Friday, December 17, 2021

Astronomers detect new brown dwarf orbiting an M-dwarf star

Observations have shown that massive brown dwarfs orbiting their hosts at a relatively close distance (less than 3.0 AU) are extremely rare and difficult to find.

Now, a team of astronomers led by Penn State's Caleb I. CaƱas, reports the finding of a new massive brown dwarf, apparently another representative of this desert.

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Ground control to Maezawa: SoftBank's Son speaks to orbiting protege | Reuters

"Maezawa called my mobile but it cut out!! I tried to call him back but he was out of range," Son posted to his 2.9 million Twitters followers late on Wednesday.

"Maezawa's call to my mobile connected!! It's great he's doing well!!" Son wrote in a follow-up post, making liberal use of red punctuation marks favoured by older Japanese mobile users. "It's wonderful when dreams come true!!"

Publisher: Reuters
Date: 2021-12-16T06:20:08Z
Author: Sam Nussey
Twitter: @Reuters
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Best Views Captured Yet Reveal Stars Orbiting Milky Way's Supermassive Black Hole | IFLScience

The best views yet of the stars orbiting very close to Sagittarius A*, snapped in June 2021. Image Credit: ESO/GRAVITY collaboration

At the center of the Milky Way, resides a supermassive black hole known as Sagittarius A* . It weighs over 4 million times our Sun. There are a handful of stars that orbit pretty close to this behemoth and now we have the deepest, clearest images of them yet.

Publisher: IFLScience
Twitter: @IFLScience
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Photo of Massive Planet Orbiting Two Giant Stars Surprises Scientists | PetaPixel

The European Southern Observatory’s (ESO) Very Large Telescope (VLT) has captured a photo of a planet orbiting b Centauri, which challenges many previous theories regarding massive stars and their ability to host planets.

"Finding a planet around b Centauri was very exciting since it completely changes the picture about massive stars as planet hosts," Markus Janson, an astronomer at Stockholm University, Sweden and first author of the new study says.

Publisher: PetaPixel
Date: 2021-12-13T18:32:56 00:00
Twitter: @petapixel
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Bad Astronomy | Orbiting pulsars test relativity | SYFY WIRE

There are places in the Universe where the laws of physics are pushed to their limits –– where temperatures, densities, energy, motion, and gravity are so extreme they read like an astrophysicist's fever dream and sound like a science fiction plot device to everyone else.

And one particular pair of these compact bizarre objects found just a few years ago has proven to be a cosmic playground for a team of astronomers.

Publisher: SYFY Official Site
Date: 2021-12-15T09:00:04-05:00
Twitter: @syfy
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A Spacecraft Orbiting the Moon Just Captured an Image of Saturn - Universe Today

Cameras can be finicky – especially ones primarily used for astronomy. When used for a purpose other than their intended one, sometimes they result in horribly muddled or blurry images. However, sometimes an image works out just right and provides a whole new perspective on a familiar scene.

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Publisher: Universe Today
Date: 2021-12-14T10:02:06-05:00
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Researchers discover water in expansive canyon on Mars - UPI.com

Dec. 16 (UPI) -- A European spacecraft orbiting Mars has identified a "water-rich area" about the size of the Netherlands in the heart of a canyon system that dwarfs the Earth's Grand Canyon.

The European Space Agency said on Wednesday that its ExoMars Trace Gas Orbiter, which the agency launched jointly with Russia's Roscosmos in 2016, spotted "significant amounts of water" in Mars' expansive Valles Marineris canyon system. Researchers published the findings in the journal Icarus .

Publisher: UPI
Date: 2021-12-16T20:52:28-05:00
Twitter: @UPI
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EarthSky | Fornax the Furnace and galaxies galore

Scientists have found six star systems in Fornax to be harboring planets. One of the stars, HR 858 at magnitude 6.3, is just barely visible to the unaided eye for those with good eyesight. The Transiting Exoplanet Survey Satellite TESS found at least three exoplanets orbiting this star in 2019.

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Publisher: EarthSky | Updates on your cosmos and world
Date: 2021-12-17T12:45:35 00:00
Twitter: @earthskyscience
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Space station 'at risk of catastrophic impact as amount of debris orbiting Earth grows' -
Publisher: independent
Twitter: @Independent_ie
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