It’s not just the discovery of53Mn that’s significant; it’s the concentration. Some53Mn is expected to drift down to Earth as cosmic dust. But it’s unusual to find more of it, like the researchers behind this study did. And its presence means there definitely was a supernova...
(redirected from Near earth supernova)Also found in: Thesaurus, Encyclopedia. su·per·no·va (so͞o′pər-nō′və) n. pl. su·per·no·vae (-vē) or su·per·no·vas A rare celestial phenomenon involving the explosion of a star and resulting in an extremely bright, short...
There is strong evidence — including the detection in different locations around the globe of a radioactive type of iron — that supernovae occurred close to Earth between about two and eight million years ago. Researchers estimate these supernovae were between about 65 and 500 light-years awa...
23, 1987, the supernova was one of the brightest observed and closest to Earth, providing astronomers with a unique opportunity to study the phases before, during and after the death of a star, officials said in a statement from the European Space Agency (ESA). To celebrate the 30th ...
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Obviously, those supernovas were not close enough to exterminate life on Earth—but they were close enough to wrap our solar system in a bubble of hot gas that persists millions of years later. "This is a significant discovery,' said Galeazzi. "[It] affects our understanding of the area ...
Named Supernova 1987A, it was the closest supernova explosion witnessed in almost 400 years. The supernova's close proximity to Earth allows astronomers to study it in detail as it evolves. Now, the supernova debris, which has faded over the years, is brightening. ...
The stand-off distance of Betelgeuse at the time of its detonation is estimated to fall between 150 and 300-pc—again, affording no possible threat to Earth's biosphere. Temporally, the next most likely, close, potential Type Ic supernova to the Sun is the Wolf-Rayet star within the γ ...
On 20 September 2016, amateur astronomer Victor Buso from Rosario, Argentina was testing his telescope.[22][23] When taking several photographs of galaxy NGC 613, Buso chanced upon a supernova that had just become visible on Earth. After examining the images, he contacted the Instituto de ...