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 ...

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 ...

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 ...

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

Despite being covered in impact craters that could potentially send pieces of the planet into space, we have never found a ...

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.

Scientists may have solved alongstanding mystery in the study of Mercury. For the first time, pieces of the Solar System’s ...