NASA has announced that the sun erupted with another significant solar flare on Oct. 22, 2014.
Scientists have created the most complete census of comets yet around another star.
Scientists have examined new maps of Saturn's moon, Titan, and have found that traces of gases near its north and south poles shin brightly during dusk and dawn.
Scientists have developed a new technique for imaging extremely distant galaxies, which opens a new window into the early universe.
When it comes to sending a man to Mars, NASA is faced with a host of challenges. Now, scientists have found that cosmic rays may threaten future deep-space astronaut missions with hazardous radiation.
Massive black holes may just be blocking the formation of new stars in aging galaxies. Scientists have found that the radio-frequency-emitting particles that the black holes spew out can halt the creation of stars.
As Comet Siding Spring sped near Mars on Sunday, Oct. 19, NASA's Mars Odyssey fled. Now, the longest-lived robot ever sent to Mars has reported back to Earth on schedule after sheltering behind the Red Planet to avoid possible comet dust.
Look up, sky fans; we're in luck when it comes to the Orionid Meteor Shower this year. A new moon will provide the perfect background for the meteor shower, which is scheduled to peak Tuesday, Oct. 21 and last into the morning of Oct. 22.
Scientists may have made the first ever direct detection of dark matter, the mysterious material that has long puzzled physicists. The findings could mean a whole new way to look at the universe
Scientists may have solved the mystery behind the super-powerful astrophysical jets that young stars emit. They've successfully tested a new model that explains how magnetic fields form these emissions in young stars.
It turns out that the closest of Saturn's regular moons may have an extraordinary feature--a sub-surface ocean sloshing beneath its icy surface.