Dark energy may be the most mysterious substance ever proposed, but many scientists are certain it exists. Why?

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

"WIMPs are still the leading candidate for dark matter, but billions of dollars of experiments have been done, only getting ...

Astronomers have revealed a new type of cosmic object called Cloud-9 — a dim, starless gas cloud anchored by a massive dark ...

Called the Dark Energy Spectroscopic Instrument, it uses a telescope southwest of Tucson, Arizona to create a ...

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

Demi Moore gets emotional about Bruce Willis' weekly 'Neil Diamond Day' 550-pound bear finally evicted from California home ...

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

Thought leaders have long debated how to best aid Puerto Rico in its transition toward resource efficiency, stability and ...

This image provided by the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) and the Dark Energy Spectroscopic Instrument (DESI) illustrates a latest breakthrough in dark ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

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