Category: Points of Information

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

Launch abort for Starship high altitude flight

4:03 pm

Starship at T-1 second on launch pad
Screen capture from SpaceX live feed at T-1 second.
Click for LabPadre live stream.

The attempt today by SpaceX to fly its eighth prototype of Starship to 40,000 feet aborted at T-1 second, apparently because the rocket’s computers sensed something wrong and shut things down.

They have stood down for the day. At the moment there is no word on when they will try again, though they have a back up launch window for tomorrow, and SpaceX’s policy generally is to move forward quickly. The decision will likely depend on the reasons for the abort. I will bet they will try again tomorrow.

I have revised the the live feed post, removing references to today’s launch abort, since this information is now contained in this post. The live feed post however will remain at the top of the page.

Leave a comment

Update on audit of Dominion tabulators in Michigan county

2:18 pm

Link here. Because of a lawsuit by a local citizen of Antrim County in Michigan, challenging the results of the vote count there, the court had granted that citizen access to the Dominion tabulator machines to obtain their data and do a full audit of the manner in which those machines counted the vote.

The article describes the effort to get that data, including the failed attempt by one local official to delay or block it. To protect the machines, citizens volunteered to stand guard for an entire weekend to make sure they were not tampered with before the lawyers and their software experts could access them.

The result?

After 8 hours, the collection was complete. With 16 CF cards (similar to SIM cards), 16 thumb drives, and forensic images of the Dominion voting machines in hand, the IT team was escorted to the local Antrim County Airport by two Antrim County Sheriff vehicles, where they boarded their jet plane with evidence in hand.

Two of the patriots followed attorney Matthew DePerno for at least half of his long drive home. Like many Americans, these patriots simply wanted to ensure the safety of a man who has risked so much to protect our right to free and fair elections.

Mr. DePerno expects to have the results of the study sometime tomorrow. He explained the forensic images of the thumb drives and the master computer would tell if machines were connected to the internet—and if they were, who were they communicating with? DePerno said the examination would be able to determine the algorithms used by the computer and will provide the number of ballots read through the machine compared to the actual number of paper ballots.

Every American should be demanding this be done with every computer tabulator nationwide, if only to reassure Americans that the vote was not faked by computer trickery.

That an unelected county official resisted such an audit however is very suspicious and indicates his incompetency. Regardless of how the audit comes out, this man, Peter Garwood, should be removed from office immediately. He does not appear to be properly representing the citizens. If he was, he would have gladly cooperated.

4 comments

Landslides on the edge of Mars’ youngest lava field

1:52 pm

Landslides on the edge of Mars' youngest lava field
Click for full image.

Cool image time! The photo to the right, cropped to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on September 28, 2020. It shows several indentations in a north-south cliff face, with debris apparently falling down into a flat plain to the east.

The scientific history of this picture is very interesting. The first photo of these landslides was taken in 2006 and was titled, “Landslides on Flat Topography in Elysium Planitia”. The second, taken a few months later in 2007 to produce a stereoscopic view, was labeled “Landslides Along Shoreline in Elysium Planitia.” This most recent 2020 image is merely labeled “Landslides in Elysium Planitia.”

Is the flat terrain to the west a seabed to an ancient ocean, as suggested by the title for the 2007 image, with these landslides erosion caused in the far past by water lapping up against these cliffs?
» Read more

2 comments

About 300K excess deaths in 2020 based on untrustworthy CDC data

9:34 am

Two different analyses today took a closer look at the Johns Hopkins report last week that claimed there were no excess deaths in 2020, despite the COVID-19 epidemic.

Though I remain unconvinced that the Wuhan virus is the plague that the fear-mongers keep claiming, the first story makes a good argument, using CDC statistics, that there have been excess deaths in 2020, though this same analysis makes no claim as to the cause of those excess deaths. The conclusion:
» Read more

53 comments

SpaceX’s Starlink constellation wins $885 million in federal subsidies

8:44 am

Capitalism in space: In awarding $9.2 billion in subsidies to providers of rural high-speed internet to rural customers, the FCC gave $885 million of this allocation to SpaceX’s Starlink constellation.

SpaceX was not the biggest beneficiary, however.

Most of the RDOF Phase I subsidies are going to terrestrial broadband service providers, led by LTD Broadband with an award of $1.32 billion. CCO Holdings, a subsidiary of Charter Communications, is due to serve 1.05 million sites around the country, leading the list for that metric.

The FCC said 85% of the 5.2 million sites to be served would get gigabit-speed broadband. SpaceX is due to serve nearly 643,000 sites with download speeds of 100 megabits per second or more.

Regardless of its good intentions, this distribution of federal cash sickens me. These companies don’t need it to do what they are doing, and are all sure to make plenty of profit without it. The federal government meanwhile is trillions in debt. It has to print money to give this away, something that is not going to go well in the long run.

11 comments

Chang’e-5 ascender sent to crash on Moon

8:37 am

The new colonial movement: Even as the Chang’e-5 orbiter/return capsule awaits its window for leaving lunar orbit, Chinese engineers have separated the ascender capsule that brought the samples from the surface and sent it to crash on the Moon.

This decision makes sense, as lunar orbits tend to be unstable, and to leave the ascender there after the orbiter and return capsule leave could make it a piece of uncontrollable space junk threatening future missions.

The engine burn that will send the orbiter/return capsule back to Earth is expected early December 12th, with the return capsule landing in China on December 16th.

Leave a comment

Scientists find method to store natural gas as a solid

8:25 am

Scientists at the National University in Singapore have found a way to quickly convert natural gas into a solid that is much safer to store while using far less space.

The end product is much more convenient and safer to store and transport. As a block of ice it’s shrunk in volume by 90 times, and is non-explosive and stable enough to be stored in a regular freezer at -5 °C (23 °F). The new method also apparently requires less toxic additives than usual.

It also takes only 15 minutes to convert. Essentially, the natural gas is chemically contained within a block of ice. The video at the link explains the entire concept nicely.

3 comments

Chuck Yeager, 1923-2020

9:48 pm

R.I.P. Chuck Yeager, the first man to fly faster than the speed of sound passed away today at the age of 97.

A World War II flying ace, Gen. Yeager achieved his greatest fame by flying on Oct. 14, 1947, the experimental Bell X-1 at the speed of sound, Mach 1, in level flight at 45,000 feet — the first man to do so.

The achievement was not announced to the public though until June 1948 for security reasons.

Yeager epitomized the greatest generation, flying in combat in World War II, and commanding fighter squadrons in both the Korean and Vietnamese wars. More significantly, his 1947 supersonic flight was achieved with two broken ribs, caused when he fell from a horse the week before. He told none of his commanders, and flew anyway.

14 comments

Terby Crater and its drainages into Mars’ basement

1:59 pm

Channels in Terby Crater on Mars
Click for full image.

Cool image time! Over the past few years, in my endless rummaging through the archive of high resolution images from Mars Reconnaissance Orbiter (MRO) I have posted a lot of photos of meandering channels of all kinds, most of which evoke to Earth eyes canyons eroded by flowing water. (This September 2020 cool image is just one of the more recent examples.)

Today’s cool image is another example, but in this case it is only a very small part of a very large drainage basin that is more than a hundred miles across and extends at least that far southward into the basement of Mars, Hellas Basin, the place on Mars with the lowest elevation.

The photo to the right, rotated and reduced to post here, was taken on September 12, 2020 by the high resolution camera on MRO. I normally wouldn’t post the whole image, but to crop it would mean you wouldn’t get the sense of extensive nature of this drainage. Downhill is to the south. The channel apparently passes through three or four stages. First, its northernmost section is in a wide canyon, the floor of which resembles glacial debris (though with a latitude of 27 degrees south this is a bit too close to the equator for ice). More likely we are looking at wind-blown sand and dunes being pulled downhill in the floor of the canyon.

This first canyon is also actually a gap in the rim of a 13-mile-wide unnamed crater. See this MRO context camera image for a wider view.

Next, the drainage becomes a series of meandering small interweaving channels, resembling the channels often seen in beach mud as the tide goes out.

Finally, the channels head into a gap to fall over a sloping cliff into lower terrain.

Nor these stages entirely linked. The first glacial-like stage exiting the gap in the crater appears to drain to the southeast, while the second seems to emanate from what appears to be a very faint small crater now partly buried. Both head south toward the gap, but the path of the eastward drainage appears less obvious. Some of it flowed westward to join the meandering channels but some also appears to work its way south more to the east.

This one image shows a lot of channels, but it is only a very small slice of this whole drainage system. In fact, we are looking here at only one strip of the interior slope of the northern rim of 108-mile-wide Terby Crater.

The overview map below gives the larger context. Terby Crater sits on the northern border of Hellas Basin, which in itself extends another 1,500 miles to the south. From this point the drop in elevation into Hellas is almost four miles.
» Read more

Leave a comment

A new hard aluminum alloy resistant to space radiation?

11:33 am

According to this press release, engineers have developed a new hard aluminum alloy that is also resistant to the high radiation seen in space, which in turn could make this lighter-than-steel metal practical for spacecraft.

Making spacecraft from aluminium is one solution, as aluminium is a light yet strong material. Alloys help aluminium become harder via precipitation strengthening, but the radiation encountered in space can dissolve the hardening precipitates with potentially disastrous and fatal consequences for astronauts.

But the research carried out at MIAMI-2 in partnership with Montanuniversitaet Leoben (MUL) in Austria has discovered that a particular hardening precipitate of a new aluminium alloy – developed by a group of metallurgists led by Professor Stefan Pogatscher (MUL) – does not dissolve when bombarded with particle radiation when compared with existing data on irradiation of conventional aluminium alloys.

If I understand this, traditional aluminum alloys have not been useful for building spacecraft because they cannot withstand the radiation of space. This alloy appears to solve this problem.

I would be interested in hearing what the space engineers in my readership think.

5 comments

Newsom’s new lockdown in California triggered by totally normal numbers

10:01 am

The new lockdown edicts by California’s governor and petty dictator, Gavin Newsom, were triggered by numbers that are routine and have been for decades.

When California Governor Gavin Newsom set his 85% ICU capacity “trigger” to automatically start a new round of totalitarian lockdowns, he had zero doubt the number would be reached in December. How? Because that number is reached EVERY December. Knowing this, why wouldn’t he prepare by assisting hospitals across his state to increase ICU capacity?

…In any given year, most parts of California reach 90% ICU capacity in December. This is usually due to the surge in flu cases, but the flu is allegedly non-existent this year, replaced on paper by the more lucrative COVID-19 diagnoses preferred by hospitals. They knew it was coming, which is why they made moves separate from the state to increase ICU capacity.

In other words, the total number of cases in California’s hospitals is actually at this moment below, or at least completely normal. The only difference is that there are no flu cases. Instead, hospitals are claiming they are all COVID-19.

The lockdowns are there for only one purpose: To strike fear into the hearts of ordinary people, and to expand the power of the government, in complete violation of the entire Bill of Rights.

Welcome to fascist America.

7 comments

Weather delays Starship hop to December 8th; Musk arrives in Boca Chica

9:38 am

Starship on launch pad
Click for LabPadre live stream from which this still was captured.

Capitalism in space: Weather issues have delayed the first big hop of the eighth Starship prototype so that it is now scheduled for no earlier than tomorrow, December 8th.

That Elon Musk arrived in Boca Chica late on December 5th strongly suggests however the hop will finally happen this week, after several weeks of delays.

With Musk himself now on the ground in Texas to (presumably) oversee Starship SN8’s debut, the odds of launch later this week are arguably much better. Having now spent more than 10 weeks at the launch pad, at least twice as long as any Starship preceding it, there’s no small chance that SN8 – the first prototype of its kind – is starting to be more of a nuisance than an asset. By all appearances, Starship SN9 – essentially a “refined” copy of SN8 – is practically ready for launch with SN10 perhaps just a week or two behind it.

It also appears they have lowered the top planned altitude of the hop from 50,000 feet to about 40,000 feet.

Musk had tweeted earlier that SpaceX planned to live stream the event, which would be spectacular as they almost certainly have cameras on the spacecraft. If they don’t the LabPadre live stream above will also be an option.

6 comments

Redwire successfully 3D prints ceramic parts in space

9:22 am

Capitalism in space: Redwire announced today that it has successfully for the first time 3D printed several ceramic parts in space on ISS.

The commercially developed in-space manufacturing facility successfully operated with full autonomy using additive stereolithography (SLA) technology and pre-ceramic resins to manufacture a single-piece ceramic turbine blisk on orbit along with a series of material test coupons. The successful manufacture of these test samples in space is an important milestone to demonstrate the proof-of-potential for CMM to produce ceramic parts that exceed the quality of turbine components made on Earth. The ceramic blisk and test coupons will be stowed and returned to Earth for analysis, aboard the SpaceX Dragon CRS-21 spacecraft. CMM, developed by Redwire subsidiary Made In Space, is the first SLA printer to operate on orbit.

The replicators of Star Trek are coming. The real ones won’t be like the ones in the television show, nor will they be used to produce food, but they are coming nonetheless. It is quite likely that the colonization of space will demand a revolution in 3D printing that will make it possible for almost all heavy industry manufacturing.

Leave a comment

Audit of Dominion machine found it routinely shifted votes to Biden

10:30 am

UPDATE: More information here. This does appear legitimate, and now demands that every Dominion tabulator nationwide be tested with a microscope.

Original article:
—————————
According to this Twitter thread today, officials in Ware County, Georgia, fed an equal number of votes for Trump and Biden into a Dominion tabulator, which then produced a 26% lead for Biden.

37 Trump votes used in the equal sample run had been “Switched” from Trump to Biden. In actual algorithmic terms this means that a vote for Trump was counted as 87% of a vote and a vote for Biden was counted as 113% of a vote.

Those conducting the test were so shocked that they ran the same ballots again. The same results appeared.

Caveats: This is a Twitter feed, whose claimed source is a Republican official from a different county in Georgia. Normally based on this I would not post, but the story is so shocking I thought it necessary. If true, then the elections in every state that used Dominion Machines is suspect. We will have to await confirmation however.

For those who wish to look the other way, please stop being so naive. If there is any truth to this, who cares how courts rule or states certify? The election was stolen, and a Biden presidency would begin as a lie. This story should get your blood boiling with a passionate desire to find out if it is true.

UPDATE: This Twitter feed includes some corroborating information, including a link to an independent story describing these results in the Georgia Star.

67 comments

SpaceX successfully launches Dragon freighter to ISS

9:31 am

Falcon 9 launches Dragon freighter to ISS

Capitalism in space: SpaceX today successfully launched for the first time its upgraded Dragon freighter to ISS.

The first stage was flying its fourth flight, and successfully landed on the drone ship in the ocean. This was also SpaceX’s 100th successful launch of its Falcon 9 rocket, with about two-thirds of those flights using a used first stage.

In the cargo was also the first privately built equipment airlock, built by Nanoracks for its use in launching private payloads. This will supplement the Japanese equipment airlock on its Kibo module, both used to move equipment (not people) in and out ISS. Dragon will dock with ISS tomorrow.

The leaders in the 2020 launch race:

32 China
23 SpaceX
13 Russia
5 ULA
5 Rocket Lab
5 Europe (Arianespace)

The U.S. now leads China 36 to 32 in the national rankings.

12 comments

NASA considering commercial communications satellites for Mars

9:10 am

Capitalism in space: NASA officials have revealed that they are considering hiring commercial communications companies to build and launch a communications network of satellites to support its Mars science missions.

In recent presentations to advisory committees, NASA officials have discussed the possibility of working with industry to place several satellites into orbit around Mars that would serve as relays for other missions, notably the proposed Mars Ice Mapper. Such satellites, they said, could greatly increase the amount of data missions can return to Earth and end reliance on aging science missions that also serve as data relays.

One proposal presented at those meetings features three satellites in equatorial orbits at altitudes of 6,000 kilometers. The satellites would be equipped with radio links for communicating with other spacecraft in orbit and on the surface as well as to and from Earth. The satellites may also include laser intersatellite links to allow them to communicate with each other.

Based on the number of missions ongoing and planned for Mars, the agency has recognized it needs to establish a dedicated system for communicating with those missions, rather than depending on the science orbiters they have in orbit. That they are looking to commercial companies to build this for them, with NASA acting merely as a customer, as an excellent sign that the agency has now completely accept this approach, as I recommended in Capitalism in Space, rather than acting as the big boss that controls everything.

Leave a comment

China launches military surveillance satellite

8:55 am

China yesterday launched a military surveillance satellite using its Long March 3B rocket.

No word on whether the first stage or its strap-on boosters landed on any homes, or whether they had grid fins for better controlling their descent, as China has tested previously.

The leaders in the 2020 launch race:

32 China
22 SpaceX
13 Russia
5 ULA
5 Rocket Lab
5 Europe (Arianespace)

The U.S. still leads China in the national rankings, 35 to 32. That lead will hopefully widen in less than an hour with the first SpaceX launch of its second generation Dragon cargo freighter to ISS.

One comment

Chang’e-5 sample capsule docks with return vehicle in lunar orbit

8:37 pm

According to the official Chinese state-run press Chang’e-5’s capsule containing samples from the Moon has successfully rendezvoused and docked with its return vehicle in lunar orbit, the first time an unmanned craft has done such a thing autonomously.

The news report at this point provides no other details, other than to state that the return capsule and orbiter will next separate from the ascent capsule and “wait for the right time to return to Earth.” Earlier reports had suggested an arrival on Earth around December 16, which would suggest an exit from lunar orbit in about a week.

5 comments

Arizona House Speaker refuses to recall legislature to choose electors

4:03 pm

The election has been stolen: Rusty Bowers, Arizona Republican House Speaker, has now categorically declared that he “cannot and will not” recall the legislature to review the election results and choose electors based on that, despite the Constitution’s clear language that gives the state legislature that full power.

He noted that such an action would violate the oath lawmakers took to uphold the U.S. and Arizona Constitutions, along with, “the basic principles of republican government and the rule of law if we attempted to nullify the people’s vote based on unsupported theories of fraud. Under the laws that we wrote and voted upon, Arizona voters choose who wins, and our system requires that their choice be respected.”

Bowers did, however, support an audit of the voting machines in Maricopa County to assuage concerns of tampering, but that call wasn’t taken up by Republican county officials who run elections.

So what will Bowers do if that audit discovers enough vote tampering and cheating to make the entire election suspect and unreliable? Will he, as so many Republican leaders do over and over, shake his head, whine how terrible it is, but he can do nothing? That’s what Republican leaders have been doing for decades, which of course now brings us to this moment.

Note too that Bowers is entirely wrong. Though it is traditional to let the voters decide, the actual words of the Constitution puts the decision with the state legislature. Period. It is Bowers’ responsibility by law to act.

If he does not use his power, as outlined in the Constitution (which by the way is the supreme law of the land), do not expect many Republicans to be elected in future years. First, Democrats are basically being told they have carte blanche to cheat, and cheat they will. It is also clear that the Republican leadership in the state house seems totally sanguine about the way the vote was run, and will likely do nothing to fix it come the next legislature. It took enormous pressure to get Bowers to even request this one audit of Maricopa County. He really does not appear very interested in identifying the problems and fixing them.

Second, why should anyone vote for any Republican, when it is clear they will not do anything?

With the last bit of optimism I have left, below are the phone numbers for the Republican leadership in the Arizona state legislature. If you live in Arizona, call them and tell them they are abdicating their responsibility as lawmakers. More importantly, tell them they are contributing to the fall of the American democracy by their inaction.

  • Senate President: Karen Fann, 602-926-5874
  • Senate Majority leader: Rick Gray, 602-926-5413
  • Speaker of the House: Russell Bowers, 602-926-3128
  • House Majority leader: Warren Petersen, 602-926-4136
15 comments

Hayabusa-2’s samples from Ryugu land in Australia

2:07 pm

The return capsule carrying the asteroid samples grabbed by Hayabusa-2 from Ryugu successfully parachuted down in the outback of Australia today.

Officials from the Japan Aerospace Exploration Agency, or JAXA, confirmed shortly after 1 p.m. EST (1800 GMT) that the Hayabusa 2’s nearly 16-inch (40-centimeter) sample carrier landed in Australia. Touchdown likely occurred several minutes earlier.

Recovery teams dispatched via helicopter began hunting for the 35-pound (16-kilogram) capsule using estimates of its landing site derived from a radio beacon signal. Mission managers expected it could take several hours to find the capsule and recover it. The landing occurred before dawn in Australia.

Since the article above was posted the capsule was located, and it was found much quicker than first expected.

This was the second sample return mission by the Japanese. The first, Hayabusa-1, successfully returned its capsule in 2010, but because of many technical problems during the mission it only brought back a few microscopic samples. In fact, the technical problems were so bad it was really a miracle the capsule came back at all.

Hayabusa-2 however has been a complete success, showing that they learned from the first mission and applied those lessons to the second.

3 comments

LRO snaps picture of Chang’e-5 on Moon

8:52 am

Chang'e-5 on the Moon, taken by LRO
Click for full image.

The science team for Lunar Reconnaissance Orbiter (LRO) late yesterday released an image taken of Chang’e-5 on the surface of the Moon. The image to the right, reduced to post here, is that photo.

China’s Chang’e 5 sample return spacecraft made a safe touchdown on the lunar surface at 10:11 EST (15:11 UTC) 01 December 2020. LRO passed over the site the following day and acquired an off-nadir (13° slew) image showing the lander centered within a triangle of craters.

The LROC team computed the coordinates of the lander to be 43.0576° N, 308.0839°E, –2570 m elevation, with an estimated accuracy of plus-or-minus 20 meters.

If all goes well, the return capsule, which lifted off from the Moon yesterday, will dock with the return vehicle in orbiter later today.

Leave a comment

Astra sets December 7th for next test launch of its orbital rocket

3:44 pm

Capitalism in space: The smallsat rocket company Astra is now targeting December 7th for its second of three test launches in its program to develop an orbital commercial rocket.

Astra plans to launch its two-stage, 38-foot-tall (12 meters) Rocket 3.2 from the Pacific Spaceport Complex on Alaska’s Kodiak Island between Dec. 7 and Dec. 18, representatives of the California startup announced last month. The window on each day runs from 2 p.m. to 5 p.m. EST (1900 to 2200 GMT; 10 a.m. to 1 p.m. local time in Alaska).

The orbital attempt will be the second for Astra, which aims to claim a sizable chunk of the small-satellite launch market with its line of flexible, cost-effective rockets. The first test flight, in September of this year, ended with a bang about 30 seconds after liftoff. Astra’s Rocket 3.1 experienced an apparent guidance issue, prompting controllers to terminate the flight for safety reasons.

They determined the failure was a software issue that they appear to have now fixed.

The company has made it clear that has always expected that it will take three launches to reach orbit, so a failure on this launch would not surprise them. They do seem very confident however that they will succeed this time.

Leave a comment

Arizona legislative Republican leaders call for election audit of Maricopa County

3:17 pm

The Republican leaders of the Arizona state senate and house today called for an audit of the Maricopa County Dominion software and equipment used during election day.

This is a major change of position, as these leaders have until now resisted such action. Maybe their change of heart is because of the evidence revealed at an improvised hearing earlier this week, as well as the problems found with a random selection of only 100 ballots. Or maybe it was this:

Arizona Rep. Mark Finchem on Friday called on his fellow lawmakers to come together and recall Arizona’s certification.

Finchem said county clerks are now coming forward and admitting something is off with the canvassing and the numbers are just not adding up. “We got people coming out of the woodwork,” Finchem said adding that the legislature will just go around Governor Ducey.

“We only need to have 31 members of the House and 16 members of the Senate pass a resolution recalling our electors. It’s that simple,” he said. “Our constituents are blowing up over this.” [emphasis mine]

The Constitution in the matter of choosing the President is very clear: It is the job of the state legislatures, not the voters, not the governors, not the courts, and most especially not unelected officials in election boards. For decades these state legislatures have allowed the popular vote determine the choice, because everyone trusted the counting process. It appears no one does anymore, and when that happens, the state legislatures need to do their job.

The goal should be to determine if the vote is valid, or not. If valid, than Joe Biden won. Period. Congratulations to the Democrats, though I doubt anyone will end up celebrating their rule in the end. Their policy choices and their eager willingness to blackball and persecute their opposition will not bode well for the future.

If not valid, however, the legislature has several choices. They can call for a revote. They can choose the president themselves, picking electors that will reflect that choice. Or they can refuse to certify at all, sending the decision to the federal House of Representatives.

The state legislature has an additional responsibility, irrelevant of the presidential election. They must institute major changes that will prevent such problems ever again.

Finally, kudos must go to my own representative, Mark Finchem, for pushing this hard, and finally getting some results. The battle is not won, but at least the enemy is finally retreating slightly.

4 comments

Ice-filled crater on Mars?

12:13 pm

Crater in southern mid-latitudes
Click for full image.

Time for another of the many cool images from Mars that suggest the presence of buried glacial ice. The photo to the right, rotated, cropped, and reduced to post here, shows an unnamed crater in the cratered southern highlands of Mars at about 44 degrees south latitude. Taken on October 2, 2020 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), the crater sits at the very southernmost point of the Tharsis Bulge where the Red Planet’s four more distinctive giant volcanoes are located.

The crater is also in the middle of the 30 to 60 degree mid-latitude bands where scientists have detected many features that suggest glaciers, including a large number of craters that appear to have ice filling their interior.

Does the material in this crater’s floor suggest eroding and sublimating ice to you? It does to me. The second image below zooms in at full resolution at the north-south trench and the strange patterned terrain to its east.
» Read more

Leave a comment

India’s space agency signs deal with private Indian smallsat company

9:28 am

The new commercial division of India’s space agency ISRO, dubbed the Department of Space (DoS), has signed a development deal with a new private Indian smallsat startup, Agnikul Cosmos, that has plans to build a rocket that will launch from Kodiak, Alaska in ’22.

More information here.

The agreement is designed to provide technical support to the company. Initially the company had only planned to launch from an ISRO launch facility in India. It now appears they are widening their goals to include an U.S. site as well, probably to encourage sales to American satellite companies.

Their rocket, 3D printed, also appears very small, and targets the smallest size smallsat market.

Leave a comment

Hubble captures 20-year fading of planetary nebula

9:10 am

The fading of the Stingray Nebula
Click for full image.

Astronomers using the Hubble Space Telescope have now tracked the spectacular fading of the Stingray Nebula, which when it was discovered in the mid-1990s was labeled the youngest such object ever found.

Astronomers have caught a rare look at a rapidly fading shroud of gas around an aging star. Archival data from NASA’s Hubble Space Telescope reveal that the nebula Hen 3-1357, nicknamed the Stingray nebula, has faded precipitously over just the past two decades. Witnessing such a swift rate of change in a planetary nebula is exceeding rare, say researchers.

Images captured by Hubble in 2016, when compared to Hubble images taken in 1996, show a nebula that has drastically dimmed in brightness and changed shape. Bright blue fluorescent tendrils and filaments of gas toward the center of the nebula have all but disappeared, and the wavy edges that earned this nebula its aquatic-themed name are virtually gone. The young nebula no longer pops against the black velvet background of the vast universe.

Astronomers have found that the central star had been heating precipitiously in the late 20th century, from 40K to 108K degrees Fahrenheit. Since then it has begun to cool. They think that flash of heat, caused by what they think was short period of helium fusion, caused the planetary nebula to brighten, and now fade.

2 comments

Trump administration asks Senate to remove SLS requirement for Europa Clipper

8:55 am

The Trump administration has requested the Senate to change the language in its NASA spending bill to remove its requirement that Europa Clipper be launched on SLS.

NASA wants the option to launch the Europa probe using commercial rockets, such as SpaceX’s Falcon Heavy. It also says that there are technical reasons that make using SLS problematic, and worse, the agency simply does not have enough SLS rockets to fly its planned (but unfunded) manned Artemis missions and also launch Europa Clipper.

The House has already removed that requirement in its version of the bill. The Senate has not, probably because the chairman of the Senate Appropriations Committee, Richard Shelby (R-Alabama), is a big fan of SLS (much of it built in his state), and has acted for years to pump money into that project.

If the requirement is not removed, Europa Clipper’s launch will likely be delayed by several years, and cost $1.5 billion more.

2 comments

First sunspot image from Inouye Solar Telescope

8:42 am

Sunspot image taken by Inouye Solar Telescope
Click for full image.

The science team for the new Inouye Solar Telescope, now in the final phase of construction, has released the telescope’s first high resolution sunspot image.

The image is to the right, reduced to post here, and was taken almost a year ago, on January 28, 2020.

“The sunspot image achieves a spatial resolution about 2.5 times higher than ever previously achieved, showing magnetic structures as small as 20 kilometers on the surface of the sun,” said [Dr. Thomas Rimmele, the associate director at NSF’s National Solar Observatory (NSO)].

The image reveals striking details of the sunspot’s structure as seen at the Sun’s surface. The streaky appearance of hot and cool gas spidering out from the darker center is the result of sculpting by a convergence of intense magnetic fields and hot gasses boiling up from below.

…This sunspot image, measuring about 10,000 miles across, is just a tiny part of the Sun. However, the sunspot is large enough that Earth could comfortably fit inside.

The start of official telescope operations is set to begin in ’21, and had been delayed because of the Wuhan flu panic. Construction had begun in ’13.

3 comments
1 … 291 292 293 294 295 … 925