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Posts Tagged ‘Draco’

Supermassive black hole swallows star

August 26, 2011 Comments off

washingtonpost

This illustration released by the journal Nature shows an artist’s conception a surge of X-rays from deep space, which resulted after a black hole tore apart a star. (Amadeo Bachar – AFP/Getty Images) For the first time ever, astronomers say they have witnessed a supermassive black hole devouring a star.

In two papers released Wednesday by the journal Nature, scientists described blasts of radiation so bright and powerful they could only be explained by a luckless, sun-sized star being torn apart by the gravitational forces of a “cosmic monster” — the supermassive black hole.

While scientists say this has happened before, this is the first time they have witnessed the event.

On March 28, a detector on the Earth-orbiting Swift observatory picked up a Read more…

Cosmic burst in distant galaxy puzzles NASA

April 8, 2011 Comments off

breitbart

This NASA image from Swift’s Ultraviolet/Optical (white, purple) and X-ray telescopes (yellow and red) were combined in this view of a cosmic burst at the center of distant galaxy that has burned for more than a week, longer than astronomers have ever seen before, the US space agency said Thursday.

NASA is studying a surprising cosmic burst at the center of distant galaxy that has burned for more than a week, longer than astronomers have ever seen before, the US space agency said Thursday.

Calling it “one of the most puzzling cosmic blasts ever observed,” NASA said it has mobilized the Hubble Space Telescope along with its Swift satellite and Chandra X-ray Observatory to study the phenomenon.

“More than a week later, high-energy radiation continues to brighten and fade from its location,” NASA said in a statement.

“Astronomers say they have never seen such a bright, variable, high-energy, long-lasting burst before. Usually, gamma-ray bursts mark the destruction of a massive star, and flaring Read more…