black holes nasa – pressnews

[ad_1] Using NASA’s Chandra X-ray Observatory Telescope, astronomers have found out hundreds of previously hidden, or buried black holes. Using NASA's Chandra X-ray Observatory Telescope, astronomers have found out hundreds of previously hidden, or buried black holes. This discovery is going to help astronomers provide a more accurate census of black holes in the universe.The black holes in this new study are the supermassive variety that contain millions or even billions of times the mass of the Sun. Astronomers think that almost all large galaxies harbour giant black holes in their centres, only some of the black holes will be actively pulling in material that produce radiation, and some will be buried underneath dust and gas. By combining data from the Chandra Source Catalogue and ...

[ad_1] A recent NASA study could change the understanding of gamma-ray bursts and black hole formation. Know all about it here. Almost a year ago on December 11, Earth was witness to a high energy gamma-ray burst (GRB) which was suspected to be emitted from the outskirts of a galaxy around 1 billion light-years away. What made this cosmic burst unusual was the fact that it did not submit to any one pre-defined category of gamma-ray bursts. It left scientists baffled and put a doubt into their previous understanding of GRBs.According to NASA, GRBs are classified into two categories – long bursts and short bursts. Long bursts which emit gamma rays for two seconds or more and originate from the formation of dense objects like black holes in the centers of massive collapsing stars. Short ...

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Astronomers dig out hidden black holes with NASA’s Chandra Telescope

Mysterious Gamma-ray burst baffles scientists, causes NASA rethink on how black holes are formed