Month: July 2019

Russian Soyuz rocket successfully launches 33 satellites into orbit

10:56 pm

In its first Vostochny launch in 2019, Russia today used its Soyuz rocket to successfully launch a variety of weather, engineering, and Earth observation satellites totaling 33 into orbit.

As I write this the satellites are in orbit but have not yet been deployed by the rocket’s Fregat upper stage, a process that will take several hours as it moves them into a variety of orbits.

Many of the smaller satellites on this rockets are commercial cubesats, and are Russia’s effort to regain some of its lost commercial business that had been captured by SpaceX. They are also a sign of the changing launch business. Previously Russia’s commercial flights were all on its larger Proton rocket because the satellites were larger. Now the business is shifting to the smaller and recently more reliable Soyuz, because smaller satellites are beginning to dominate the industry.

The leaders in the 2019 launch race:

9 China
8 SpaceX
6 Russia
5 Europe (Arianespace)
3 India
3 Rocket Lab

The U.S. continues to lead China 14 to 9 in the national rankings.

Leave a comment

Frank Sinatra – The House I Live In

6:02 pm

An evening pause: Since it is July 4th, and the news is filled with depressing outrages from ignorant social justice warriors who have no knowledge at all about the just and noble roots that founded the United States, I think it necessary to post this magnificent song performed by Frank Sinatra.

Written and produced in 1945, as World War II was ending, the short film tried to encapsulate in one short song the true meaning of the American experiment. This version below includes the lead-in scene to show the context for the song, as sung in the film. Some might find that opening overly preachy, but in the context of World War II and the recent discovery then of the Nazi death camps, it is heartfelt, real, and quite accurate. Please watch it all, and recognize this is what the United States — now being condemned routinely by leftist hate-mongers — is really about.

The song begins by asking, “What is America to me?” It answers it clearly in the final verse:

The town I live in
The street, the house, the room
The pavement of the city
Or a garden all in bloom
The church, the school, the clubhouse
The million lights I see
But especially the people
that’s American to me. [emphasis mine]

And that means all the people, not just those who agree with you.

One comment

An inteview with George Zimmerman

1:50 pm

Link here. Read it all if you have any interest at all in finding out the truth. The key part of this story, which was confirmed by a not-guilty jury decision, is this:

Headed in the direction that the lights came from coming around the side of one of the townhouses to the “T” in the sidewalks [Zimmeran] was, without notice, punched in the face by Trayvon, instantly breaking his nose. Trayvon then grabbed George and tried to throw him to the ground multiple times. George held his own for a little bit but eventually was thrown to the ground. Once again George referred to the sketch showing me where they were by this time, which was a little further up the sidewalk from the initial attack. He said that the ground sloped down on one side of the sidewalk and his legs were down the hill while his head was on the sidewalk. Trayvon was now on top of George punching him repeatedly in the face, MMA style, as George described. Every time George tried to sit up Trayvon would slam him back down to the ground and in-turn his head would bounce off the sidewalk, causing him excruciating pain.

To get away from the pain being inflicted on his head, George tried sliding down the hill out from underneath Trayvon. This caused George’s red windbreaker to slide up revealing his Kel- Tec PF-9 9mm handgun holstered on his hip.

Trayvon noticed the gun and said, “You’re gonna die tonight!” At that point, George realized that it wasn’t his gun or Trayvon’s gun, it was “the” gun in the fight!

Without any prior experience of drawing and shooting from the holster, George knew it was either now or never. He unholstered the firearm and fired one shot at the man who he felt was trying to take his life. The response from Trayvon was like that of an old Western movie. He said, “Ya got me!” At that second George thought his shot missed. To him, it seemed as if Trayvon was making a statement to concede defeat and not that he actually was hit by the bullet.

In that instance George wasn’t worried about his safety or that somebody was trying to kill him, he was more concerned that he missed Trayvon and might have hurt somebody else in a nearby house. To me, this was one of many enlightening times in our meeting. More concerned for the life of his neighbors than his own life.

All Zimmerman was doing at that moment was trying to save his own life. All of this was obvious at the time, for all those who were willing to do any research into the facts. Yet, as punishment for not allowing himself to be killed by a street thug, our bigoted and political cultural elites decided to destroy this poor man’s life anyway, because it gave them a great vehicle for ramping up race hatred and anti-American propaganda.

This says far more about them than it does about Zimmerman, or Trayvon Martin.

4 comments

Jupiter’s changing Great Red Spot

12:53 pm

The changing Great Red Spot
Click for full resolution image.

Using Juno images produced during four different orbits, beginning in July 2017 through February 2019, citizen scientist Björn Jónsson has created a montage, reduced in resolution to post on the right, that shows the changes that have occurred in Jupiter’s Great Red Spot during that time. As he writes,

This is a montage of four map-projected [Spot] mosaics processed from images obtained during these perijoves (at the time of this writing perijove 20 is the most recent perijove). The mosaics show how the [Spot] and nearby areas have changed over the course of the Juno mission. The mosaics cover planetographic latitudes 4.7 to 38 degrees south.

The resolution of the source data is highly variable and this can be seen in some of the mosaics. The viewing geometry also varies a lot. Some of the images were obtained almost directly above the [Spot] (in particular some of the perijove 7 images) whereas other images were obtained at an oblique viewing angle (in particular the perijove 17 images).

These are approximately true color/contrast mosaics but there may be some inaccuracies in areas where the original images were obtained at a highly oblique angle. The contrast is also lower in these areas.

What strikes me the most is how the Spot itself seems relatively unchanged, while the bands and surrounding cloud formations changed significantly during this time.

One comment

1776 – Hatching an Egg

12:01 pm

A mid-day pause: Posted by me on almost every Fourth of July since this site was founded, it is time to do it again. From the 1976 movie version of the 1972 musical, 1776. As I said in those earlier posts, “not only did the musical capture the essence of the men who made independency happen, it is also a rollicking and entertaining work of art.”

And as John Kennedy said of himself, ourselves, and these founding fathers. “We stand for freedom.”

3 comments

Paper ballot count puts establishment Democrat ahead of socialist in NYC primary

9:14 am

The count of paper ballots submitted during last week’s Democratic Party primary for Queens district attorney has put the establishment candidate Queens Borough President Melinda Katz ahead–by 20 votes–of Tiffany Cabán, the socialist endorsed by Alexandria Ocasio-Cortez.

Queens Borough President Melinda Katz is now leading lefty insurgent Tiffany Cabán in the Democratic primary for Queens district attorney — a stunning reversal of fortunes after the race went into a paper ballot count with Cabán ahead by more than 1,000 votes last week.

About 6,000 paper ballots remained to be counted, and as the Board of Elections tallied the final votes Wednesday night, Katz was leading Rep. Alexandria Ocasio-Cortez-backed Cabán by a razor-thin 20 votes, two sources told The Post.

Both sides acknowledged the narrow margin would trigger a recount — but that didn’t stop Katz from declaring victory Wednesday night.

I find this story most amusing, as it reminds me of Minnesota and the recount of paper ballots that gave Democrat Al Franken his victory over Republican Norm Coleman in 2008. Many fishy things seemed to occur during that recount that has always made it suspicious.

Either way, it appears the Democratic establishment, having realized what a political disaster Ocasio-Cortez has been, did not want another such socialist representing them in New York and appears to have moved to make sure it didn’t happen. For example, there’s this story: Queens DA frontrunner Tiffany Cabán dedicates ‘victory’ to Rikers inmates

Rikers Island inmates are first in Tiffany Cabán’s heart.

“Our victory belongs to folks who have been locked up on Rikers simply because they could not afford their bails,” she said Saturday, days after early results showed her the likely winner of the Democratic primary for Queens district attorney.

Though politically this position by her, allied more with criminals than ordinary honest citizens, isn’t really much different than the bulk of today’s Democratic Party, her willingness to state those positions openly is why the establishment Democrats in Queens are desperate to stop her.

Hat tip reader Cotour.

4 comments

Update on planned Russian additions to ISS

8:54 am

Link here. The article describes present status of Russia’s new modules to ISS, along with their tentative launch dates in the early 2020s.

We should not take these dates too seriously. Russia is literally decades behind schedule in launching this stuff. Whether they can finally get them in orbit now, with their present shortage in cash, remains unknown.

Leave a comment

Far right radicals make declaration

8:01 am

A group of far right radicals, some of which had been accused of many crimes against the legal government, today made a declaration that clearly required their arrest for daring to defy the powers-that-be.

From the first two paragraphs:

When in the Course of human events it becomes necessary for one people to dissolve the political bands which have connected them with another and to assume among the powers of the earth, the separate and equal station to which the Laws of Nature and of Nature’s God entitle them, a decent respect to the opinions of mankind requires that they should declare the causes which impel them to the separation.

We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. — That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, — That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness. Prudence, indeed, will dictate that Governments long established should not be changed for light and transient causes; and accordingly all experience hath shewn that mankind are more disposed to suffer, while evils are sufferable than to right themselves by abolishing the forms to which they are accustomed. But when a long train of abuses and usurpations, pursuing invariably the same Object evinces a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new Guards for their future security.

Without a doubt our country’s corrupt ruling class in Washington finds these words appalling and unacceptable. Some, mostly leftists and Democrats, consider the man who wrote these words evil, and the men who signed it worse.

But then, these fools have never read these words or anything thing else Thomas Jefferson and the other Founding Fathers wrote. Or if they have, they weren’t smart enough to understand them.

Happy Fourth of July! And as it says on the Liberty Bell, “Proclaim liberty throughout all the land unto all the inhabitants thereof.”

15 comments

Want to get off gmail? Behind the Black might provide an option

10:01 pm

I am exploring the possibility of offering email services through my server for those who want to get off of gmail and google. However, before such a service can be offered, we need to know the amount of interest there might be. The demand will effect the cost, which means I can’t even give you an idea of what we might charge.

Regardless, if you are interested in having “your.name@behindtheblack.com” as your email address, please say so in the comments. There will be no obligations, by you or me or my server, but the response however will help us decide if we can do it.

And if we can do it, and many people sign on, we will then be taking the proper free enterprise approach for combating the corrupt business practices of giants like Google. Our federal government might still act to break Google up, but I think it would be far better if the free market did the job instead.

21 comments

Ocasio-Cortez’s supporters dox and threaten little girl

1:41 pm

They’re coming for you next: The family of a little girl who had been doing silly videos making fun of Alexandra Ocasio-Cortez (D-New York) has shut down all of her social media accounts and will no longer allow her to do videos because they were doxed and they have been receiving death threats on their home phone.

Here is the family’s tweet:

MiniAOC tweet

Words fail me. I wonder what Ocasio-Cortez’s response will be for this disgusting behavior. I expect nothing, or if she does say something she will equivocate somehow, trying to put some of the blame on the little girl and her family.

It increasingly appears that the left and the Democrats (I repeat myself) are now willing to threaten little children for making silly fun of the politicians they support.

As I have said repeatedly, they’re coming for you next.

UPDATE: More details here, including one of the girl’s truly hilarious videos.

10 comments

A journey to Saturn’s moon Dione

1:08 pm

Global Map of Dione

Cool image time! Today, for a change, I decided to spend some time rummaging through the Cassini raw image archive, mainly because I wanted to see some variety. At this time sadly almost all the good images coming from space are limited to Mars images, and I wished to post a cool image from somewhere else in the solar system.

The global map above was compiled from photographs of the Saturn moon Dione taken by Cassini during its thirteen years in orbit around the ringed giant.

The orange box indicates the sector of interest. The white outline indicates the location of the next photograph below and to the right, taken by Cassini during its first close fly-by of the moon on October 11, 2005, when the spacecraft was approaching the moon.
» Read more

Leave a comment

Apollo landing tapes for sale

9:42 am

An intern who in 1976 purchased more than a thousand surplus 2-inch videotapes from NASA for $218 is now going to auction off three of those reels that show the Apollo 11 moon walk.

Back in 1976, NASA gave 1,150 reels of 2-inch Quadruplex videotape to a government surplus auction. Gary George, a former intern at NASA’s Johnson Space Center, snapped up the lot of them for $218, in the hopes of selling them to news stations to record over for $50 a pop. He never watched them, but because his dad was a space buff, kept three of the tapes marked as “Apollo 11 EVA” (aka Extravehicular Activity, better known as a spacewalk). When he eventually watched the tapes, he realized that he had one of three surviving copies of one of the greatest feats of human ingenuity, the July 20, 1969 Moon landing. Now, those videotapes will be auctioned off to the highest bidder when Sotheby’s will mark the 50th anniversary of the moon landing by putting the tapes up for sale on July 20th, at a starting bid of $700,000.

“I had no idea there was anything of value on them,” George said in an interview with Reuters. He started to get suspicious in 2006, after NASA admitted they had lost the tapes, and believed they could have been in the 2,614 boxes of Apollo mission tapes that were sent to a storage facility in late 1969. George got in touch with video archivist David Crosthwait in California, who had the necessary equipment to view the vintage tapes. In December 2008, George played the reels and quickly realized what he had been storing over the last few decades. He contacted NASA about the reels but “an agreement could not be reached,” according to the auction listing, and off to the auction block they go as part of an auction dedicated to Space Exploration.

The saddest part of this story are the tapes George sold to television stations to use to back-up their daily broadcasts. Some of those tapes probably contained historical recordings of the Apollo missions. While I suspect these tapes were not NASA’s only copies, I cannot be sure, which means some of the source material for the Apollo missions was likely lost.

Leave a comment

Astronomers map exoplanet atmosphere of super-Earth

9:26 am

Worlds without end: Using both the Hubble and Spitzer space telescopes, astronomers have characterized the atmosphere of an exoplanet with a mass between that of the Earth and Neptune.

Astronomers enlisted the combined multi-wavelength capabilities NASA’s Hubble snd Spitzer space telescopes to do a first-of-a-kind study of GJ 3470 b’s atmosphere. This was accomplished by measuring the absorption of starlight as the planet passed in front of its star (transit) and the loss of reflected light from the planet as it passed behind the star (eclipse). All totaled, the space telescopes observed 12 transits and 20 eclipses. The science of analyzing chemical fingerprints based on light is called “spectroscopy.”

“For the first time we have a spectroscopic signature of such a world,” said Benneke. But he is at a loss for classification: Should it be called a “super-Earth” or “sub-Neptune?” Or perhaps something else?

Fortuitously, the atmosphere of GJ 3470 b turned out to be mostly clear, with only thin hazes, enabling the scientists to probe deep into the atmosphere. “We expected an atmosphere strongly enriched in heavier elements like oxygen and carbon which are forming abundant water vapor and methane gas, similar to what we see on Neptune”, said Benneke. “Instead, we found an atmosphere that is so poor in heavy elements that its composition resembles the hydrogen/helium rich composition of the Sun.”

To me, our knowledge of exoplanets today is beginning to resemble our knowledge of the planets in the solar system c. 1950. The little data we have gives us a vague idea of what’s there, but there are so many gaps and uncertainties that no one should be confident about drawing any firm conclusions.

4 comments

Roscosmos creates new design bureau to build reusable rocket

9:16 am

The Russian bureaucracy marches on! Roscosmos has formed a new design bureau, dubbed Bartini after Italian-born Soviet-era aircraft designer Robert Bartini, to build a new reusable rocket

The article says this rocket will be “based on the preliminary design of the Krylo-SV (Wing) project.” I cannot find any references anywhere for such a project, though this webpage notes that a test pilot for the Soviet Buran shuttle worked in 1999 for a “Krylo Company.” I suspect this was one of the many failed attempts to form a private space company after the fall of the Soviet Union, and it had produced designs for a reusable winged spacecraft, which is why that test pilot had worked for them. (It likely failed because the big already existing organizations in Russia teamed up with the government to squelch this new competition.)

Regardless, it appears that Russia is going to dust off those plans. Note that this new organization is a top-down creation, not a new independent company. I expect therefore that its biggest goal is to provide jobs. Whether it gets much built is another story.

Leave a comment

ExoMars 2020 parachutes damaged during test

9:02 am

Bad news: The parachutes for the European/Russian ExoMars 2020 mission were damaged during a parachute test.

A May 28 test of the parachute system used a high-altitude balloon above the Swedish Space Corporation’s Esrange test site in northern Sweden. The test was intended to demonstrate the end-to-end performance of the entire system, including both the pilot and main chutes as well as the mortars used to extract the pilot chutes.

ESA said that the first main parachute suffered several radial tears in its fabric, all occurring before reaching its maximum load. The second main parachute also suffered a single tear, also before peak loading.

The other parts of the parachute system worked as expected, and ESA said “a good level of the expected aerodynamic drag was nevertheless achieved” despite the damage sustained by the parachutes. However, the agency acknowledged that the problem needs to be understood and corrected prior to the mission’s launch in one year.

They can easily get the parachutes repaired before the July 2020 launch. The problem is figuring out what caused the damage and fixing that in the time left. They already had planned two more parachute tests, but these cannot happen prior to all the fixes, and then they have to work.

Considering that they will only assemble the spacecraft at the end of this year, I am increasingly thinking that ExoMars 2020 will not launch in 2020. And if it does, I will not be surprised if it turns out to be a failure.

2 comments

LightSail 2 released from cubesat; establishes contact

9:58 pm

The Planetary Society’s LightSail-2 technology demonstration satellite was released from its carrier vehicle today and successfully established communications with the ground.

The CubeSat, about the size of a loaf of bread, was scheduled to leave Prox-1 precisely 7 days after both spacecraft successfully flew to orbit aboard a SpaceX Falcon Heavy rocket. Following deployment from its spring-loaded enclosure known as a P-POD, LightSail 2 deployed its radio antenna and began transmitting health and status data, as well as a morse code beacon indicating its call sign. The mission team received LightSail 2’s first signals on 2 July at 01:34 PDT (08:34 UTC), as the spacecraft passed over Cal Poly.

…The team will spend about a week checking out LightSail 2’s systems, exercising the spacecraft’s momentum wheel, and taking camera test images before and after deployment of the CubeSat’s dual-sided solar panels. Following the successful completion of these tests, the team will deploy the 32-square-meter solar sail, about the size of a boxing ring. A time for the solar sail deployment attempt will be announced later.

If they successfully deploy the solar sail and use it to maneuver in space, it will the second time the Planetary Society has done it, having deployed LightSail-1 in 2015. That mission has some communications problems, but eventually succeeded in its main engineering mission by testing the sail deployment system.

LightSail-2 will also be the third time a light sail has been flown in space, with the first, Ikaros, deployed by the Japanese in 2010 and flown in solar orbit through 2012. That mission was successful in using sunlight to accelerate the sail.

6 comments

Democratic congresswoman wants to prosecute anyone who ridicules a member of Congress

4:26 pm

They’re coming for you next: Democratic congresswoman Frederica Wilson (D-Florida) said today that she wants to “shut down” and “prosecute” those online who have been ridiculing members of Congress.

“Those people who are online making fun of members of Congress are a disgrace and there is no need for anyone to think that is unacceptable,” Wilson said during a press conference. “We are going to shut them down and work with whoever it is to shut them down, and they should be prosecuted.”

The Democratic Party today is a party of fascists. If you are registered Democrat you better start reconsidering who you are supporting, or else you will be complicit in some very oppressive abuses of power.

19 comments

The Martian seabed?

2:24 pm

Cones and strange blobs
Click for full image.

Cool image time! Above is an image taken by the high resolution camera of Mars Reconnaissance Orbiter (MRO) in November 2018 of an area in the vast relatively featureless northern lowlands of Mars. I have rotated, cropped, and reduced it to post here.

I have also indicated two sections, indicated by the white boxes, that I have cropped out of the full resolution image to highlight some interesting features. Both images can be seen in full resolution below.

While the northern lowlands seem featureless from a distance, with few craters, a closer look always reveals many things that are both baffling and fascinating. In this case the region is called Galaxias Colles, a region of mesas and knobby hills. This particular image was dubbed “Cones in Galaxias Colles,” and was clearly taken to get a better look at these strange blobby features.
» Read more

Leave a comment

Strike on July 4-5 against censorship on Google, Facebook, Twitter, etc

9:01 am

A strike protesting the censorship of conservatives on social media giants Google, Facebook, Twitter, etc, is being organized for July 4 and 5.

According to organizer Larry Sanger, co-founder of Wikipedia (who has since split with the project), “This means we will not use social media on those days, except to post notices that we are on strike. We’re going to make a lot of noise. Nobody will be able to ignore what’s happening. We’re going to flex our collective muscles and demand that giant, manipulative corporations give us back control over our data, privacy, and user experience.”

More details at the link.

I would love to join them, but since I do not use any of these corrupt social media, essentially striking against them continuously, there isn’t much I can do. However, if you use Facebook for example you might be able to have an impact.

3 comments

India hires Russia to train its astronauts

8:51 am

The new colonial movement: India’s space agency ISRO has hired the Russians to train its astronauts for its first home-built manned mission, Gaganyaan, presently scheduled to fly in 2022.

This decision makes a lot of sense. First, the space programs of Russia and India have cooperated a lot in the past, with Russia launch India’s first astronaut on a Soyuz in 1984. Second, Russia has a great deal of experience training new astronauts from other countries, including tourists. Third, neither of the other countries with manned programs, the U.S. and China, have established systems for this kind of training. China has never training any outsiders, and NASA’s systems for this are not designed for efficiency. Moreover, it has been eight years since the U.S. put anyone in space. If I was India I would prefer using someone with recent experience.

Leave a comment

SLS abort test for Orion successful

8:44 am

The second launch abort test of NASA’s SLS/Orion rocket/capsule was successfully completed today.

I have embedded video of the test below the fold. The goal was to test the system that will safely separate the capsule from a failing rocket, which is why no parachutes released to gently bring the capsule back to Earth.

Ascent Abort-2 (AA-2) intentionally runs that emergency abort sequence. Three motors in the LAS fired in that short sequence of a few seconds and then the test was essentially over before the three minutes was up while the hardware was airborne.

NASA and its Orion contractor team recorded test data from real-time telemetry and in onboard data recorders, but the major hardware for the test fell into the ocean. A set of a dozen data recorders were ejected from the Crew Module test article for recovery before it hit the water and sunk.

Why they couldn’t also test the parachutes the same time illustrates the wasteful manner in which SLS/Orion is managed. Moreover, this test was the second for this rocket/capsule, with the first occurring nine years ago, in May 2010. As I have noted,

We fought and won World War II in about a third of that amount of time. The Civil War took about half that time. In fact, it took SpaceX less time to conceive, design, and launch the Falcon Heavy.

Any project that takes this long to accomplish anything is a fraud. It indicates that the goal of SLS/Orion is not to build and fly a manned capsule, but to suck money from the taxpayer for as long as possible.

» Read more

2 comments

Comparing today’s modern rocket engines

10:17 pm

For the geeks among us, below the fold is a really really good video describing the engineering designs and considerations that have gone into the launch industry’s most important rocket engines, both now and in the future, with the goal of understanding the design choices SpaceX made for its Raptor engine.

The video is almost 50 minutes long, but if you set the speed at 1.25 you can still understand it and save some time.

Hat tip reader Michael Nelson.
» Read more

One comment

Astronomers declare: Oumuamua was not an alien spacecraft!

7:36 pm

The uncertainty of science: An international team of astronomers have announced that after much consultation and discussion it is their conclusion that the interstellar object Oumuamua that zipped through the solar system in 2017 was a natural object, not an alien spacecraft.

[A] review of all the available evidence by an international team of 14 experts strongly suggests that ʻOumuamua has a purely natural origin. The research team reported their findings in the July 1, 2019, issue of the journal Nature Astronomy.

“We have never seen anything like ʻOumuamua in our solar system,” said Dr. Matthew Knight, the team leader from the University of Maryland “but our preference is to stick with analogs we know, unless or until we find something unique. The alien spacecraft hypothesis is a fun idea, but our analysis suggests there is a whole host of natural phenomena that could explain it.”

It is perfectly reasonable for these scientists to choose the simplest and most likely explanation for Oumuamua, which would be a natural object. Moreover, their conclusion does fit the data we have reasonable well.

At the same time, for anyone to assume there is any certainty to this conclusion would be a grave mistake. It is merely the best guess, based on the available but somewhat limited data. The data however does not preclude more exotic explanations. Nothing is certain.

Leave a comment

New image of Eta Carina from Hubble

7:27 pm

Eta Carina
Click for full image.

Using the Hubble Space Telescope, astronomers have taken a new spectacular image of the Luminous Blue Giant star Eta Carina. The image on the right is that photograph, reduced to post here.

Using Hubble’s Wide Field Camera 3 to map the ultraviolet-light glow of magnesium embedded in warm gas (shown in blue), astronomers were surprised to discover the gas in places they had not seen it before.

Scientists have long known that the outer material thrown off in the 1840s eruption has been heated by shock waves after crashing into the doomed star’s previously ejected material. In the new images, the team had expected to find light from magnesium coming from the same complicated array of filaments as seen in the glowing nitrogen (shown in red). Instead, a completely new luminous magnesium structure was found in the space between the dusty bipolar bubbles and the outer shock-heated nitrogen-rich filaments.

Eta Carina had a major eruption in the 1840s, followed by other lesser outbursts, the evidence of which is obvious in this and other earlier Hubble images. In fact, over the past twenty-five years Hubble has actually tracked the expansion of those two lobes of material being flung from the star hidden deep in the material.

Someday in the far future astronomers believe it will die as a supernova, though that is only a hypothesis at this point, based on our presently limited understanding of stellar evolution.

3 comments

Where are the caves on Mars?

9:16 am

Overview map of pits near Arsia Mons

Each month I go through the monthly download of new images from the high resolution camera on Mars Reconnaissance Orbiter (MRO). And each month since November I have found a bunch of newly discovered pits photographed in the region around the volcano Arsia Mons (see: November 12, 2018, January 30, 2019, February 22, 2019, April 2, 2019, and May 7, 2019). The map on the right has been updated to include all those previous pits, indicated by the black boxes, with the new pits from June shown by the numbered white boxes.

To the right are the first three pits in the June archive, with the link to each image site found here (#1), here (#2), and here (#3).

Pits 1 through 3
For full images: Number 1, Number 2, Number 3.

All three are what the scientists doing this research call Atypical Pit Craters:

These Atypical Pit Craters (APCs) generally have sharp and distinct rims, vertical or overhanging walls that extend down to their floors, surface diameters of ~50–350 m, and high depth to diameter (d/D) ratios that are usually greater than 0.3 (which is an upper range value for impacts and bowl-shaped pit craters) and can exceed values of 1.8. Observations by the Mars Odyssey Thermal Emission Imaging System (THEMIS) show that APC floor temperatures are warmer at night and fluctuate with much lower diurnal amplitudes than nearby surfaces or adjacent bowl-shaped pit craters.

The fourth pit, shown in the reduced and cropped image below, might actually be the most interesting of the June lot.
» Read more

3 comments

Chick-fil-A vandalized in NY during gay pride march

7:48 am

They’re coming for you next: A Chick-fil-A fast food restaurant was vandalized in NY during gay pride march, with the obscene graffiti clearly political.

The damage was relatively minor, but this is only the beginning. Anyone with that much anger and hate for a store simply because it closes on Sunday and its owners are devout Christians will eventually decide that more violent action is justified.

6 comments
1 … 4 5 6