News Release Archive:

News Release 339 of 1051

February 10, 2009 09:00 AM (EST)

News Release Number: STScI-2009-07

NASA's Great Observatories Celebrate the International Year of Astronomy with a National Unveiling of Spectacular Images


Image: Chandra Image of M101

Chandra Image of M101

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Chandra's image of Messier 101, taken in X-ray light, shows the high-energy features of this spiral galaxy. X-rays are generally created in violent and/or high-temperature events. The white dots are X-ray sources that include the remains of exploded stars as well as material colliding at extreme speeds around black holes. The pink and blue colors are emission from million-degree gas and from clusters of massive stars. The pink emission indicates lower-energy X-rays and the blue higher-energy X-rays. One reason astronomers study Messier 101's X-rays is to better understand how black holes grow in spiral galaxies.

Object Names: M101, NGC 4547, The Pinwheel Galaxy

Image Type: Astronomical

Credit: NASA, CXC, and K. Kuntz (JHU)


The above image is part of a montage:

Montage Image: Spiral Galaxy M101 - NASA's Great Observatories Image Type: Astronomical/Annotated Spiral Galaxy M101 - NASA's Great ObservatoriesPRC2009-07b Spitzer Image of M101 Image Type: Astronomical Spitzer Image of M101 Hubble Image of M101 Image Type: Astronomical Hubble Image of M101

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