A visualization of what happens when a star collapses into a black hole’s gravitational field.

A mega comet has entered our solar system.Named 2014 UN271, the object will approach the Sun and reach Saturn's orbit in 2031. It is estimated to be 100 to 370 km wide, and this object is larger than the typical...

NASA's Curiosity rover sends two beautiful images to Earth from Mars. The images were sent from Mount Sharp on Mars. The Curiosity Mission team has created a postcard from Mars by adding colors to the images received. On Tuesday, November...

The Moon and Earth exert a gravitational pull on each other. On Earth, the Moon's gravitational pull causes the oceans to bulge out on both the side closest to the Moon and the side farthest from the Moon. These bulges...