They’re not a perfect match, but it’s way too hot on the first planet for us to hop over and confirm for ourselves.

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System -- only the third ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to oblivion ...

A meteor shower, a planet sighting, and a full moon. Here's how to see all of space's eye-catching activity in July.

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

Mercury is the month's highlight, reaching greatest elongation July 4. Also on show in the Southern Hemisphere: Mars, Saturn, ...

The sun rises from the east, and sets in the west - this is a well-established fact for the longest time, and this is due to ...

NASA also points out that July and August is an excellent chance to view the constellation Aquila, also known as the eagle as ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

Three new full-dome movies will highlight the July schedule at the University of Wyoming Harry C. Vaughan Planetarium.