Up to 150 Geminid meteors may brighten the night sky each hour as the shower hits its peak on Dec. 13-14, according to the ...

Images from NASA's Galileo mission reveal a tantalizing starburst-like feature. Scientists call it a "wall demon." ...

Sunspot AR3229 erupted with an X2-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple ...

First reported by a riverboat captain on the Mississippi River in 1833, the annual Geminid meteor shower has been captivating ...

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for.

The Geminids meteor shower peaks on the evening of Saturday. During its peak, the AMS says that it can spit out upwards of ...

It seems another aurora australis is on its way, and this could be the biggest yet. Here's where and how to view it this week ...

An Earth-directed coronal mass ejection could trigger a G3-rated geomagnetic storm early on Tuesday, Dec. 9, with the lower ...

Dazzling 'dawn storms' that illuminate Jupiter's poles are 10x more intense than the gas giant's regular auroras.

Tonight, the waning gibbous moon will be near Jupiter and Gemini's brightest star, Pollux, to form an isosceles triangle with ...

New research shows that tiny light patterns and faint radio signals reveal the earliest moments before an aurora suddenly ...

December is an exciting month for those who like to look up, with a comet, a meteor shower, and a conjunction between the ...