NOAA's CCOR-1 coronagraph captured the blast that showed the sun's raw power in action.

Looking for a sky event this week? Check out our full Sky This Week column. November 2: Neptune nestles between Saturn and the Moon Let's catch up with Venus in the morning sky; Earth's sister planet ...

The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you ...

Low clouds matter most for albedo and sunlight reflection. They bounce a lot of sunlight back to space. Last year, low cloud ...

The best time to see a shooting star is on Nov. 16 and 17, when the Leonids peak during an almost completely dark waning crescent moon. The meteors from the Leonids can be very bright and colorful ...

An ominous-looking nebula named NGC 246 lurks in the constellation Cetus about 1,600 light-years away from Earth. It is ...

The Hubble Space Telescope was originally expected to last about 15 years in orbit, before its optical surfaces became too ...

Mercury currently appears as a bright "evening star" in the southwestern sky at sunset. Mercury will reach its greatest ...

Send spooky greetings to friends and family as you celebrate the festival of fright with laughter, scares and whole lot of Halloween fun.

Contributing writer Chris Colin travels halfway around the world with his family to take a first-of-its-kind safari, and ...

The Pottsville Diner in Pottsville, Pennsylvania, serves up what might just be the most extraordinary tuna melt in the Keystone State, hiding in plain sight on their classic diner menu. You’ve had ...

Earth’s magnetosphere, once thought to have a simple electric polarity pattern, has revealed a surprising twist. New ...