combines Webb’s highly detailed near- and mid-infrared images and data known as spectra, all of which were used to make these discoveries.

CEERS 1019 is not only notable for how long ago it existed, but also how relatively little its black hole weighs. This black hole clocks in at about 9 million solar masses, far less than other black holes that also existed in the early universe and were detected by other telescopes. Those behemoths typically contain more than 1 billion times the mass of the Sun – and they are easier to detect because they are much brighter. (They are actively “eating” matter, which lights up as it swirls toward the black hole.) The black hole within CEERS 1019 is more similar to the black hole at the center of our Milky Way galaxy, which is 4.6 million times the mass of the Sun. This black hole is also not as bright as the more massive behemoths previously detected. Though smaller, this black hole existed so much earlier that it is still difficult to explain how it formed so soon after the universe began.

I have great doubts about this research, especially because the press release makes no effort to explain how the black holes were identified. Black holes emit no light, and were only first confirmed by watching the orbits of stars or objects near them over long periods of time. More distant supermassive black holes in the center of galaxies were later guessed at by what appears to be the relationship between the size of a galaxy’s nucleus and the presence of a black hole. Astronomers also assume that a very active and energetic galaxy (such as a quasar) is a sign a supermassive black hole exists at the center.

These primitive galaxies have only been observed at most a handful of times. They are so distant that they only are at most a few pixels wide. Spectra from these objects can tell us roughly how far away they are, and thus how close to the Big Bang they are thought to be, but it is impossible to say with any certainty that there is a black hole there.

I am made even more skeptical by this press release claim: “Webb’s data are practically overflowing with precise information that makes these confirmations so easy to pull out of the data.” Such language makes me suspicious that there is an underlying effort to justify Webb’s expense with this release by overstating its capabilities.

The press release provides links to the research. Take a look. I’d be glad if someone could clearly show me why I’m wrong to be so doubtful.

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July 5, 2023 Quick space links

3:58 pm

Courtesy of BtB’s stringer Jay, who trolls Twitter so I don’t have to. For the past few days Twitter links were unavailable to anyone who did not register there. I won’t link to such sites, so we held off doing the daily quick links. It seems that Twitter has reopened access to everyone, though Jay indicates there might still be some issues. If you have difficulty accessing any one of these links, please comment below.

 

 

 

 

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Europe’s Ariane-5 rocket completes its last launch

3:30 pm

The Ariane-5 rocket today successfully completed its final launch, lifting off from French Guiana and placing two communications satellites into orbit.

At the moment Europe has no capability of putting anything into orbit. Ariane-5 is retired. Ariane-6, its replacement, is far behind schedule will probably not make its first test flight until next year. The Vega-C rocket is grounded because of a launch failure in December 2022.

This was only the second launch for Europe in 2023, so the the leader board in the 2023 launch race remains the same:

44 SpaceX
24 China
9 Russia
5 Rocket Lab

In successful launches, American private enterprise still leads China 50 to 24 in the national rankings, while SpaceX by itself leads the entire world combined, excluding American companies, 44 to 42.

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Pushback: Federal judge confirms and shuts down censorship campaign of Biden administration

12:50 pm

The Bill of Rights, cancelled
Cancelled by the Democratic Party led by Joe Biden

Blacklists are back and the Democrats have got “em: On July 4th (an appropriate date), Terry Doughty, chief U.S. district judge of the United States District Court for the Western District of Louisiana, ruled that the evidence clearly showed that the Biden administration, in league with most big social media companies, had been running an aggressive censorship operation against conservatives for the past two-plus years, and issued an injunction banning “numerous top Biden administration officials and agencies from communicating and meeting with social media companies.”

You can read Doughty’s ruling here [pdf]. I strongly urge you to do so, as he is harshly blunt about the ugly actions of the Democrats running the federal government since 2021. His introduction sets the tone, beginning with this quote, “I may disapprove of what you say, but I would defend to the death your right to say it,” and then getting more blunt from there:

This case is about the Free Speech Clause in the First Amendment to the United States Constitution. The explosion of social-media platforms has resulted in unique free speech issues—this is especially true in light of the COVID-19 pandemic. If the allegations made by Plaintiffs are true, the present case arguably involves the most massive attack against free speech in United States’ history. In their attempts to suppress alleged disinformation, the Federal Government, and particularly the Defendants named here, are alleged to have blatantly ignored the First Amendment’s right to free speech. [emphasis mine]

In his detailed review of the history, he begins by listing the number of examples of this attack against free speech by the Biden administration:
» Read more

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Alien Mars

11:19 am

Alien Mars
Click for original image.

Today’s cool image illustrates again the alien geology of Mars, often disguised as geological features that at first glance seem familiar. The picture to the right, cropped and reduced to post here, was taken on April 9, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Its most distinct feature, the mile-wide double crater in the center bottom, at first appears typical of such craters found on the Moon and elsewhere, suggesting that the bolide that caused it broke in two as it cut through the Martian atmosphere.

This double crater however is not like lunar double craters, in that the shape of both craters is deformed, and the deformation is not quite the same in each. Moreover, the crater does not appear to have an upraised rim or to have thrown out any obvious ejecta. Instead, the two objects hit what looks like soft ground, such as when you drop a pebble into snow.

There’s more.
» Read more

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Curiosity’s most damaged wheel appears to be surviving the rough terrain on Mount Sharp

9:46 am

Curiosity's middle left wheel, from November 2022 to July 2023
For original images go here and here.

In today’s download of images from Curiosity was a set of pictures taken by its Mars Hand Lens Imager (MAHLI) of the rover’s wheels, as part of the science team’s routine inspection procedures after every 500 meters of travel.

The picture to the right shows what I think is the rover’s left middle wheel, its most heavily damaged, comparing what that wheel looks like now versus what it looked like in November 2022. At that time five of the wheel’s zig-zag grouser treads were broken, three of which are visible in both pictures. The numbers indicate identical wheel treads.

As you can see, after more than seven months of travel across some of the roughest and rockiest ground so far seen on Mars, no more grousers have broken in the new picture. The plus (“+”) signs indicate places where I think some additional metal between the grousers appears to have broken away, but even here the additional damage appears minimal.

Based on past wheel inspections, I expect more images will be taken in the next day or so. We shall see if those pictures indicate any further damage elsewhere. Based on this new picture, however, it appears that the care the science team takes in picking Curiosity’s route, as well as its software (designed to avoid the worst terrain), is continuing to preserve the wheels from further significant damage.

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Scientists: Quasar data shows time running five times slower in the early universe

8:53 am

The uncertainty of science: According to new research using data from almost 200 quasars collected over the two decades, scientists now believe they have detected the difference between the rate of time now and as we see it in the early universe.

“Looking back to a time when the universe was just over a billion years old, we see time appearing to flow five times slower,” said lead author of the study, Professor Geraint Lewis from the School of Physics and Sydney Institute for Astronomy at the University of Sydney. “If you were there, in this infant universe, one second would seem like one second – but from our position, more than 12 billion years into the future, that early time appears to drag.”

…Professor Lewis worked with astro-statistician Dr Brewer to examine details of 190 quasars observed over two decades. Combining the observations taken at different colours (or wavelengths) – green light, red light and into the infrared – they were able to standardise the ‘ticking’ of each quasar. Through the application of Bayesian analysis, they found the expansion of the universe imprinted on each quasar’s ticking.

“With these exquisite data, we were able to chart the tick of the quasar clocks, revealing the influence of expanding space,” Professor Lewis said.

These results further confirm Einstein’s picture of an expanding universe but contrast earlier studies that had failed to identify the time dilation of distant quasars. [emphasis mine]

I have highlighted the word “exquisite” because it is a favorite buzzword of scientists when they are trying to oversell conclusions that carry many uncertainties. As good as this data might be, it is still incredibly sparse, and the interpretation of it requires many assumptions.

Nonetheless, these results are likely correct, in some manner, because they match well with Einstein’s predictions. It is also most likely that there are many errors and incorrect aspects to those results that the scientists do not yet understand. Above all, confirmation bias remains a concern.

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South Korea: North Korean spy satellite of “no military utility”

8:36 am

Having completed its salvage operations to recover rocket and satellite remains from North Korea’s failed launch on May 31st, the South Korean military today revealed that the satellite had “no military utility as a reconnaissance satellite.”

As expected, it also provided few details to back up that claim:

The JCS [South Korea’s joint chiefs of staff] did not detail the findings through the allies’ analysis of the wreckage nor did it disclose any photos of the retrieved part of the satellite. Last month, a Seoul official struck a cautious note, insinuating that disclosing all the information the military gleaned from the salvage operation would rather benefit the North Korean military.

It is likely true that the North Korea satellite was of limited value, but it is also true that secrecy and disinformation works to the advantage of South Korea’s military. We therefore would be wise to remain skeptical about any of its claims, one way or the other.

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Instrument designed to detect lightning releases first data

9:41 am

Lightning over Europe
Lightning over Europe. Click for original movie.

The first data from the Lightning Imager launched in December 2022 on Europe’s Meteosat weather satellite has now been released, the images compiled into movies showing lightning activity across Europe, Africa, the Middle East and parts of South America.

While the animations are a first initial result from the Lightning Imager, the Meteosat Third Generation Imager is currently undergoing its commissioning phase during which the instruments are calibrated and the data is validated. Data from the Lightning Imager will be available for operational use in early-2024 at an increased sensitivity.

You can see all the movies here. The lightning is found almost exclusively over land. In fact, you can see the lightning in one storm vanish as the storm drifts out into the Mediterranean.

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More evidence found suggesting supernovae occurred near the solar system during its formation

9:22 am

Scientists have now detected more evidence that suggests a supernovae occurred very close to our solar system during its early period of formation.

Astronomers have for decades found such evidence inside meteorites. Small spherical inclusions called chondrules are thought by some to have formed when the heat of a nearby supernova caused melting. The new study finds more evidence in isotopes also found in primitive meteorites dubbed short-lived radionuclides (SLRs).

While SLRs probably existed in the part of the filament where the Sun and Solar System formed, the meteorite samples contained too much of a particular aluminum isotope for the interstellar medium to have been the Solar System’s only SLR source. Cosmic rays, which can convert stable isotopes to radioactive ones, had a better chance of explaining the number of isotopes found in the meteorites. However, it would have taken too long for this process to produce the levels of SLRs found in the early Solar System.

It is most likely that such high SLR levels could have come from either very intense stellar winds, which would have occurred during massive star formation, or from what was left after one of the massive stars went supernova.

You can read the published paper here.

If true, this data adds weight to the possibility that our solar system is somewhat unique, which in turn suggests finding just another like it — with life — might be difficult.

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SpaceX and FAA seek dismissal of lawsuit against Starship at Boca Chica

9:01 am

Both the FAA and SpaceX have now submitted their response to the lawsuit filed by the Center for Biological Diversity (CBD) and other environmental and leftist political groups, requesting a dismissal of their lawsuit demanding no more launches at Boca Chica until the federal government completes a new environmental impact statement.

In a filing Friday, the FAA said the groups lack legal standing for their claims against the agency that granted a launch license to SpaceX’s Starship rocket program. Separately, a SpaceX filing said the first Starship launch on April 20 provided no cause for the FAA to conduct a new environmental assessment, a process that could halt further test launches for years. “For the foregoing reasons, defendants request that the court dismiss the complaint in its entirety,” Todd Kim, assistant attorney general for the environment and natural resources division of the U.S. Department of Justice, wrote in the filing in U.S. District Court in Washington, D.C.

In a sane world, this lawsuit would have been thrown out of court almost instantly. There is no evidence the test launch of Starship/Superheavy caused any environmental damage. Furthermore, launches from Cape Canaveral for the past seven decades have proven this fact repeatedly.

We no longer live in a sane world. There is no guarantee the court will rule in favor of the FAA or SpaceX.

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Parker completes 16th orbit of the Sun

8:53 am

On June 22, 2023 the Parker Solar Probe completed its 16th close approach to the Sun, passing within 5.3 million miles of the solar surface while moving at 364,610 miles per hour.

The mission team at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, noted the close approach was preceded by a small trajectory correction maneuver (TCM) on June 7 —​ the first course correction since March 2022. Mission Design and Navigation Manager​ Yanping Guo of APL said TCMs are performed periodically to ensure that the​ spacecraft remains on course, and the latest maneuver kept Parker on track to hit the “aim point” for the mission’s sixth Venus flyby on Aug. 21. ​

With each perihelion now, Parker sets new records of speed. No human spacecraft has ever flown so fast.

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A Martian volcanic ash field covering an ancient lava flow

12:38 pm

A Martian volcanic ash field covering an ancient lava flow
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on April 16, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows in the center an ancient tongue of lava flow that is surrounded by thick dust fields on the north and the south.

The arrow indicates the downhill grade. It also shows the direction of the prevailing winds, downhill to sculpt the volcanic ash into long streamers of parallel grooves, with obvious eddies forming around bits of older lava that still stick up through the ash. On the lava flow can also be seen one small volcano cone, on the picture’s right edge, suggesting that either during this flow or after it hardened magma bubbled up from below.

The location is fascinating, and in fact puts this picture into its much more spectacular context.
» Read more

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A spiral galaxy as seen by Hubble

9:40 am

A spiral galaxy as seen by Hubble
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken as part of a research project to use the Hubble Space Telescope to photograph galaxies where supernovae had recently occurred. From the caption:

UGC 11860 lies around 184 million light-years away in the constellation Pegasus, and its untroubled appearance can be deceiving; this galaxy recently played host to an almost unimaginably energetic stellar explosion.

A supernova explosion — the catastrophically violent end of a massive star’s life — was detected in UGC 11860 in 2014 by a robotic telescope dedicated to scouring the skies for transient astronomical phenomena; astronomical objects which are only visible for a short period of time. Two different teams of astronomers used Hubble’s Wide Field Camera 3 to search through the aftermath and unpick the lingering remnants of this vast cosmic explosion.

This Hubble image once again illustrates the vastness of the universe. Note that every single dot surrounding UGC 11860 in this picture is another far more distant galaxy. As much as UGC 11860 is in our local intergalactic neighborhood, it is still so distant that this field of view is small enough that it contains no stars.

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Another flying car gets FAA approval for flight testing

9:10 am

Aska-5 flying car
The Aska-5 flying car

The FAA has approved another flying car for flight testing, this time for a flying car designed to also be able to do vertical take-offs if necessary.

The Aska A5 … has four wheels and four seats. Like the Klein Vision [another flying car proposal], it can take off on a runway if there’s one available. Unlike the Klein Vision, it can also takeoff on a very short runway, or indeed no runway at all, thanks to an electric VTOL [vertical take-off and landing] system that folds out at the touch of a button. And unlike, say, the Xpeng AeroHT [a different flying car proposal], it’s capable of transitioning to efficient, winged cruise mode to expand its range.

The A5 will look fairly ridiculous driving down the road, all propellers and struts, a clog with a dishrack full of cutlery piled on top. But when the main rear wing and canard fold out, it all makes a lot more sense. There are six large propellers, four at the back, two at the front, and in VTOL operations these will lift the Aska off the ground and allow it to hover. For forward flight, the two inner rear propellers can tilt forward, allowing horizontal thrust in cruise mode with the rest of the props switched off and the car’s weight supported by its wings.

The proposed price tag for the Aska-5 is presently just under $800K, though it will be a while before you can buy one. The company says it is doing both driving and flight testing, but provided no images or data of it in the air. Thus, a lot of work remains before you could climb in, drive from your home to an airport and take off.

The company says it has $50 million in preorders. If so, at least 50 people think this might be the real deal.

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ISRO aborts first static fire test of prototype of a new upper stage rocket engine

8:51 am

According to India’s space agency ISRO, on July 1st engineers were forced to abort the first static fire test of prototype of a new upper stage rocket engine, planned to last 4.5 seconds but stopped after 1.9 seconds.

The test proceeded as predicted till 1.9 s validating the ignition and subsequent performance of PHTA [Power Head Test Article]. At 2.0 s, an unanticipated spike in the turbine pressure and subsequent loss of turbine-speed was observed. As a precautionary step, the test was terminated. Analysis under progress would offer further understanding before proceeding with further hot-tests for longer duration.

This was not a test of a real rocket engine, but an engineering test prototype, designed “to validate the integrated performance of the critical subsystems such as the gas generator, turbo pumps, pre-burner and control components.” That the test showed issues without exploding is actually very good news. Engineers still have the prototype to quickly figure out what went wrong and fix it.

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Ingenuity responds after 63 days of silence

12:02 pm

Overview map
Click for interactive map.

For the past two months the science and engineering teams for the Perseverance rover and the Ingenuity helicopter in Jezero Crater have been very silent as to the status of Ingenuity. On April 25, 2023 the Ingenuity team had posted their flight plan for the helicopter’s 52nd flight, with an expected flight date the next day.

Until today, however, no information about the results of that flight had been released. Except for one update in late May describing earlier issues with communications after flight 49, the science and engineering teams maintained radio silence about that 52nd flight in April.

Today’s update finally explained that silence:

The flight took place back on April 26, but mission controllers at NASA’s Jet Propulsion Laboratory in Southern California lost contact with the helicopter as it descended toward the surface for landing.

The Ingenuity team expected the communications dropout because a hill stood between the helicopter’s landing location and the Perseverance rover’s position, blocking communication between the two. The rover acts as a radio relay between the helicopter and mission controllers at JPL. In anticipation of this loss of communications, the Ingenuity team had already developed re-contact plans for when the rover would drive back within range. Contact was re-established June 28 when Perseverance crested the hill and could see Ingenuity again.

The flight plan for the 52nd flight in April had been to fly 1,191 feet to the west. Though the Ingenuity team has not yet released the actual flight details, I have indicated with the green line on the overview map above the estimated distance and direction planned. The green dot marks Ingenuity’s position before the flight, with the blue dot marking Perseverance’s present location. The red dotted line indicates the planned route for Perseverance.

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Galaxies at the dawn of time

10:40 am

Link here. The article takes a quick look at six galaxies found by Webb’s infrared view that all less than 650 million years after the Big Bang is thought to have occurred.

None disprove the Big Bang. All however raise serious questions about the cosmological theories that posit that event and the subsequent evolution of the universe. Take a look. It is worthwhile reading.

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SpaceX launches Europe’s Euclid space telescope

9:26 am

SpaceX this morning successfully launched Europe’s Euclid space telescope, designed to map the spatial distribution of several billion galaxies across one third of the sky.

The first stage successfully completed its second flight, landing on a drone ship in the Atlantic. The two fairing halves completed their first flight.

This ESA science mission would have normally been launched on an Arianespace rocket, but Europe’s ability to launch anything now is nil, as it is about to retire its Ariane-5 rocket (with one launch left) and has so failed to get its replacement, Ariane-6, operational. As such, SpaceX got the business, since it is the cheapest and most reliable alternative.

The leaders in the 2023 launch race:

44 SpaceX
24 China
9 Russia
5 Rocket Lab

In the national rankings, American private enterprise now leads China in successful launches 50 to 24, and the entire world combined 50 to 41, with SpaceX by itself leads the entire world, excluding other American companies, 44 to 41.

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