The European Space Agency’s (ESA) Rosetta has reached its target -- the Comet 67p/Churyumov-Gerasimenko -- becoming the first spacecraft in history to rendezvous with a comet.
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!
Europe's Rosetta mission is poised to add another extraterrestrial landfall to a very short list, and top a new list as it becomes the first mission to land a probe on a comet.
A decade ago, NASA's Cassini spacecraft, the largest and most complex robotic probe yet built, arrived in the Saturn system to begin a marathon exploration of the gas giant, its famous and awe-inspiring rings and what has turned out to be a collection of some of the most eye-opening moons in the solar system.
The data could yield a much more precise picture of how accumulating greenhouse gases will affect the planet.
Will the generation that is coming into the world today know more than eight, more than nine, solar planets? Some recent observations make this prospect sound like a strong possibility.
As a flood of new exoplanets swim into our ken, we have ways of turning these pixel-size steams of data into insights about our own 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.
Recently, a major milestone in space exploration was reached: a planet was captured in a picture! The big deal is that the planet captured in this shot, a gas giant planet named Beta Pictoris b, is 63 light years away--over 100,000 times farther away than even Pluto.
The May Camelopardalids, named after the 'camel leopard' constellation, might be phenomenal. ...Read More
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.
SpaceX, a private space company, is trying again on Friday to launch its Dragon spacecraft to the International Space Station. Its first attempt to launch this mission was scratched on Monday because of a helium leak.
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.
It'll be a great view in the Bay Area late on the night of April 14, as long as clouds don't cover up the moon.
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.