The universe may be asymmetric, not identical in all directions The cosmic dipole anomaly challenges the standard Lambda-CDM ...

For a quarter century, cosmology has rested on a simple but audacious idea: that a fixed “cosmological constant” drives the ...

Born Jan. 8, 1942, Stephen Hawking became a household name associated with his brilliance, and an icon with his wheelchair ...

Scientists are a step closer to solving one of the universe's biggest mysteries as new research finds evidence that two of ...

Astronomers have identified Cloud 9, a nearby dark matter halo filled with gas but no stars. The discovery supports key predictions about how galaxies form and why some never do.

Scientists are a step closer to solving one of the universe’s biggest mysteries as new research finds evidence that two of its least understood components may be interacting, offering a rare window ...

An inexplicably hot, fast-growing cluster of galaxies in the early universe has scientists questioning theories of galactic ...

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Space scientists say they have discovered "Cloud 9." A team using the NASA/ESA Hubble Space Telescope has uncovered a new ...

New research puts forward compelling new evidence that dark matter interacts with cosmic "ghost particles" called neutrinos.

A new study questions dark energy's role in the universe's acceleration, suggesting it may be weakening instead.

A team of South Korean researchers have found that a mysterious force known as dark energy is changing our Universe in a way ...