NASA announced that Mars' Gale Crater was once the site of a vast lake that appears to have filled up, dried out and filled up again repeatedly over a much longer period than wet conditions were believed to have persisted.
NASA reports successful test of new craft designed for deep space mission.
If you want to go to Mars but can’t quite afford the hundreds of billions of dollars for a ticket, there is another solution: consider instead a trip to the Atacama Desert in Chile.
NASA's latest mission to Mars, MAVEN (Mars Atmospheric and Volatile Evolution), entered Martian orbit less than a month ago on September 21. It's already rewarded us with revealing insights into the disappearance of Mars' atmosphere.
The annual open-ended celebration of geology and its related sciences takes place all this coming week. See what's happening and where to take part.
Curiosity has reached the base of Mount Sharp, its primary mission goal. It's a 3-mile-high mound of sediment that preserves a geologic record of Mars going back billions of years.
On September 21, NASA's MAVEN (Mars Atmosphere and Volatile Evolution) spacecraft will go boldly where no one has gone before: to the very top of the Martian atmosphere!
One of NASA's most senior and still-operational spacecraft reached a milestone: the rover Opportunity completed its first 25 miles traveling across the surface of Mars!
The data could yield a much more precise picture of how accumulating greenhouse gases will affect the planet.
How big can an Earth-like planet be? Astronomers thought they had a pretty good handle on this question but have just been given a fresh example of how nature never ceases to outpace our imaginations and show us something unexpected.
Two years ago, a solar coronal mass ejection of possibly the greatest recorded strength in history blasted by Earth's orbit. Had it impacted Earth's protective magnetic field, we could have experienced major disruptions in communication, brilliant aurora displays at tropical latitudes, damage to orbital satellites and possibly even major power blackouts.
Recently, NASA administrator Charles Bolden rephrased the "Moon, Mars and Beyond" mission plan to better align the steps toward Mars with budgetary realities and to balance human space programs with more cost-effective robotic missions.
Modern explorers have found a previously unknown ocean -- but this one's on Saturn's moon Enceladus. Learn more from Chabot Space & Science Center's Ben Burress at KQED Science.
SpaceX is launching a rocket to the International Space Station this afternoon. The live webcast begins at 12:45 PST and the launch itself is scheduled for 1:58.
Upholding a long-standing tradition of showing us things in space that we have never seen before, the Hubble Space Telescope recently witnessed the break-up of an asteroid.
Having solved a 42-year-old mystery about lunar "streamers," the $280 million LADEE spacecraft is set to vaporize when it collides with the moon around April 21st.
A recent study of data collected by NASA's Wide-Field Infrared Explorer (WISE) spacecraft may have exorcised the notion of the hypothetical existence of the fabled "Planet X."
Investigation of an ancient Martian meteorite has re-fueled a debate about evidence of possible past life on Mars.
NASA researchers announce they've verified 715 new planets orbiting around 305 stars.