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Recent Podcast
A Quick Look at Black Hole Growth in Chandra Deep Field South
A Quick Look at Black Hole Growth in Chandra Deep Field South
Scientists have discovered that supermassive black holes in the centers of galaxies may be growing faster than their host galaxies. (2018-02-16)

Cassiopeia A in 60 Seconds

Narrator (April Hobart, CXC): A new discovery from a famous exploded star has provided the first evidence for a bizarre state of matter in its core. The news comes from the studies of Cassiopeia A, the remains of a massive star that was seen exploding in Earths sky over 300 years ago. A sequence of observations from NASAs Chandra X-ray Observatory over the past decade shows that the ultradense core of the star left behind after the explosion known as a neutron star has cooled by about 4%. This information, along with theoretical work, indicates that the neutron star contains a mysterious state of matter known as a superfluid. This research will help scientists better understand nuclear interactions in matter at the highest densities known anywhere either here on Earth or out in space.

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