Today, the European Space Agency successfully landed a probe on a comet moving at 80,000 miles per hour. That’s an extraordinary achievement. What the scientists and engineers operating the Philae lander have accom...

Harvard University's Putnam Gallery has a collection of historical scientific instruments. Pictured above is Benjamin Martin's cometarium, which dates back to about 1766. Here's what it did: This apparatus was desig...

Video Link (Courtesy NASA/Berkeley) In this q...  ...ikaze comet that they spotted in March. Seeing comets and other small objects approach the sun is diffi...

A NASA spacecraft called the Solar and Heliosp...  ...swing by the sun this year. Known as sun-grazing comets , the icy objects most likely come from the outer...  ...nomers estimate that there may be more than 1,600 comets in our solar system that swing through its heart...  ...As of 2000, the definitive count...