Warning: The Mars Hoax is back--and it's mutating! Read today's story from Science@NASA to find out what's really going to happen in the night sky on August 27th.

NASA's Dawn spacecraft is now less than a year away from giant asteroid Vesta. Today's story from Science@NASA offers a sneak preview of an "alien, unexplored world" that seems sure to amaze.

A Japanese spacecraft named "Akatsuki" is approaching Venus on a mission that planetary scientists say could end up teaching us a great deal about our own planet Earth.

Mark your calendar: On Thursday, August 12th, an alignment of planets in the sunset sky will kick off the finest meteor shower of 2010, the Perseids.

NASA is hoping for a 'miracle from Mars' as mission controllers wait to hear from Spirit. The rover is trying to survive its toughest winter yet, and may never phone home again.

Researchers using NASA's THEMIS spacecraft have discovered a form of space weather that packs the punch of an earthquake and plays a key role in sparking bright Northern Lights. They call it "the spacequake."

Representatives from more than 25 of the world's most technologically-advanced nations have gathered in Germany today to hear about a problem that may be too big for any one country to handle alone: solar storms.

Researchers are puzzling over a sharper-than-expected collapse of Earth's upper atmosphere during the deep solar minimum of 2008-09.

The European Space Agency's Rosetta probe is beaming back hauntingly beautiful images of mysterious asteroid Lutetia.

Newly-discovered pits on the Moon could be entrances to a geologic wonderland of underground caves and tunnels. Researchers discuss the possibilities in today's story from Science@NASA.

On Sunday, July 11th, a total eclipse of rare beauty will sweep across the South Pacific.

On June 13th, while flying on an airplane at 41,000 feet, high school students from Massachusetts witnessed and recorded the dramatic breakup of Japan's Hayabusa spacecraft over Australia. Their newly-processed video is a must-see.

This Saturday morning, June 26th, there's going to be a lunar eclipse—and for many residents of the USA, it's going to be a big one.

Halfway to Pluto, NASA's New Horizons probe has woken up in 'exotic territory.' Mission controllers are taking the opportunity to give the spacecraft a thorough system's check in preparation for its Pluto flyby in 2015.

For 40 years researchers have puzzled over a strange pattern of ice spirals and chasms around the Martian north pole. New data from NASA's Mars Reconnaissance Orbiter solves the mystery.

On June 3rd, amateur astronomers were startled by a bright flash of light on Jupiter. It appeared to be an impact event--a comet or asteroid hitting the planet's cloudtops. Curiously, though, the "impact" has left no obvious debris. Was it really an impact--or something else? Today's story from Science@NASA discusses the possibilities.

It's immersive, it's explosive, and best of all it's free. On June 7th, NASA will begin sending complimentary DVDs of the smash-hit planetarium show "Journey to the Stars" to teachers and students around the country. Today's story from Science@NASA reviews the show and tells educators how to request their copies.

The sun is waking up from a deep slumber, and the next few years could bring much higher levels of solar activity. NASA is keeping a wary eye on the sun as officials meet in Washington DC to discuss the potential consequences of stormy space weather.

A Soviet robot lost on the dusty plains of the Moon for the past 40 years has been found again, and it is returning surprisingly strong laser pulses to Earth. Researchers plan to use the aged robot to help them measure the Moon's orbit and test theories of gravity.

Ticks cause Lyme disease and many other ailments, but finding the little bloodsuckers by hand can be both disgusting and dangerous. Now there's a better way--via satellite.