681–700 of 804 results

Space Missions

Earth-and-Sun Diamond Ring

Japan's Kaguya spacecraft, orbiting the Moon, captured this spectacular interplanetary vista as both the Sun and Earth rose over the lunar horizon on February 9th.

Space Missions

Dawn's Fleeting Fling with Mars

An asteroid-bound spacecraft sped past the Red Planet today, picking up speed and giving its instruments a little target practice.

Space Missions

Moon's Puzzling, Thick-Skinned Far Side

Ours is a two-faced Moon. The familiar side is mottled with vast plains of ancient lava. But the unseen far side has a thick, rigid crust that doesn't give up its secrets easily.

Space Missions

Cosmic Collision Over Siberia

Don't get too worked up about the pair of spacecraft that collided in orbit on February 10th.

Space Missions

Hayabusa Heads Home

Crippled by multiple system failures, a Japanese spacecraft continues its against-all-odds struggle to return to Earth after landing on an asteroid 3½ years ago.

Space Missions

A Supermassive Double Black Hole?

A far-off quasar seems to contain two giant black holes hurtling around each other less than a light-year apart. They're doomed to spiral together and join in a literally space-shaking crash — but when?

Space Missions

Hubble: You're in Control!

have you ever wanted to have a say in what the world's most powerful telescope looks at? From now until March 31st, you can!

Space Missions

Our Roving Martian Ambassadors

NASA's long-lived rovers, Spirit and Opportunity, have survived five (Earth) years on Mars, far exceeding their planned 90-day missions. How much longer can they last?

Space Missions

Hubble's Replacement Now Taking Shape

Testing has begun on the first of 18 mirror segments for NASA's James Webb Space Telescope, the gargantuan craft that will join the aging Hubble in space as early as 2013 — and eventually replace it as NASA's premier space observatory.


Martian Mega-Rover Gets a "Time Out"

Plagued by a technical obstacles that could threaten its success, a $2 billion Mars rover has been postponed two years by NASA officials. The Mars Science Laboratory's new launch date is 2011.

Stellar Science

Betelgeuse is Making Waves

The famously red supergiant star that marks Orion's shoulder is creating an enormous shock wave as it plows through the interstellar medium. New infrared views from a Japanese space observatory called Akari show what's going on with unprecedented clarity.

Space Missions

Sleuthing Reveals Mars's Watery Past

New findings announced this week suggest that the Red Planet may have had an ancient ocean after all and that buried glaciers of ice have turned up in surprising places.

Space Missions

Chandrayaan 1 is a Hit

India's first deep-space mission has chalked up another success during the first days of its two-year mission: slamming an instrumented probe into the lunar surface.

Space Missions

Phoenix Chills Out, Mission Ends

As the Sun set slowly over the Martian polar plain, a dust storm robbed NASA's plucky lander of the sunlight it needed to operate.The craft's most recent and presumably final communication came on November 2nd.

Space Missions

Chandrayaan 1 in Lunar Orbit

So far, so good for India's first attempt to explore the Moon. Chandrayaan 1 is safely in lunar orbit after a two-week series of rocket burns.

Space Missions

Amazing Close-ups of Enceladus

Ever wonder what it'd be like to view the icy terrain of Saturn's enigmatically active moon as if you were just 12 miles above it? Now you can, thanks to Cassini's close brush with Enceladus on Halloween.

Space Missions

Hubble Returns to Work

After a month-long hiatus caused by an electronics failure, the Hubble Space Telescope has resumed its observations of the cosmos. But a final house call by Space Shuttle astronauts will have to wait until NASA engineers can round up some spare parts.

Solar System

Mercury Gets a Second Look

When NASA's Messenger spacecraft flew past the innermost planet on October 6th, it mapped another 30% of the surface never before viewed by spacecraft and gave scientists tantalizing hints of what Mercury is all about.

Chandrayaan 1 in orbit

Space Missions

India's First Moon Shot

There's a new player in deep-space exploration, as India launches a highly instrumented spacecraft destined for lunar orbit.

Space Missions

NASA Satellite Spots New Type of Pulsar

The Fermi Gamma-ray Space Telescope has made its first major discovery.