The Rosetta spacecraft hibernated for 31 months while its orbit took it too far away from the sun for its solar arrays to keep it operational. It's ready for a rendezvous with a comet Aug. 6.
NASA is preparing to launch a new satellite to observe carbon dioxide from space. The satellite could revolutionize our understanding of where this greenhouse gas comes from and where it goes.
On Titan, summer is almost three years away. But in a dark, placid ocean of natural gas, scientists have spotted something that could be the first inkling of springtime.
An Italian aerospace firm, in conjunction with coffee company Lavazza and the Italian space agency, have jointly developed a system for producing zero-G espresso.
Linda Wertheimer talks to journalist Lynn Sherr about her friendship with the late Sally Ride. Sherr has written a book, Sally Ride: America's First Woman in Space.
An astrophysicist is using something called the Z machine at Sandia National Lab to recreate the conditions on a white dwarf star — only for a few nanoseconds, but still, enough to study.
Fifty years ago today, two astronomers in New Jersey accidentally discovered the Big Bang's afterglow. The roaring space static their hilltop antenna detected came from the birth of the universe.
Before NASA can send a manned mission to Mars, it needs to know more about how extended time in space affects the human body. Mark and Scott Kelly are the perfect subjects for such an experiment.
Audie Cornish speaks with Fred Espenak, scientist emeritus at NASA Goddard, also known as "Mr. Eclipse," about the lunar eclipse that will happen Monday night.