SUNSET: 
Martian Methane Mystery
Three teams find a new gas in Mars's atmosphere that may be indicative of life.
Astro Images in the News:
Opportunity Catches Martian Moon Transits
A Mars rover images a Martian moon crossing the disk of the Sun.
Astronomy & Observing News
Astro Image in the News:
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Astro Image in the News:
You Ain't Seen Nothin' Yet
NASA's Cassini spacecraft returns a new postcard of Saturn.
Blowin' in the Planetary Wind
Astronomers have identified oxygen and carbon in an exoplanetary atmosphere.
Opportunity Finds Hematite and Rolls to Martian Surface
NASA’s Mars rover Opportunity, now on the Martian surface, has found evidence for a mineral that usually forms in water.
Opportunity Ready to Roll, Spirit on the Mend
This mosaic assembled from the Mars Exploration Rover Opportunity's Panoramic Camera images shows rock outcrops less than 10 meters away. These rocks will be one of the first targets for the rover after it rolls off the lander on January 31st.Courtesy NASA / JPL / Cornell University.
Opportunity Rocks, Spirit Awakens
Jubilant scientists and engineers prepare to investigate a new site on Mars — and continue to make progress on fixing Spirit.
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…
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.
One Small Step for Spirit, One Giant Leap for Mankind
NASA's Mars rover is ready to begin exploring the red planet's surface.
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…
Footprint of a Magnetic Exoplanet
Astronomers have found the first extrasolar planet with a magnetic field.
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.
2003: A Year of Triumph and Tragedy
The past 12 months brought with it a roller coaster of emotions in astronomy and space exploration.
Astro Image in the News:
Marsbound
Beagle 2 successfully separates from Mars Express.
New Binary Neutron Star Will Test Einstein
Astronomers have just found the closest ever pair of neutron stars — one of them a pulsar.
The Newest Closest Galaxy
Astronomers have just discovered a new dwarf galaxy that's merging into the Milky Way.
Trucking the World's Largest Telescope Mirror
The world's largest monolithic telescope mirror has arrived safe atop a mountain in Arizona.
