During the last week of July and for a fair amount of August, there’s still time to spot some noctilucent cloud activity, as captured recently ...

The clip posted by @verivanessa shows a large cloud at sunrise appearing to sit just above the horizon, with a long, dark rectangular beam stretching across an orange-pink sky.

The alignment, which may be spotted about 10 degrees above the horizon, will be visible for a while just after sunset Friday. Sky watchers may have a difficult time spotting the entire parade ...

The NASA Odyssey orbiter, which launched in 2001 from Cape Canaveral, snapped a 1st-ever image of a Mars volcano peeking above the clouds before dawn.

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.

A spacecraft's-eye view over the landscapes of Mars has just given us a first-of-its-kind glimpse of the giant, ancient edifice known as Arsia Mons. The NASA satellite Odyssey captured the ...

Floating in orbit above Mars, NASA’s 2001 Mars Odyssey orbiter captured a panorama of the Red Planet’s biggest volcanoes, Arsia Mons, peeking over a sea of clouds.