Long-dead celestial objects called "dark stars" may have become today's supermassive black holes.
And it could help us solve the mystery of dark matter.
A universe where everything is flipped just might exist, scientists say — and it could contain your mirror-image twin.
Something a million times the mass of the Sun tore through the Milky Way, leaving destruction in its wake.
Physicists are getting ready to look for a new, slow-moving particle.
Let It Go: Dark matter may trigger supercooled water to freeze.
New data shows that the vast majority of our galaxy's mass is dark matter.
If each photon had just a tiny bit of mass, it could upend the theory of dark matter.
"The results appear to challenge current understanding of the fundamental laws of physics."
An ingenious tabletop instrument might be able to spot dark matter.
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