Wave-shaped clouds resembling rough sea waves were spotted over Seoul on Thursday, caused by atmospheric instability as cold ...

We'll see partly sunny conditions on Thursday. As a warm front approaches, isolated showers and thunderstorms are possible in ...

Crepuscular rays — whose name derives from the Latin word for twilight — are an optical phenomenon caused by sunlight ...

May’s night sky is packed with astronomical events—find out when and where to look for meteor showers, ancient star clusters, ...

The find shines light on how galaxies begin to turn gas and dust "into stars and planets," said astrophysicist Blakesley ...

Tuesday will be even warmer, with highs in the upper 70s and low 80s for some. Most of the day will be dry, with a mix of sun and clouds. A few downpours and storms are likely during the late ...

A newly found, huge cloud near our solar system probably won't form stars, but will rather disperse as part of a feedback ...

Named Eos, the cloud of gas would appear huge in the night sky if visible to the naked eye and could shed light on solar ...

Scientists have unveiled an enormous gas cloud just 300 light-years from the solar system that measures about full 40 moons ...

Tonight will be mostly clear and seasonably cold, with lows in the 30s and 40s. Drastic improvement is expected Monday, with ...

Portland's weather is mostly cloudy with highs near 62°F and light winds; clouds thicken at night with lows around 46°F.