Four planets will be widely visible to the naked eye through part of February, but calling them a 'planetary alignment' may not be the full picture.

Five of the brightest planets Mercury, Venus, Mars, Jupiter, and Saturn, can be seen even from urban areas with mild ...

This is the last time the seven planets will appear together in the night sky until 2040. Here's when it's happening – and ...

The system is believed to be traveling at least 1.2 million miles per hour (1.93 million kilometers per hour), according to a ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

The James Webb Space Telescope's Near-Infrared camera (NIRCam) captured stunning imagery of Neptune. It is the "clearest view ...