“As a result, for the past four decades, most researchers have believed that dark matter must be cold when it is born in the ...

Astronomers found evidence that dark matter and neutrinos may interact, hinting at a "fundamental breakthrough" that ...

Physicists have unveiled a new way to simulate a mysterious form of dark matter that can collide with itself but not with ...

To explain these observations, they proposed a new kind of energy that is responsible for driving the universe’s accelerated expansion: dark energy. Astrophysicists now believe dark energy makes up ...

This cloud is a window into the dark Universe,” study co-author and Space Telescope Science Institute (STCScl) team member Andrew Fox said in a statement. “We know from theory that most of the mass in ...

Hubble has revealed a strange cosmic object called Cloud-9, a dark matter–dominated cloud with no stars at all. Scientists believe it is a “failed galaxy,” a leftover building block from the early ...

For a generation, cosmologists have treated dark energy as a fixed backdrop, a steady pressure stretching space faster and faster forever. Now a wave of new measurements suggests that this invisible ...

The universe is packed with riddles, but few are as stubborn or as fascinating as dark matter. First proposed in 1933 by astronomer Fritz Zwicky, this elusive substance refuses to play by the rules: ...

Scientists have found hints that ghostly neutrinos may interact with dark matter. The unexpected link could help explain ...