Astronomers witnessed planets colliding 11,000 light-years away, an event that could shed light on the collision that created Earth's moon.

Dragonflies can see deeper red light than humans and this discovery may help scientists develop better medical tools.

A researcher discovered the rare cosmic event by noticing strange dips in a star's brightness in old telescope data. The collision created a hot cloud of rocks and dust, which researchers detected ...

From far enough away, something as large as the collision between two planets can appear as small as the dimming of a star.