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 ...

Space & Spaceflight Most Near-Earth Objects Could Be ‘Dark Comets,’ Neither Comets Nor Asteroids The mysterious objects may be far more common than we thought and may have brought water to Earth.

Researchers are barely scratching the surface of these strange objects. A recent study suggested that nearly 60% of all near-Earth objects are dark comets that may have been a part of much larger ...

A new study has raised warnings about "dark comets" which are hard to detect and could pose a terrible threat to Earth.

Near-Earth asteroids that move as though they are outgassing like a comet could have delivered water to Earth over four billion years ago.

As researchers continue to study dark comets, they hope to unravel more mysteries about their nature and significance in the context of planetary formation and the development of life on Earth.

‘Dark comets’ could reveal how Earth got its oceans Scientists still do not know where the water here on Earth came from. But two populations of so-called dark comets may tell us.

New research of dark comets explores how water that makes up the oceans acted as a key ingredient for the development of life on Earth — and brought us oceans.

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 ...

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 ...