The sun has been busy the past few days. It has now hurled three X-class solar flares into the depths of space, and it's likely that this activity will only increase as it approaches the peak of its 11-year solar cycle in 2013.
Researchers have discovered "Einstein's planet" by using a new method that can track down distant exoplanets.
Bright arcs can be seen smeared around the heart of the enormous galaxy cluster Abell S1077 in this image taken by the Hubble space telescope. These arcs are actually stretched images of distant galaxies distorted by the cluster's huge gravitational field.
Astronaut Chris Hadfield has become an Internet sensation by performing David Bowie's 1969 song, "Space Oddity."
The sun let loose its strongest solar flare yet this year on Mother's Day. The massive X 1.7-class solar eruption was captured on camera by NASA's Solar Dynamics Observatory.
It looks like Connecticut towns are a new target for space rocks, with a second meteorite hitting a Connecticut house in less than a month last Wednesday, in the city of Waterbury. The place is just two miles away from Walcott, where the April collision took place.
Astronauts had to undertake a rapidly planned emergency spacewalk this Saturday to fix a serious ammonia leak at the International Space Station that was discovered two days earlier. NASA announced that the repair was apparently successful, and the following weeks will show if there is no new leakag...
Astronomers are learning a bit more about the atmospheres of alien worlds with new imaging techniques that allow them to examine exoplanets.
NASA's Mars rover Curiosity has a new site to drill--the Cumberland rock. Now, the rover will set course for the location in the coming day.
The satellite code-named 'Biomass', designed to map and monitor one of "Earth's most precious resources", was selected to become the seventh Earth Explorer mission by the European Space Agency.
Houston, we have a problem. Astronauts on the International Space Station have discovered an ammonia leak that may require an emergency space walk, according to NASA officials.