The X9.3 solar flare was the largest since 2005 when an X17 flare was recorded.
As a triumphant mission to Saturn ends, its lead imaging scientist recalls her favorite photographs and moments.
Space agency will host a live event to celebrate the probe on September 5.
The president faced criticism from both sides for his pick to serve as senior space science adviser, lead the agency and manage its resources.
The compilation includes views from the International Space Station, the Solar Dynamics Observatory and other spacecraft.
Cassini will hurl itself into Saturn on September 15, but it has big questions to answer first.
You will not get another chance to see Florence in centuries but you have some very good options this weekend.
Florence is three miles wide and will pass at a distance of over 145 million miles.
NASA will send a lander called InSight to Mars next year. Here’s what it wants to find out.
The spacecraft is conducting a series of unprecedented final orbits before it burns up on September 15.
The celestial event drew millions of people to YouTube, Facebook and Twitter.
Two research jets are expected to capture the clearest images of the sun’s corona during the eclipse.
The maps depict Earth’s position relative to the sun, using pulsars that can remain active for billions of years.
Perseid meteor shower will peak on August 12 with up to 150 meteors per hour.
The position comes with a six figure salary and a “secret” security clearance.
A NASA scientist talks about the intricate dance that leads to a total solar eclipse.
A house-sized asteroid will pass by Earth at a distance of as little as 4,200 miles in October.
NASA says its mini-model tests have been successful.
Astronomer Dhara Patel explains some of the big problems we face when it comes to searching for extraterrestrial life.
As advertising potentially goes intergalactic, it’s either a new high or a new low.
Scientists predict that the tiny moon will be destroyed within 30 to 50 million years.