A strange class of space rock known as a "dark comet" has qualities of both asteroids and comets — and the hard-to-spot objects may pose a larger threat to Earth than we thought, according to ...

Nearly invisible “dark comets” may have been responsible for bringing much of the water found on Earth to our planet ages ago. However, they could also pose a very terrible threat to Earth ...

A recent study suggested that nearly 60% of all near-Earth objects are dark comets that may have been a part of much larger bodies in the main asteroid belt, a region of the solar system that lies ...

"Dark comets," which are near-Earth asteroids that behave like comets and could contain water ice, have mostly come from the asteroid belt between Mars and Jupiter and could make up as much as 60% ...

Scientists first suspected the existence of dark comets in a March 2016 study when they noted that the trajectory of asteroid 2003 RM had moved slightly from its expected orbit, which could not be ...

The team estimates that between 0.5 and 60 percent of near-Earth objects could be dark comets. "These pieces will also have ice on them, so they will also spin out faster and faster until they ...

Dark comets, which are cross between an asteroid and comet, can make up as much as 60 percent of near-Earth objects.

This is what a recent study published in Icarus hopes to address as a team of international researchers investigated the origins of dark comets and their evolution throughout the history of the solar ...

In our study, we found seven new dark comets, bringing the total to 14. Now that we’ve found more dark comets, we’ve noticed that they come in two flavors. Outer dark comets are larger ...

Inner dark comets are smaller – typically 1,000 feet in size – and on circular orbits close to the Earth. Outer dark comets, shown in red, have longer orbits than inner dark comets, shown in gray.

A strange class of space rock known as a "dark comet" has qualities of both asteroids and comets — and the hard-to-spot objects may pose a larger threat to Earth than we thought, according to ...