A radar instrument co-sponsored by NASA on the European Space Agency's Mars Express orbiter has looked beneath the surface of Mars and opened up a new dimension for planetary exploration.
It's a good thing there's no speed limit on Mars, because the next parachute to fly to the red planet will deploy faster than you can legally drive on a California freeway!
Mars scientist Diana Blaney studies the Red Planet from Hawaii.
NASA-funded researchers are refining a tool that could not only check for the faintest traces of life's molecular building blocks on Mars, but could also determine whether they have been produced by anything alive.
NASA's durable Mars Exploration Rover Opportunity is the first robot to travel 10 kilometers on Mars. It reached that total (6.2 miles) during a drive on Feb. 6, seen above.
NASA's Phoenix Mars Lander will carry a DVD with names of people from around the world. About 200,000 names have been enrolled so far, and the deadline to get your name on board is Feb. 12. Phoenix will launch in August 2007 and reach Mars in May 2008.
NASA's Mars Reconnaissance Orbiter has begun the final and fastest-paced portion of its "aerobraking" process of using friction with the top of Mars' atmosphere to shrink the spacecraft's orbit.
Aerocapture technology offers speed and fuel efficiency for space exploration.
Read about the expedition as it progresses with these 'Notes from the Field'
Tracy Drain ticks off the complex chain of mission planning and software programming required for NASA's latest Mars orbiter to reach its destination.
The spacecraft team that has been working furiously during the orbiter’s cruise is now preparing for a big moment at Mars: the mission-critical Mars orbit insertion.
After reaching the top of "Husband Hill," NASA's Mars rover finds that sizing up the terrain depends on the point of view.
As Opportunity opened her robotic eyes for the first time, it was clear Meridiani Planum was unlike any place NASA ever visited before.
Look for Mars in the night sky on December 12, 2005, and wish Opportunity a Happy One Martian Year Anniversary!
NASA's robotic explorers are showing us Mars is much more than just the "red planet."
Since Spirit's landing on January 3, 2004, Mars has completed one orbit around the Sun. That's one martian year - about twice as long as a year on Earth. With this anniversary in mind, it's time to celebrate the rover's accomplishments.
From working with prototype rovers in an Earth-bound sandbox, to driving on the actual red sands of Mars, Dr. Ashley Stroupe gets the best of both planets.
What could have been dismissed as "just static" in a radio signal is actually an echo from Mars that might reflect the shape of hidden ice and rock structures beneath the martian surface.
In fall of 2005, Mars will outshine most of the stars in the night sky.
NASA scientists have discovered additional evidence that Mars once underwent movement of the planet’s crust, like the present-day Earth.