X-rays bounced off gas clouds near the Milky Way's supermassive black hole.
January 10th, 2007
A planetary nebula about 7,000 light years from Earth in the constellation of Circinus
September 27th, 2007
Clusters of galaxies about 5.7 billion light years from Earth.
July 24th, 2007
A four-way collision of galaxies about 5 billion light years away.
August 6th, 2007
A 9.3-square-degree survey taken in the constellation of Bootes.
March 12th, 2007
A young supernova remnant 20,000 light years from Earth, in the constellation Centaurus.
October 23rd, 2008
A spiral galaxy about 60 million light years from Earth in the constellation of Fornax.
April 12th, 2007
A compilation of long observations on the same patch of sky.
October 25th, 2007
A star between 100 and 150 more massive than the Sun, about 7,500 light years from Earth.
June 20th, 2007
A supernova remnant believed to be created when a star exploded over 400 years ago.
January 9th, 2007
Sombrero Galaxy: A Great Observatories View
April 30th, 2007
A complex of star formation about 200,000 light years from Earth.
August 30th, 2007
Also known as Andromeda and the nearest major galaxy to the Milky Way.
May 22nd, 2007
A nearby star-forming region about 7,000 light years from Earth.
February 15th, 2007
A region of active star formation about 10,000 light years from
November 15th, 2007
Jupiter as seen at a distance of about 400 million miles.
March 1st, 2007
A supernova located in the Large Magellanic Cloud about 160,000 light years from Earth.
June 13th, 2007
At the center of M81 is a supermassive black hole that is about 70 million times more massive than the Sun.
June 18th, 2008
A neutron star created when a massive star exploded about 3,700 years ago.
November 28th, 2007
A rich cluster of young stars about 1,500 light years from Earth.
October 3rd, 2007
The core of the Milky Way at a distance of some 26,000 light years from Earth.
November 10th, 2009
The most recent supernova in our Galaxy has been discovered by tracking the rapid expansion of its remains.
May 14th, 2008
A supernova remnant created from the death of a massive star about 2,000 years ago.
July 7th, 2007
A collision of two large clusters of galaxies about 3.8 billion light years away.
October 30th, 2008
A galaxy cluster located about 740 million light years from Earth.
December 16th, 2008
A sample of nine galaxies each containing supermassive black holes in their centers.
January 10th, 2008
A supernova that appeared in the galaxy NGC 1404 in late 2007.
February 13th, 2008
A supernova remnant, about 3,000 years old, in the Large Magellanic Cloud.
March 12th, 2008
The central region of a rich galaxy cluster about 250 million light years from Earth.
August 20th, 2008
30 Doradus is one of the largest massive star forming regions close to the Milky Way.
December 11th, 2008
Also known as the Cat's Eye, this planetary nebula is located about 3,000 light years from Earth.
July 30th, 2008
This deep Chandra X-ray Observatory image shows the supernova remnant Kes
75, located almost 20,000 light years away.
February 21st, 2008
The remnant of an exploded star in the Large Magellanic Cloud galaxy 160,000 light years from Earth.
February 22nd, 2007
A globular cluster located in the Milky Way galaxy.
April 28th, 2008
An active galaxy at a distance of 10 million light years from Earth.
January 9th, 2008
A supernova remnant and pulsar located 6000 light years from Earth in the constellation of Taurus.
November 5th, 2008
This composite image shows the galaxy cluster Abell 521, located about 2.9 billion light years from Earth.
October 15th, 2008
A supernova remnant with a light echo in the Large Magellanic Cloud.
March 20th, 2008
A massive elliptical galaxy about 55 million light years away in the Virgo Cluster.
November 10th, 2008
January 30th, 2009
A young star in the Taurus region of star formation, about 450 light years from Earth.
April 9th, 2008
Spectacular death of a star in the constellation Taurus was observed on Earth as the supernova of 1054 A.D.
November 23rd, 2009
A powerful collision of two galaxy clusters about 5.6 billion light years away.
August 27th, 2008
A large spiral galaxy about 25 million light years away in the constellation Ursa Major.
November 24th, 2008
The largest galaxy in the Virgo cluster of galaxies at a distance of 60 million light years away.
August 5th, 2008
A supernova remnant about 7,000 light years from Earth.
December 7th, 2001
An elliptical galaxy at a distance of about 300 million light years.
February 5th, 2008
This composite shows a classic example of mixed-morphology supernova remnant known as W28.
June 2nd, 2008
A stellar-mass black hole with about 14 times the Sun's mass in the Milky Way.
March 25th, 2009
A supernova in Circinus galaxy about 12 million light years away.
September 25th, 2008
A region of active star formation about 4,000 light years from Earth.RCW 108:
Massive Young Stars Trigger Stellar Birth
October 6th, 2008
A star cluster about 20,000 light years from Earth.
January 23rd, 2008
An elliptical galaxy about 51 million light years from Earth in the constellation Virgo.
July 16th, 2008
A galaxy cluster about 840 million light years from Earth.
September 14th, 2009
Giant reservoirs of hydrogen gas about 10 billion light years away.
June 24th, 2009
A 1700-year-old pulsar and its nebula, located about 17,000 light years from Earth.
April 3rd, 2009
The supernova remnant that was Chandra's "First Light" image that has been observed over time.
January 6th, 2009
A supernova remnant in the Milky Way with a neutron star at its center.
November 4th, 2009
A 400 by 900 light-year mosaic of images located about 26,000 light years from Earth in the constellation Sagittarius.
September 22nd, 2009
A ridge-like structure near the center of the Milky Way of X-ray emission discovered by earlier telescopes.
April 29th, 2009