NASA’s Perseverance rover has detected the first aurora at Mars that's visible to the human eye, good news for future astronauts who can savor the view on the red planet.

Excitement and debate are swirling in the college football and sports logo community as ESPN has pulled back the curtain on a ...

Galactic megacollision: A visible-light and X-ray composite image of the Bullet cluster 1E 0657-556, which formed after the ...