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Spacecraft and Space Missions

Space-Station Astronomy

Solar telescopes are set to be installed on the International Space Station today. A trio of instruments will be added to the new Columbus module.

Spacecraft and Space Missions

NASA Wants You!

The US space agency wants to give its soon-to-be-launched gamma-ray observatory a new name, and it has opened the floor for nominations. Do you have the perfect moniker for the next Great Observatory?

Spacecraft and Space Missions

Mercury's "Better Half"

When it swept by the innermost planet on January 14th, NASA's Messenger spacecraft showed us a side of Mercury never before seen. After two weeks of intensive study, mission scientists have shared some of the flyby's intriguing results — including views of a "spidery" crater that has them stumped.

Stardust encounters Comet Wild 2

Spacecraft and Space Missions

A Stardust-Free Comet

When NASA sent a spacecraft to grab samples of a comet and return them to Earth, scientists had high hopes that they'd finally be able to decipher how the solar system formed. Boy, were they wrong!

Spacecraft and Space Missions

A Bird's-Eye View of the Sun

What's it like to coast high over our star? The European-built spacecraft Ulysses is doing that right now — for its third and likely final time.

Messenger's Mercury

Solar System

Reunion with Mercury

For the first time in nearly 33 years, mission controllers have guided a spacecraft past Mercury, a fire-and-ice world that may hold many keys to the solar system's formation.

Hubble Servicing

Spacecraft and Space Missions

High Hopes for Hubble

Preparations are well under way for the August 2008 servicing mission to the Hubble Space Telescope.

Spacecraft and Space Missions

Cassini's Popularity Contest

After a month-long contest, the Cassini Imaging Central Laboratory for Operations (CICLOPS) has announced which images of Saturn are fan favorites.

Spacecraft and Space Missions

You Can't Go Home (or Work) Again

Visiting where I worked 20 years ago reveals a changed place.

Spacecraft and Space Missions

Deep Impact's New Assignments

Put to sleep after its smash success in 2005, one of NASA's interplanetary craft is getting a chance to search for extrasolar Earths and to visit a second comet.

Solar System

Lightning on Venus

The world next door seemed hellish enough with an atmosphere 90 times the sea-level pressure on Earth and surface temperature of 900°. Now, scientists say, there's lots of lightning — and what little water it has seems to be escaping to space.

Spacecraft and Space Missions

Earth at Night: Not a Pretty Sight

Rosetta's nighttime snapshots of the Eastern Hemisphere show that the fight against light pollution has a long way to go.

Celestial News & Events

Call for Images of Venus

Venus Express project scientists are inviting amateur and professional astronomers to contribute Earth-based images of the planet made at infrared, visible, and ultraviolet wavelengths.

Spacecraft and Space Missions

Good Morning Earth

The Kaguya spacecraft provides a nice way to start the day with a look back home.

Spacecraft and Space Missions

Rosetta Attacks!

Briefly mistaken for an asteroid headed toward Earth, a European-built comet chaser zips by en route to its deep-space rendezvous.

Spacecraft and Space Missions

China Reaches the Moon

A Chinese spacecraft named Chang'e 1 is preparing to study the Moon at close range after successfully settling into lunar orbit.

Galaxies

The Record Stellar-Mass Black Hole

In a nearby galaxy, astronomers find the biggest-ever small black hole.

Spacecraft and Space Missions

Seeing More Red

A new series about going to Mars premieres this week. But that's just the beginning of your multimedia adventure.

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Spacecraft and Space Missions

Meteor Showers on Mars

Scientists now know what meteor showers occur in the rarefied atmosphere above Mars. So how come NASA's intrepid rovers can't see them?

Spacecraft and Space Missions

Titan's Frigid Shores

NASA's Cassini orbiter continues mapping Saturn's largest moon — and finding prime lakefront real estate.

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