A strong solar flare peaked just after 9 a.m. Tuesday. What does that mean?

Fired from a vast sunspot, the "coronal mass ejection" is expected to reach Earth on either Thursday or Friday this week.

Recently, scientists discovered the fastest-spinning large asteroid in the solar system.It’s about the length of eight ...

Some 5 billion years from now, the Sun will expand and become a red giant. And Earth might be just in the way... If humans ...

Exploring Earth's deep interior is a far bigger challenge than exploring the solar system. While we have traveled 25 billion km into space, the deepest we have ever gone below our feet is just over 12 ...

This week’s Current Climate newsletter also looks at Indiana’s plan to get rare earths from coal waste and how batteries keep ...

Low-Earth orbit is more crowded—and fragile—than it looks. Satellites constantly weave past each other, burning fuel and ...

NASA researchers show that artificial intelligence can anticipate solar flare buildups by tracking subtle changes across the ...

Coronagraphs are telescopes equipped with an occulting disk to block out the overwhelming radiation emanated from the visible surface of the Sun, along with optical stops and filters that are ...

The curious minds at What If investigate whether it is possible to fit another Earth in our solar system, revealing orbital ...

It was long thought, up until recently, that asteroids and comets delivered Earth's oceans during the very early Solar System ...

Using data collected by NASA's Parker Solar Probe during its closest approach to the sun, a University of Arizona-led ...