According to the new DESI numbers, dark energy may be changing over time—either causing the universe’s expansion to ...

For Marcela Carena, her life’s work started as a little girl on the Pampas of Argentina, looking up at the Milky Way.. Her ...

Deep observations from the James Webb Space Telescope (JWST) have revealed an exceptionally large galaxy in the early ...

The Dark Energy Spectroscopic Instrument (DESI) is mapping millions of celestial objects to better understand dark energy—the ...

University of Arizona researchers are among a group of scientists who hope to discover what happened immediately after the Big Bang, when the universe expanded in a fraction of a ...

The findings reveal unusual chemical signatures and offer new insights into the behavior of novas beyond the Milky Way.

The latest Dark Energy Spectroscopic Instrument results fall short of the discovery threshold but strengthen evidence for ...

The 3D cosmic map building DESI has provided more clues that dark energy is weakening over time, suggesting our best model of ...

The findings suggest that dark energy is dynamic and changes over time, and that it used to be stronger in the early stages of the universe but is weaker now. That’s particularly odd because most ...

Last year, an enormous map of the cosmos hinted that the engine driving cosmic expansion might be sputtering. Now physicists ...

Astronomers have made a surprising discovery that challenges current theories of galaxy formation. A colossal disk-shaped galaxy, nicknamed the "Big Wheel," has been found just two billion years after ...

A groundbreaking new dataset containing information on 18.7 million celestial objects —the largest ever assembled—is now accessible to researchers, paving the way toward solving some of the universe’s ...