News tagged with supernova remnants

Mach 1000 shock wave lights supernova remnant

When a star explodes as a supernova, it shines brightly for a few weeks or months before fading away. Yet the material blasted outward from the explosion still glows hundreds or thousands of years later, forming a picturesque ...

dateNov 25, 2013 in Astronomy
shares0 comments 27

A star explodes, turns inside-out

( -- A new X-ray study of the remains of an exploded star indicates that the supernova that disrupted the massive star may have turned it inside out in the process. Using very long observations of Cassiopeia A ...

dateMar 29, 2012 in Astronomy
shares0 comments 7

G299.2-2.9, a middle-aged supernova remnant

( -- G299.2-2.9 is an intriguing supernova remnant found about 16,000 light years away in the Milky Way galaxy. Evidence points to G299.2-2.9 being the remains of a Type Ia supernova, where a white dwarf has grown ...

dateOct 13, 2011 in Astronomy
shares0 comments 3

Image: Chandra's view of the Tycho Supernova remnant

More than four centuries after Danish astronomer Tycho Brahe first observed the supernova that bears his name, the supernova remnant it created is now a bright source of X-rays. The supersonic expansion of the exploded star ...

dateJul 25, 2014 in Astronomy
shares0 comments 0

Telescopes help solve ancient supernova mystery

( -- A mystery that began nearly 2,000 years ago, when Chinese astronomers witnessed what would turn out to be an exploding star in the sky, has been solved. New infrared observations from NASA's Spitzer Space ...

dateOct 24, 2011 in Astronomy
shares0 comments 8

The remarkable remains of a recent supernova

( —Astronomers estimate that a star explodes as a supernova in our Galaxy, on average, about twice per century. In 2008, a team of scientists announced they discovered the remains of a supernova that is the most ...

dateJun 26, 2013 in Astronomy
shares0 comments 2