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.

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

The first dark comet was spotted in 2016 when scientists noticed that the trajectory of near-Earth asteroid 2003 RM was a little wonky for your typical space rock.

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

‘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.

Up to 60% of near-Earth objects could be dark comets, mysterious asteroids that orbit the sun in our solar system that likely contain or previously contained ice and could have been one route for ...

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 new study has suggested that up to 60 percent of near-Earth objects could be "dark comets", a strange class of objects that have characteristics of both asteroids and comets.

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 ...