Mars used to be a water world with oceans, rivers, and a thick atmosphere - then its magnetic field died and the planet slowly became a frozen, radioactive desert. In this video, we break down what ...

A close-up shot of two hands, projected with a vibrant blue galaxy pattern, are posed against a blurred red planet backdrop.

According to NOAA's Space Weather Prediction Center and NRCan's Canadian Space Weather Forecast Centre, we continue to have ...

Finding new worlds out there is pretty exciting, right? Scientists are getting really good at spotting planets around other ...

At around 10:04 pm it will reach its peak, taking on a red hue. This “blood moon” is caused by sunlight still filtering ...

Small but mighty, the red planet — our celestial neighbor — has made Earth’s climate what it is today. Mars’ gravitational ...

Mars is famous for its volcanoes, canyons and ancient river valleys, but some of its most active geology happens in slow ...

Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, ...

Add Yahoo as a preferred source to see more of our stories on Google. Northern Lights over English Countryside Photo by Ronan ...

Jupiter and Saturn's different polar storms reveal clues about planet interiors: Saturn has harder bottom than Jupiter.

Another SpaceX Falcon 9 rocket is due to launch from the Vandenberg Space Force Base in California. Will it be visible in ...

Observations of the two solar system gas giants have revealed that Jupiter 's north pole hosts a central polar vortex ...