He wasn't wrong—the sun is 99.8 percent of the mass of the solar system. But what is that giant ball of fire in the sky? How ...

Here’s a little spoiler for next month’s Cosmic Calendar: early May will see the return of the Eta Aquarid meteor shower. The ...

The ultimate purpose of PUNCH is to use its four instruments — three wide-field imagers (WFI) and a near-field imager (NFI) — ...

Studies of the solar system are advancing by leaps and bounds, especially to try to avoid, or at least know about, episodes ...

Even though Mercury is the closest planet to the sun, it's the second hottest and orbits on average 36 million miles away from our shining star ... planet in the solar system.

NASA’s new PUNCH mission just opened its eyes to space, capturing its first images of the Sun’s outer atmosphere and the ...

PUNCH, a bold new NASA mission, has successfully taken its first images of the Sun’s corona from orbit using four ...

Astronomers have spotted a small rocky planet that orbits perilously close to its host star disintegrating as its surface is ...