Halley’s Comet

Every 75 years, Halley’s Comet traverses our planetary neighborhood, providing an astonishing spectacle of beaming light before drifting back into the Solar System. It is the most famous comet identified by mankind, having first been observed by Chinese astronomers...

Comet Encke

On January 17, 1786, French astronomer Pierre Mechain discovered Comet Encke, but it wasn’t until 1819 when German astronomer Johann Franz Encke calculated its trajectory that the object became officially recognized. Comet Encke orbits our Sun once every 3.3 years,...