A new study suggests that up to 60% of near-Earth objects are dark comets, a nearly invisible hybrid object that behaves like a comet and an asteroid at the same time.

The astronomers examined seven near-Earth objects that they identified as dark comets and calculated from their presence that up to 60 percent of near-Earth objects could be dark comets.

The Tibesti Mountains, located mostly in Chad with the northern slopes extending into Libya, are captured in this amazing space wallpaper, acquired on March 4, 2012 by Envisat’s MERIS instrument.

This illustration shows Earth surrounded by theoretical filaments of dark matter called “hairs.” NASA/JPL-Caltech The solar system might be a lot hairier than we thought.

In this beautiful space wallpaper, clouds cover the North Sea and sweep down to the strait between Denmark (lower-right corner) and Norway (upper-centre).

A whole lot of zig-zagging: Perhaps that is what happens when the universe's mysterious dark matter particles hit the Earth. Researchers can now show through simulations how it might look.

Yes, astronomers suggest it's very likely a "dark matter hurricane" will slam into the Earth as it speeds through the Milky Way -- but it shouldn't cause any damage.

Earth’s periodic passage through the galaxy’s dark matter disk could initiate a series of events that ultimately lead to geological cataclysms and mass extinctions.

Mysterious dark matter could slosh over our planet like a wave. If it does, it may produce telltale radio waves in Earth's atmosphere, new theoretical research suggests.