death of a star – pressnews

NASA Webb telescope captures star on cusp of death

16Mar

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Technology

NASA Webb telescope captures star on cusp of death

[ad_1] The Webb Space Telescope has captured the rare and fleeting phase of a star on the cusp of death.NASA released the picture Tuesday at the South by Southwest conference in Austin, Texas. The observation was among the first made by Webb following its launch in late 2021. Its infrared eyes observed all the gas and dust flung into space by a huge, hot star 15,000 light-years away. A light-year is about 5.8 trillion miles. Shimmering in purple like a cherry blossom, the cast-off material once comprised the star's outer layer. The Hubble Space Telescope snapped a shot of the same transitioning star a few decades ago, but it appeared more like a fireball without the delicate details.Such a transformation occurs only with some stars and normally is the last step before they explode, goi...

Perfect explosion! 2 Neutron stars collide, spark amazing spherical Kilonova explosions

[ad_1] Scientists have revealed that the collision of Neutron stars causes spherical Kilonova explosions. This contradicts the earlier theory. Stars are celestial objects millions of years old floating in space. When a star runs out of fuel, its core collapses, crushing together every proton and electron into a neutron. This results in the creation of the densest object known to man, a Neutron star – an object with the mass of a sun squished down to the size of a city, as per NASA. When two neutron stars collide, it results in their merger and causes an explosion, known as a Kilonova.Earlier it was believed that the Kilonova explosion result from a Neutron star merger were flattened discs. However, this new study contradicts it. The study, done by astrophysicists at the University of C...

Death of a star! Awesome tech helps NASA wind back the clock from 160,000 light years away

[ad_1] Astronomers have narrowed the timeline of a distant star's explosive demise with the help of NASA's Hubble Space Telescope and Chandra X-ray Observatory. Have you heard of stars exploding? Yes, the stars in the Milky Way and nearby galaxies do explode and astronomers have even seen the debris from scores of exploded stars. However, it is very difficult to determine or find out the timeline of the star's demise. But now NASA has informed that by studying the spectacular remains of a supernova in a neighboring galaxy using NASA telescopes, a team of astronomers has found enough clues to help wind back the clock. "By combining data from @ChandraXray, @NASAHubble, and the retired Spitzer Space Telescope astronomers have n...