The rest of the universe appears to be made of a mysterious, invisible substance called dark matter (25 percent) and a force that repels gravity known as dark energy (70 percent). Scientists have ...

Because we haven't found anything yet, we've started to wonder if dark matter might be lighter or heavier than we thought. Dark matter can't be too heavy or it might break our best model of the ...

Dark matter continues to elude detection ... and a universe filled with its own “dark periodic table of dark elements,” an ...

Dark energy and dark matter refers to the unseen energy and matter components of the Universe. Dark matter is invisible, non-baryonic matter hypothesized to explain phenomena including ...

For every kilogram of matter that we can see—from the computer on your desk to distant stars and galaxies—there are 5 kilograms of invisible matter that suffuse our surroundings. This "dark matter" is ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Dark matter can't be too heavy or it might break our best model of the universe, new research ...

One mile beneath a mountain in Italy, scientists at the Gran Sasso National Laboratory fill a particle detector with liquid xenon, hoping to observe evidence of dark matter. The idea is that, free ...

One mile beneath a mountain in Italy, scientists at the Gran Sasso National Laboratory fill a particle detector with liquid xenon, hoping to observe evidence of dark matter. The idea is that ...