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Tech & Science A star died and this bizarre space blob was born

06:55  19 october  2019
06:55  19 october  2019 Source:   cnet.com

Alexei Leonov, 1st human to walk in space, dies in Moscow

  Alexei Leonov, 1st human to walk in space, dies in Moscow Alexei Leonov, the legendary Soviet cosmonaut who became the first human to walk in space 54 years ago — and nearly didn't make it back into his capsule — has died in Moscow. Russian space agency Roscosmos made the announced on its website on Friday, without providing a cause for his death. Russian media earlier reported that Leonov had had health issues for several years.

This colorful blob of stuff in space has a fascinating history. It's a supernova remnant, the leftover bits from after the explosive death of a star . We can see it thanks to NASA's Chandra X-ray Observatory, which can detect X-ray emissions that are beyond the reach of the human eye. Tycho gets its name

A Star Is Born is a 2018 American musical romantic drama film produced and directed by Bradley Cooper and written by Eric Roth, Cooper and Will Fetters.

This composite image shows the Tycho supernova as seen by the Chandra X-ray Observatory. NASA/CXC/SAO.; Optical: DSS© Provided by CBS Interactive Inc. This composite image shows the Tycho supernova as seen by the Chandra X-ray Observatory. NASA/CXC/SAO.; Optical: DSS

This colorful blob of stuff in space has a fascinating history. It's a supernova remnant, the leftover bits from after the explosive death of a star. We can see it thanks to NASA's Chandra X-ray Observatory, which can detect X-ray emissions that are beyond the reach of the human eye.

Tycho gets its name from Danish astronomer Tycho Brahe, who noticed its brightness in the night sky back in 1572.  NASA released the view of the remnant on Friday and described it as "clumpy and lumpy."

First man to conduct spacewalk, Alexei Leonov, dies

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A Star is Born ’s charm relies so precisely on the chemistry between its protagonists—the film’s most joyful moments are when Ally and Jackson are in a near transcendent state of rapport—that disliking the central relationship makes it incredibly difficult to enjoy much of the film or consider it anything other

Lyman-Alpha blobs are among the rarest denizens of the distant universe. They’re giant clouds of hydrogen gas spanning hundreds of thousands of light This is an important question because Lyman-Alpha blobs appear to be the cosmic nurseries where the largest galaxies in the universe are born .

The star's death was spectacular. "This particular supernova was a Type Ia, which occurs when a white dwarf star pulls material from, or merges with, a nearby companion star until a violent explosion is triggered," the Chandra team said in a release.

This 3D-printed supernova model resembles the Chandra X-ray view of Tycho's supernova remnant. RIKEN/G. Ferrand, et al & NASA/CXC/SAO/A. Jubett, N. Wolk & K. Arcand© Provided by CBS Interactive Inc. This 3D-printed supernova model resembles the Chandra X-ray view of Tycho's supernova remnant. RIKEN/G. Ferrand, et al & NASA/CXC/SAO/A. Jubett, N. Wolk & K. Arcand

Astronomers are curious about Tycho's clumpiness and whether these shapes formed during the explosion or if they happened later. Scientists ran a computer simulation that suggests the lumps came about during the explosion.

"While scientists are not sure how, one possibility is that star's explosion had multiple ignition points, like dynamite sticks being set off simultaneously in different locations," the observatory team said. You can read more about it in a paper published in The Astrophysical Journal.

'Have you been hacked?' Cricketer Shane Watson's Instagram account is flooded with raunchy pictures of scantily-clad women and bizarre videos of wannabe gangsters

  'Have you been hacked?' Cricketer Shane Watson's Instagram account is flooded with raunchy pictures of scantily-clad women and bizarre videos of wannabe gangsters The former Australian cricketer's account saw over a score of bizarre photos uploaded by a hacker in less than an hour on Tuesday. His Instagram bio was changed to 'JOIN SHADOW REALM , LINK IN BIO ! FOR FREE NUDES'. The hack comes days after his Twitter account's profile picture was changed to a woman, with his account name reading 'crimin.al' and his bio to 'FREE DA GUYS'. His Twitter account was flooded with fat-shaming tweets and referred to Indigenous Australians as 'simply not human'.

A VAST intergalactic space ' blob ' is on collision course with our home galaxy, NASA has reported. The gigantic gaseous globule, dubbed Smith's Previously astronomers thought the Smith Cloud was a failed galaxy, completely devoid of stars but the discovery of certain elements found it was born out

The hunter stands bolt upright in the evening sky, with the nebula visible below the belt.

a star in the middle of a clear blue sky: This composite image shows the Tycho supernova as seen by the Chandra X-ray Observatory.© CNET

This composite image shows the Tycho supernova as seen by the Chandra X-ray Observatory.

A different team published a paper about creating a model of a Type Ia supernova that can be 3D-printed. You may never be able to touch a real supernova, but you can at least hold a model of one in the palm of your hand.

Hubble wows with stunning space images

Nobody really knows if there are other ‘Earths’ out there .
Are there other Earth-like planets out there in the cosmos? We simply don't know. To help answer the question, researchers from UCLA came up with a new framework for analyzing the makeup of exoplanets using data from the W. M. Keck Observatory and other high-powered telescopes. Based on their observations, the researchers are making a rather bold declaration: Earth isn’t terribly unique.

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