Browse Archive
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Hubble Images Contest-Winning Triplet Galaxy
Hubble photographed the winning target in the Space Telescope Science Institute's "You Decide" competition: a group of galaxies called Arp 274.
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NASA Joins 'Around the World in 80 Telescopes'
A collection of NASA missions will be involved in a live event Friday, April 3, that will allow the public to get an inside look at how these missions are run.
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Hubble Finds Hidden Exoplanet in Archival Data
A powerful image-processing technique may allow astronomers to discover extrasolar planets lurking in over a decade's worth of Hubble Space Telescope archival data.
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EPOXI Team Develops New Method to Find Alien Oceans
A 'pale blue dot' is the best picture we will get of an Earth-like extrasolar world using even the most advanced telescopes planned for the next couple decades. If we can determine that the planet has oceans of liquid water, it greatly increases the likelihood that it supports life.
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Erratic Black Hole Regulates Itself
Chandra examines black holes that may have a mechanism to control their growth rate.
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Hubble Finds Rare Progenitor to a Supernova
Hubble has identified a star that was one million times brighter than Earth's sun before it exploded as a supernova in 2005.
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Recipe for an Earth
Sean Raymond is helping astronomers figure out how planets like Earth are formed.
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International Team Explores a Blazar
An international team of astrophysicists using telescopes on the ground and in space have uncovered surprising changes in radiation emitted by an active galaxy.
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Hubble Snaps Saturn Moon Transit
On Feb. 24, 2009, the Hubble Space Telescope took a photo sequence of four moons of Saturn passing in front of their parent planet.
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Hearts of Galaxies Close in for Cosmic Train Wreck
A new image from NASA's Spitzer Space Telescope offers a rare view of an imminent collision between the cores of two merging galaxies, each powered by a black hole with millions of times the mass of the sun.