Jupiter's Great Red Spot storm, which usually appears dark-red, can be seen shining a lurid blue color in an ultraviolet ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

Venus and Saturn will be in conjunction this weekend, appearing side by side in the night sky during January's post-sunset ...

Six planets will all be visible at once in the night sky this month, lined up across the sky—but one is set to disappear from view.

Venus, Saturn, Jupiter and Mars will appear to line up and be bright enough to see with the naked eye in the first few hours ...

Research and development is underway to create robots that can hunt for signs of life in the vast oceans that exist under the ...

As soon as it gets dark, two bright lights become visible—the brightest in the southwest and an almost-as-bright light in the ...