SUNSET: 
Hubble's Really Big Picture
By stitching together 78 high-resolution Hubble Space Telescope photos, astronomers have created Hubble's widest "deep field."
Opportunity Lands, Spirit Revives
This 360° panorama was assembled from some of the first images beamed to Earth from NASA's Opportunity rover after it landed at Meridiani Planum on Mars.Courtesy NASA/JPL. NASA got a double dose of good news from Mars last night. The Opportunity rover landed successfully on Meridiani Planum and began sending…
Spirit Out Indefinitely
NASA's Mars rover is communicating with Earth, but it remains in critical condition.
Spirit's Communication Breakdown
Before the recent communication glitch, Spirit's Panoramic Camera took a series of images of the lander, which were assembled into this near-true-color mosaic.Courtesy NASA / JPL / Cornell University. [Updated 10:05 a.m. EST, January 23] Mission controllers at the Jet Propulsion Laboratory are experiencing a potentially fatal communication problem with…
Hubble Supporters Fight Back
Astronomers and their supporters in Congress are beginning to fight back against NASA's decision to stop servicing the Hubble Space Telescope.
Hubble Gets the Heave-Ho
NASA has announced that the Hubble Space Telescope will not be serviced again, signaling the beginning of the end for the orbiting observatory.
Spirit Tests Soil, Visits First Rock
NASA's Mars rover analyzes a patch of Martian soil and then heads off to a rock called Adirondack.
The Most Massive Star
A luminous blue variable star located some 45,000 light-years away could be the most massive and perhaps the most luminous star ever discovered.
One Small Step for Spirit, One Giant Leap for Mankind
NASA's Mars rover is ready to begin exploring the red planet's surface.
Finding Our Nearest Stellar Neighbors
Astronomers are trying to hunt out everything that exists within 32 light-years of Earth.
Spirit Finds Carbonates, Prepares to Rove
This near-true-color scene is part of the 360° panorama taken by Spirit's Pancam. The full image is a mosaic of 225 images taken through three color filters, painstakingly assembled by more than 25 scientists and engineers. It is 75 frames across and three frames tall; for larger views of the…
Comet Catcher
The nucleus of Comet Wild 2, with an average diameter of about 5 kilometers, is imaged by Stardust’s navigation camera from a distance of approximately 500 kilometers. The spacecraft captured 72 images of the comet's nucleus during the encounter, with an anticipated peak resolution of about 30 meters.Courtesy NASA/JPL. On…
Footprint of a Magnetic Exoplanet
Astronomers have found the first extrasolar planet with a magnetic field.
Diving Globular Cluster Makes a Starry Splash
Did a globular star cluster passing through the Milky Way cause new stars to form?
More Galaxies that Jump the Gun
Astronomers have found a distant string of galaxies that took shape earlier than current cosmology can explain.
The Sun's Closest Twins
Astronomers hope to learn much from our Sun's doppelgangers.
Explaining Supernova Explosions
Astronomers are one step closer to understanding how white dwarfs blow themselves up.
Astro News Briefs: December 29–January 4
Mars Express gets into position and NASA samples a comet.
A Galactic Striptease
Astronomers have caught the spiral galaxy C153 performing an involuntary striptease act as it plunges through the heart of a massive galaxy cluster.
Dissecting a Microquasar
Astronomers are still trying to identify what powers a mysterious star system in Aquila.
