Cool astronomy photos

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Abdul Alhazred
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Re: Cool astronomy photos

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Best viewed full screen. 8)

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Witness
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Re: Cool astronomy photos

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Anaxagoras
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Re: Cool astronomy photos

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Photos are too big to embed here, so link to tweet:

The one on the right appears to be a reflection on a solar panel.
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Witness
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Re: Cool astronomy photos

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Very high resolution moon picture (color enhanced): https://i.redd.it/8v2xpu7hgif41.jpg

Source: https://old.reddit.com/r/Astronomy/comm ... esolution/

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Re: Cool astronomy photos

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Re: Cool astronomy photos

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In other astro news:
NASA brings Voyager 2 fully back online, 11.5 billion miles from Earth

In an incredible feat of remote engineering, NASA has fixed one of the most intrepid explorers in human history. Voyager 2, currently some 11.5 billion miles from Earth, is back online and resuming its mission to collect scientific data on the solar system and the interstellar space beyond.

On Wednesday, February 5 at 10:00 p.m. Eastern, NASA's Voyager Twitter account gave out the good news: Voyager 2 is not only stable, but is back at its critical science mission.

"My twin is back to taking science data, and the team at @NASAJPL is evaluating the health of the instruments after their brief shutoff," the account tweeted.

Voyager 2 is sister craft to Voyager 1. Both have been traveling through the solar system — and now beyond it — for the last four decades. Together, they have transformed our understanding of our stellar neighborhood and are already revealing unprecedented information about the interstellar space beyond the Sun's sphere of influence.
https://www.inverse.com/science/nasa-br ... from-earth for the rest.

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Abdul Alhazred
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Re: Cool astronomy photos

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Witness wrote:
Sun Feb 09, 2020 3:53 am
In other astro news:
NASA brings Voyager 2 fully back online, 11.5 billion miles from Earth

...
Sterilize imperfection.
.
.
To Fly Free in Space ==> https://apod.nasa.gov/apod/ap200209.html

Here it is, but best viewed by clicking the link and then the pic itself (there) for full screen.

Image
Image "If I turn in a sicko, will I get a reward?"

"Yes! A BIG REWARD!" ====> Click here to turn in a sicko
The arc of the moral universe bends towards chaos.
People who believe God or History are on their side provide the chaos.

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Witness
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Re: Cool astronomy photos

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The barred spiral NGC1365 + 209 named galaxies in this field:

Image

Full-size image to zoom in: https://i.redd.it/539efusrure41.jpg
Technical details: https://old.reddit.com/r/Astronomy/comm ... night_sky/

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Re: Cool astronomy photos

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robinson
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Re: Cool astronomy photos

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♪ ♫ ♩ ♬ "

"Science and Mother Nature are in a marriage where Science is always surprised to come home and find Mother Nature blowing the neighbor."

♪ ♫ ♩ ♬

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Witness
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Re: Cool astronomy photos

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Image
NGC 7331 Close Up

Big, beautiful spiral galaxy NGC 7331 is often touted as an analog to our own Milky Way. About 50 million light-years distant in the northern constellation Pegasus, NGC 7331 was recognized early on as a spiral nebula and is actually one of the brighter galaxies not included in Charles Messier's famous 18th century catalog. Since the galaxy's disk is inclined to our line-of-sight, long telescopic exposures often result in an image that evokes a strong sense of depth. This Hubble Space Telescope close-up spans some 40,000 light-years. The galaxy's magnificent spiral arms feature dark obscuring dust lanes, bright bluish clusters of massive young stars, and the telltale reddish glow of active star forming regions. The bright yellowish central regions harbor populations of older, cooler stars. Like the Milky Way, a supermassive black hole lies at the core of spiral galaxy NGC 7331.
https://apod.nasa.gov/apod/ap200207.html (full size picture)

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Re: Cool astronomy photos

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Image
The Kuiper belt object Arrokoth is a pristine remnant of planet formation in action
New Horizons spacecraft 'alters theory of planet formation'
Scientists say they have "decisively" overturned the prevailing theory for how planets in our Solar System formed.

The established view is that material violently crashed together to form ever larger clumps until they became worlds.

New results suggest the process was less catastrophic - with matter gently clumping together instead.

The study appears in Science journal and has been presented at the American Association for the Advancement of Science meeting in Seattle.

The study's lead researcher, Dr Alan Stern, said that the discovery was of "stupendous magnitude".
"There was the prevailing theory from the late 1960s of violent collisions and a more recent emerging theory of gentle accumulation. One is dust and the other is the only one standing. This rarely happens in planetary science, but today we have settled the matter," he told BBC News.

The claim arises from detailed study of an object in the outer reaches of the Solar System. Named Arrokoth, the object is more than six billion km from the Sun in a region called the Kuiper belt. It is a pristine remnant of planet formation in action as the Solar System formed 4.6 billion years ago, with two bodies combining to form a larger one.

Scientists obtained high-resolution pictures of Arrokoth when Nasa's New Horizons spacecraft flew close to it just over a year ago. It gave scientists their first opportunity to test which of the two competing theories was correct: did its components crash together or was there gentle contact?

The analysis by Dr Stern and his team could find no evidence of violent impact. The researchers found no stress fractures, nor was there any flattening, indicating that the objects were squashed together gently.

"This is completely decisive," said Dr Stern. "In one fell swoop, the flyby of Arrokoth was able to decide between the two theories."
Well, they do seem to be generalizing from a sample of one.
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Re: Cool astronomy photos

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Honk!

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Re: Cool astronomy photos

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Image
Albert Einstein's general theory of relativity, published over 100 years ago, predicted the phenomenon of gravitational lensing. And that's what gives these distant galaxies such a whimsical appearance, seen through the looking glass of X-ray and optical image data from the Chandra and Hubble space telescopes. Nicknamed the Cheshire Cat galaxy group, the group's two large elliptical galaxies are suggestively framed by arcs. The arcs are optical images of distant background galaxies lensed by the foreground group's total distribution of gravitational mass. Of course, that gravitational mass is dominated by dark matter. The two large elliptical "eye" galaxies represent the brightest members of their own galaxy groups which are merging. Their relative collisional speed of nearly 1,350 kilometers/second heats gas to millions of degrees producing the X-ray glow shown in purple hues. Curiouser about galaxy group mergers? The Cheshire Cat group grins in the constellation Ursa Major, some 4.6 billion light-years away.
https://apod.nasa.gov/apod/ap191026.html

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Re: Cool astronomy photos

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Starting to wonder if I should change my entry in the Deadpool to Betelgeuse.

https://astronomy.com/news/2020/02/dimm ... mages-show

This has been in NASA news for the past year. Betelgeuse has been dimming, which is normal for a variable star, but it's been dimmer for a longer period since its variable phenomenon was first recorded. As of a few days ago, it started changing shape. :POMG: :POMG: :POMG:

I would honestly like to see it go supernova. That would be super cool. It would almost be worth the Second Coming and other woo nonsense that would surely follow.
Such potential!

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Re: Cool astronomy photos

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Image
This orange blob shows the star Betelgeuse, as seen by the Atacama Large Millimeter/submillimeter Array (ALMA). This is the first time that ALMA has ever observed the surface of a star and this first attempt has resulted in the highest-resolution image of Betelgeuse available.
https://en.wikipedia.org/wiki/Betelgeuse

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Re: Cool astronomy photos

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https://www.nasa.gov/planetarydefense/dart
The binary near-Earth asteroid (65803) Didymos is the target for the DART demonstration. While the Didymos primary body is approximately 780 meters across, its secondary body (or “moonlet”) is about 160-meters in size, which is more typical of the size of asteroids that could pose the most likely significant threat to Earth. The Didymos binary is being intensely observed using telescopes on Earth to precisely measure its properties before DART arrives.

The DART spacecraft will achieve the kinetic impact deflection by deliberately crashing itself into the moonlet at a speed of approximately 6.6 km/s, with the aid of an onboard camera (named DRACO) and sophisticated autonomous navigation software. The collision will change the speed of the moonlet in its orbit around the main body by a fraction of one percent, but this will change the orbital period of the moonlet by several minutes - enough to be observed and measured using telescopes on Earth.
:guitar: :guitar: :guitar: :guitar:

Unless....by some sick twist of fate that typically only exists in movies....the impact redirects the space rock directly toward earth. :shock:

Better start training those oil rig operators how to be astronauts right now, eh? :wink:
Such potential!

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Re: Cool astronomy photos

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Liv Tyler could use the work.

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Mob of the Mean: Free beanie, cattle-prod and Charley Fan Club!
"Doctor X is just treating you the way he treats everyone--as subhuman crap too dumb to breathe in after you breathe out."--Don
DocX: FTW.--sparks
"Doctor X wins again."--Pyrrho
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"It was the criticisms of Doc X, actually, that let me see more clearly how far the hypocrisy had gone."--clarsct
"I'd leave it up to Doctor X who has been a benevolent tyrant so far."--Grammatron
"Indeed you are a river to your people.
Shit. That's going to end up in your sig."--Pyrrho
"Try a twelve step program and accept Doctor X as your High Power."--asthmatic camel
"just like Doc X said." --gnome

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Re: Cool astronomy photos

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Listy can help her with that. :)
You can lead them to knowledge, but you can't make them think.

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Re: Cool astronomy photos

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No pictures (yet):
Astronomers to sweep entire sky for signs of extraterrestrial life

Project is collaboration between privately-funded institute and New Mexico observatory

Image

Astronomers will sweep the entire sky for signs of extraterrestrial life for the first time, using 28 giant radio telescopes in an unprecedented hunt for alien civilisations.

The project is a collaboration between the privately-funded Seti Institute and the Very Large Array observatory in New Mexico, one of the world’s most powerful radio observatories. Gaining real-time access to all the data gathered by VLA is considered a major coup for scientists hunting extraterrestrial lifeforms and an indication that the field has “gone mainstream”.

Normal astronomy operations will continue at the VLA, which was featured in the 1997 film Contact, but under the new arrangement all data will be duplicated and fed through a dedicated supercomputer that will search for beeps, squawks or other signatures of distant technology.

“The VLA is being used for an all-sky survey and we kind of go along for the ride,” said Andrew Siemion, director of the Berkeley Seti centre. “It allows us to in parallel conduct a Seti survey.

“Determining whether we are alone in the universe as technologically capable life is among the most compelling questions in science, and [our] telescopes can play a major role in answering it,” said Tony Beasley, director of The National Radio Astronomy Observatory, which runs the VLA.
https://www.theguardian.com/science/202 ... trial-life