441–460 of 804 results

Space Missions

New Splat on Mars

NASA’s Mars Reconnaissance Orbiter HiRISE camera captured this stunning image of a fresh impact on the Martian surface.

Exoplanets

Shedding Light on Circumbinary Systems

Astronomers are beginning to understand the unlikely formation and dangerous survival of exoplanets circling binary stars.

Solar System

First Mercury Globe Now Available

Sky & Telescope announces the first-ever globe of Mercury, pieced together from the latest images taken by the Messenger spacecraft. It's now available on our online store!

Space Missions

Sleep of Death for China's Lunar Rover?

Reports suggest that something went wrong as the Yutu rover prepared to hibernate through the long lunar night. The glitch could be the end of the little robot.

Space Missions

Opportunity's 10-year Martian Marathon

Can you believe it? A robotic rover designed to last 90 days on the Red Planet is celebrating 10 years of successful exploration on the Red Planet — even taking a "selfie" for its handlers back on Earth.

Ceres

Space Missions

"Dwarf Planet" Ceres Exhales Water

There'll be a new wrinkle facing NASA's Dawn spacecraft when it reaches Ceres next year: what's causing this big round ball to give off puffs of water vapor?

Solar System

The End of Rosetta's Big Sleep

Europe's comet-chasing spacecraft woke up after a 957-day-long hibernation to begin the most comprehensive comet study to date. Part of its mission: attempt to place an instrumented lander on a comet’s nucleus for the first time.

Space Missions

Gaia Launches to Pinpoint a Billion Stars

Gaia launched flawlessly Thursday morning at 9:12 UTC (4:12 a.m. Eastern Standard Time). This long-awaited mission will precisely map the distances and motions of 1 billion stars in our galaxy.

Yutu

Solar System

Chang'e 3 Brings Rover to Lunar Surface

For the first time since 1976, a spacecraft has landed safely on the Moon. Within hours, the Chinese spacecraft Chang'e 3 had deployed an instrumented rover.

Space Missions

Curiosity Finds a Once-Habitable Mars

Ancient Mars seems to have had all the necessities as a comfy habitat for microbial life.

Solar System

China Launches Lunar Mission

If all goes well, on December 14th the Moon will host its first soft-landing spacecraft since 1976.

Comet ISON movie

Space Missions

Comet ISON Becomes a Nail-Biter

Is the comet dying, just three days before its closest pass by the Sun? There are signs that its nucleus has stopped producing anything.

Space Missions

MAVEN Heads to Mars

NASA's next orbiter has successfully launched and is en route to the Red Planet. When it arrives, it will pry into the secrets of Mars's climate, both past and present, and hopefully reveal how the cold, dry world lost most of its ancient atmosphere.

Exoplanets

Kepler Mission Hits 3,500 Candidates

The Kepler team has released its analysis of the mission’s first three years of observations. The haul includes 10 Earth-size (and probably rocky) exoplanets in their stars’ habitable zones, and the stats show such planets are common.

Solar System

Indian Mars Mission Launches

India's first mission to the Red Planet launched successfully November 5th from a barrier island off the country's coastline. The mission will study Mars's atmosphere and surface and is an important milestone for the country's space agency.

Space Missions

Juno's Hi-and-Bye Flyby

A NASA spacecraft bound for Jupiter made a close flyby of Earth to gain speed for the long trek outward, and amateur astronomers prepared to watch its passage.

Space Missions

To Catch a Comet

A balloon-borne mission launching from the Southwest will aim a telescope at the approaching Comet ISON. While it won't observe the comet at its best, the mission might reveal details about the composition of the icy body and the family it comes from.

Space Missions

Methane Goes Missing on Mars

The Curiosity rover conducted super-sensitive tests of the Red Planet's atmosphere for methane — the most abundant hydrocarbon in the solar system — and found none. What does this finding mean for the search for Martian life?

Space Missions

Deep Impact Meets Its End

Primarily known for its up-close comet observations, the Deep Impact spacecraft went on the fritz in mid-August. The mission team scrambled to reestablish communication, but efforts were unsuccessful.

Solar System

Asteroid Scheme Still Under Way

Despite funding pushback in the House of Representatives, NASA is full steam ahead in plans for its asteroid retrieval mission.