On July 2, 1985, the European Space Agency launched the Giotto space probe to get a close-up look at Halley's Comet. Nearly ...

The most famous comet of all is headed back toward Earth. Halley's comet reached aphelion—its farthest point from the sun—on Dec. 8, at which point it began its long journey back to the sun. For the ...

The video revisits its most dramatic appearances—from ancient Chinese records in 239 BCE, to the dazzling close approach of 837 CE, the photographic breakthrough of 1910, and the unprecedented space ...

A medieval monk may have beaten Edmond Halley to one of astronomy’s greatest discoveries by nearly 700 years. Researchers say Eilmer of Malmesbury recognized that the blazing comet seen in 1066 was ...

The British astronomer and mathematician Edmond Halley was not, after all, the first to understand the cycle of the comet that now bears his name. This is shown by research conducted by, among others, ...

Early in the 11th century, a young Benedictine monk named Eilmer jumped from the 150-foot tower of his abbey in the small English town of Malmesbury, wearing a pair of crude wings he’d fashioned from ...

These next two weeks, we’ve got several good moon sights and the closing of the gap between the two brightest planets. We also have a chance to see a few flaming bits of Halley’s Comet burn up in our ...