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 ...

In the early hours of December 19, 2025, a rare interstellar object known as 3I/ATLAS will make its closest approach to Earth ...

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

Researchers estimate that the planet has about a 50% chance of being in its star's Hoble zone.