A supernova remnant 8,200 light years away.
September 18th, 2006
A supernova remnant and pulsar located 6000 light years from Earth.
October 24th, 2006
A supernova remnant located in the Large Magellanic Cloud
November 29th, 2006
Four newly-formed planetary nebulas in the Milky Way Galaxy.
May 10th, 2006
A galaxy 12 million light years from Earth that is undergoing a burst of star formation.
April 24th, 2006
A region of massive star formation about 6,000 light years from Earth in the Perseus arm of the Milky Way.
December 18th, 2006
A spiral galaxy about 25 million light years from Earth, also known as M106.
April 10th, 2007
An elliptical galaxy known in the Virgo cluster about 50 million light years away.
October 5th, 2006
This Chandra X-ray image of the Galactic Center shows three massive star clusters near Sagittarius A*.
July 19th, 2006
A galaxy cluster at a distance of about 2.3 billion light years from Earth.
September 11th, 2008
Central region of a galaxy 2.5 million light years from Earth.
June 5th, 2006
A galaxy cluster located about 2.6 billion light years away in the constellation of Camelopardus.
November 2nd, 2007
A system with two merging galaxies in the center.
March 29th, 2007
A massive spiral galaxy about 100 million light years from Earth.
February 3rd, 2006
A supernova remnant that could match the oldest known supernova in recorded history.
August 8th, 2007
A large spiral galaxy about 50 million light years from Earth.
March 6th, 2006
A system where at least two massive galaxy clusters have collided.
August 16th, 2007
A supernova remnant about 7,000 light years from Earth
February 15th, 2006
The remains of a massive star that exploded, perhaps being witnessed by Chinese astronomers in 386 A.D.
January 30th, 2007
A radio galaxy 1.4 billion light years from Earth.
December 17th, 2007
A giant cluster of galaxies about 220 million light years from Earth with galaxy ESO 137-001 plunging into it.
September 20th, 2007
A system where a neutron star is in orbit with a star several times the mass of the Sun.
June 27th, 2007
A region of star formation about 420 light years from Earth.
September 13th, 2007
A central galaxy in the center of a massive cluster of galaxies, 4.8 billion light years away.
May 30th, 2007
A binary system in the galaxy M33 where a black hole is in orbit around a large companion star.
October 17th, 2007
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