An international team of astronomers has uncovered multiple evolutionary paths for the universe's most massive galaxies. Observations of ultramassive galaxies, each containing more than 100 billion ...

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

Observations of ultra-massive galaxies, each containing more than 100 billion stars, show that less than 2 billion years ...

Astronomers working with the Hubble Space Telescope have identified an entirely new type of cosmic object. It is a cloud rich ...

The Standard Model of our universe doesn’t match the evidence, in part because of dark energy, a ghostly force pushing the ...

The theorized unseen structure of spacetime could also explain of the outstanding questions about the accelerating expansion ...

Physicists are quietly entertaining one of the strangest ideas in modern cosmology: that the cosmos we see might be only half ...

Scientists have identified a strange cosmic relic called Cloud-9 — a starless, gas-filled object dominated by dark matter.

Scientists have claimed a new dark matter theory could explain the existence of a hidden universe. 'Dark matter' is an ...

Physicists are exploring whether hidden dimensions and the shape of space could help explain why fundamental particles have ...

Our galaxy's supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...

Nicknamed Cloud-9, this ethereal object is the first confirmed example of a long-predicted “failed galaxy”—a relic from the ...