Tuesday, November 2, 2021

'Balding' black holes prove Einstein right again on general relativity

Created for znamenski.spacecom@blogger.com |  Web Version
November 2, 2021
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The Launchpad
China's fresh moon rocks are younger than the Apollo samples and no one knows why
Visitors look and take pictures of a case holding lunar rock and debris recently collected from the Moon by China's space program that is part of a display at the National Museum of China on March 2, 2021 in Beijing, China. (Kevin Frayer/Getty Images)
A new study of moon rocks returned to Earth on China's Chang'e 5 mission confirm that volcanism occurred later than previously known, but also deepen lunar mysteries.
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'Balding' black holes prove Einstein right again on general relativity
(A. Bransgrove et al./Physical Review Letters 2021)
This new physics breakthrough shows how Einstein's theory of general relativity continues to hold up, even for "balding" black holes.
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You can help NASA train Mars rovers for the Red Planet
(NASA/JPL-Caltech)
You're looking at Perseverance's photos already anyway, so why not help classify some Mars terrain?
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Spaceflight
Europe announces new satellite constellation to track human-made greenhouse gas emissions
(NPL)
The new space mission will track human-made emissions of greenhouse gases from space to help keep the world on track to meet climate change mitigation targets, experts say.
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Blue Origin's 'Mannequin Skywalker' goes on display at Space Camp
(U.S. Space & Rocket Center)
The first passenger to fly with Blue Origin on not just one, but multiple flights into space has now retired to the home of U.S. Space Camp.
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Long space missions could cause brain damage similar to concussions, study finds
(NASA)
Staying in space for a long time can cause brain damage, according to a new study. But the study, which was detailed Oct.11 in JAMA Neurology, was small, and the effects on the cosmonauts' brains did not seem to be major.
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Science & Astronomy
This mysterious comet's super-bright outbursts has astronomers puzzled
(Faulkes Telescope Project/ Las Cumbres Observatory)
One of the strangest comets in the solar system has been erupting with unpredictable bright outbursts since late September and nobody knows why. Meet Comet 29P.
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Hubble telescope searches for aftermath of rare double star explosion (photo)
(ESA/Hubble & NASA, D. Milisavljevic)
Stellar explosions are messy affairs, so two consecutive supernovas in the same galaxy are bound to leave a mark. That's the story behind a dramatic new Hubble Space Telescope image of a galaxy called NGC 6984.
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What would happen if the speed of light was much lower?
(Apple)
In a vacuum, the speed of light is about 186,000 miles per second (300,000 kilometers per second). If it were orders of magnitude slower, humans would immediately take notice.
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SpaceX
This astronaut is spending his SpaceX launch delay cleaning up a Florida beach
(Matthias Maurer/ESA/Twitter)
Matthias Maurer, who is waiting with the rest of Crew-3 team for a delayed ride to the International Space Station, has spent part of his quarantine picking up trash on the Florida beach, within range of his SpaceX launch site.
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Technology
DJI Mavic 2 Pro drone review
(Future)
The DJI Mavic 2 Pro is an easy-to-use prosumer drone offering excellent stills and video capabilities.
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Skywatching
The brightest planets in November's night sky: How to see them (and when)
(Starry Night)
Here's how to see planets visible in November's night sky! Jupiter, Saturn and Venus all make bright appearances.
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Find out what's up in your night sky during November 2021 and how to see it in this Space.com stargazing guide.
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Star Wars
This awesome 834-piece Lego Darth Vader helmet is 20% off at Amazon
(Lego)
Learn the true power of the dark side with this awesome Lego Star Wars Darth Vader helmet, which is now 20% off on Amazon.
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