solar flare

An enormous solar filament, hundreds of thousands of kilometers across, erupted from the Sun in August 2012. Credit: NASA/GSFC/SDO

Want to go to Mars? Better leave when the Sun is active to minimize galactic radiation poisoning

By Phil Plait 9 months ago

Artwork of a red dwarf in a binary system undergoing a flare. Credit: NASA's Goddard Space Flight Center/S. Wiessinger

Baby stars throw big tantrums. Very, very big tantrums. And they do it a lot.

By Phil Plait 1 year ago