The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

A quick dusting of snow is possible as rain starts tomorrow; patchy flooding possible Saturday night into Sunday ...

These are noctilucent (night-shining) clouds. “Even though the sun has set in Gale Crater, the clouds are high enough in the atmosphere that the sun still shines on them, making them seem to ...

Also known as night shining clouds, they are visible when ice crystals form high in Earth's atmosphere and are underlit by the Sun. On Thursday and Friday they were spotted from Aberdeenshire ...

The Sun sets differently on Mars ... of the effects can be seen in the Red Planet’s noctilucent clouds. Latin for “night shining,” noctilucent clouds (also known as twilight clouds) are ...

The millions of homeowners who have seen their mortgage payments double in recent years would no doubt concur with ... lend you an umbrella when the sun is shining and want it back as soon as ...

Sun rays fall through clouds in the outskirts of Frankfurt, Germany, Wednesday, Aug. 26, 2020. (AP Photo/Michael Probst) Sometimes, it's not the shape of a cloud that can create a breathtaking ...