Spiral Galaxy M101
M101 is a spiral galaxy like our Milky Way, but about 70 percent bigger. It
is located about 21 million light years from Earth. X-rays from Chandra reveal
the hottest and most energetic areas due to exploded stars, superheated gas, and
material falling toward black holes. Infrared data from Spitzer shows dusty
lanes in the galaxy where stars are forming, while optical data traces the light
from stars.
This image is part of a "quartet
of galaxies" collaboration of professional and amateur astronomers that
combines optical data from amateur telescopes with data from the archives of
NASA missions. NASA's Marshall Space Flight Center in Huntsville, Ala., manages
the Chandra program for NASA's Science Mission Directorate in Washington. The
Smithsonian Astrophysical Observatory in Cambridge, Mass., controls Chandra's
science and flight operations.
Image credit: X-ray: NASA/CXC/SAO; Optical: Detlef Hartmann; Infrared:
NASA/JPL-Caltech
Guillermo GOnzalo Sánchez Achutegui
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