NASA is inviting members of the general public from around the world to suggest a new name for the Gamma-ray Large Area Space Telescope, otherwise known as GLAST, before it launches in mid-2008.

A team of scientists has just set off to explore a strange lake in Antarctica, which may be home to exotic forms of microscopic life.

NASA's Messenger spacecraft has beamed back some surprising new data from the planet Mercury. Highlights include a weird crater nicknamed "the Spider," a planetary tail of hydrogen atoms, and measurements that show giant Caloris basin is even bigger than researchers thought.

The two brightest planets are converging for a beautiful close encounter on Friday morning, February 1st.

NASA is preparing to launch a new space telescope named GLAST to study the most violent explosions in the history of our Universe.

Last week's historic flyby of Mercury by NASA's MESSENGER spacecraft gathered 500 megabytes of data and more than a thousand high-resolution photos covering nearly six million square miles of previously unseen terrain.

A cutting-edge laboratory has opened in Alabama. Its mission: to combat diseases ranging from asthma to malaria to stroke using data from NASA satellites. Space scientists and public health officials are working together to train the doctors of tomorrow in this far-out approach to medicine.

Images from NASA telescopes are jewels of the space program, marvelous to behold. But how do you behold them when you can't see? The answer lies between the covers of a new NASA-funded book written in Braille, Touch the Invisible Sky.

At a pivotal moment of the solar cycle, the NASA/ESA Ulysses spacecraft is flying over the sun's mysterious North Pole.

Hang on to your cell phones, a new solar cycle is underway. Solar Cycle 24 began last week with the appearance of a magnetically "backward" high-latitude sunspot.

NASA is bringing high-tech satellite images and visualization tools to bear on the unique environmental problems of Central America.

NASA-funded astronomers are monitoring a Tunguska-sized asteroid that will pass within 30,000 miles of Mars on Jan. 30, 2008. Based on data currently available, the space rock has a 1-in-75 chance of actually hitting Mars and blasting a crater more than half-a-mile wide.

Consider it an early Christmas gift: On Dec. 24th the Moon and Mars are putting on a beautiful late-night sky show.

A powerful jet from a supermassive black hole is blasting a nearby galaxy and possibly causing profound problems for planets in the jet's path.

The solar physics community is abuzz this week. No, there haven't been any great eruptions or solar storms. The source of the excitement is a modest knot of magnetism that popped up on the sun, possibly heralding the start of a new solar cycle.

NASA's fleet of THEMIS satellites have made some surprising new discoveries about outbursts of Northern Lights and the source of their power. The discoveries include giant magnetic ropes that connect Earth to the Sun and explosions in the outskirts of Earth's magnetic field.

Astronomers using Japan's Hinode spacecraft have discovered a major new form of solar activity: abundant x-ray jets.

Mark your calendar: The best meteor shower of 2007 peaks on Friday, December 14th.

From the deserts of the American southwest to the pine forests of the Deep South, drought-weary residents have one thing on their minds: "I wish it would rain!" Technically, what they should be wishing for is "more streamflow." Find out why in today's story.

Astronomers using NASA's Chandra X-ray Observatory have discovered one of the fastest stars ever seen--a "cosmic cannonball" that is challenging theories to explain its blistering speed.

New research by NASA scientists shows that moondust kicked up by the jets of lunar landers can go on a fantastic journey, completely circling the Moon before settling back to the ground. This interesting phenomenon may affect the planning of lunar outposts and other activities as NASA prepares its return to the Moon.

During the past month, Mars has doubled in brightness and now it is putting a nice show for backyard stargazers. A good night to look is Nov. 26th when Mars has an eye-catching close encounter with the Moon.

NASA scientists have developed a fast and easy-to-build satellite named FASTSAT that could accelerate the pace of space exploration.

How do you bring a 200,000-pound rocket booster back to Earth after it catapults its payload toward the moon? NASA has answered that question with a successful test of a giant "moon rocket" parachute in the Arizona desert.