The number of planets we have found orbiting other stars has snowballed in recent years, thanks to discoveries by the Kepler spacecraft. Now, NASA's next missions toward understanding the Milky Way's abundant worlds are preparing for launch.
NASA's MESSENGER spacecraft is soon to end its 10-year mission in a fiery touchdown on the surface of the planet Mercury--but not before giving us our most up-close look yet at this little understood and elusive world.
Far beneath the icy crust of Saturn's small moon Enceladus, hydrothermal activity may be at work, activity similar to what is found in some life-friendly environments on Earth.
Space exploration has suffered its share of setbacks and disappointments over the decades, but few of them stung as much as the 2013 mechanical failure of the Kepler spacecraft, a space telescope designed to accomplish one of the most exciting explorations of space ever: the search for potentially Earth-like planets orbiting other stars.
On March 6, NASA's Dawn spacecraft will become our first encounter with a dwarf planet when it arrives at Ceres.
Newest Earth science mission could extend the accuracy range of weather forecasts, fine-tune flood forecasts.
Only 84 years after its discovery in 1930 by Clyde Tombaugh, it is the eve of our first-ever close-up look at everyone’s favorite dwarf planet, Pluto. NASA’s New Horizons spacecraft will make a fly-by on July 14th, after a high-speed, nine-year voyage.
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.