Scientists have discovered seven more "dark comets," and analysis of this haul suggests that the puzzling planetoids are ...

Comets are icy bodies that formed alongside the planets in the early Solar System before being flung into its distant outer ...

A reanalysis of the data from the "rubber-ducky" comet 67P, collected nearly a decade ago, suggests comets may have deposited a lot more water on Earth than scientists previously thought.

It was discovered the following year by Carolyn and Eugene M. Shoemaker, and David Levy and was the first comet ever known to ...

NASA has announced the discovery of seven astronomical objects that come in two flavors; they look like asteroids but ...

The rocky bodies, which look like asteroids but act like comets, could comprise up to 60% of near-Earth objects.

Among patients with hormone receptor (HR)-positive, HER2-negative, low-risk ductal carcinoma in situ (DCIS), those who underwent active monitoring had similar two-year invasive ipsilateral breast ...

The cosmic display – famed for its strong, bright and consistent fireballs – is reaching its peak activity for the year ...

One of the most dramatic astronomical events of the year is scheduled to peak this weekend. The Geminid meteor shower is ...

Unlike most meteor showers, the Geminid meteor shower doesn't originate from a comet, but from an asteroid. Astronomers theorize that the asteroid, 3200 Phaethon, could be what's known as a "dead ...

B reast cancer is not a single disease but multiple ones, each carrying varying degrees of risk for endangering women’s ...