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Recent Podcast
A Tour of Eta Carinae
A Tour of Eta Carinae
New Chandra data are helping astronomers better understand how the two stars in Eta Carinae interact with one another through powerful winds blowing off their surfaces. (2014-08-27)


Medusa in 60 Seconds

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Narrator (Megan Watzke, CXC): NGC 4194 is a galaxy that is found about 110 million light years from Earth. This image of NGC 4194, also known as the Medusa galaxy, is a composite of X-rays from Chandra, seen in blue, and optical light data from Hubble, which are colored orange. Located above the center of the galaxy, the "hair" of Medusa is a tidal tail formed by a collision between galaxies. The bright X-ray source found on the left side of Medusa's hair is a black hole. A recent study of the Medusa galaxy and nine other galaxies measured the connection between the formation of stars and the production of so-called X-ray binaries. These systems, which contain either a black hole or a neutron star in orbit around a normal star, appear as the bright blue point-like sources in this image of Medusa.

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