Bradleigh Hancock, 47, was driving along the A62 towards Marsden, West Yorkshire, with his family when they spotted a ...

And as those sticky aerosols grow larger, they meander back down and create clouds above the forest and elsewhere. Isoprene is the second-most-abundant hydrocarbon—chemicals containing only carbon and ...

Mount Lewotobi Laki Laki, a highly active volcano, has spewed a towering column of ash high into the sky above Indonesia and sent gas clouds rolling down its slopes ...

Italy's Mount Etna produced a spectacularly explosive eruption Monday morning, sending a ripple of reddish clouds down from its summit. The soaring ash rose to form a mushroom cloud high above ...

That's because they were forming from the exhaust of the rocket more than 200,000 feet in the air, so while the sun had not risen for us, it was able to reflect off those clouds. Hence the term ...

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.