The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international ...

A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding ...

"We found an unexpected chemical complexity, with abundances far higher than predicted by current theoretical models." ...

The small organic molecules that were detected could be important for prebiotic chemistry.

NASA confirms galaxy MoM-z14 observed by the James Webb Space Telescope formed 280 million years after the Big Bang using ...

This idea is called the big bang model—which is an unfortunate name because it brings to mind a cosmos expanding like an ...

The standard cosmological model (present-day version of "Big Bang," called Lambda-CDM) gives an age of the universe close to 13.8 billion years and much younger when we explore the universe at ...

For many years, scientists have tried to understand how the Milky Way is positioned in space, and how it moves together with ...

Images taken with the MIRI infrared camera on the James Webb Space Telescope (JWST) have made it possible to observe the first galaxies in long-wavelength infrared light for the first time. Alongside ...

Astronomers used James Webb Space Telescope data to determine the density of the universe's most mysterious "stuff." ...

A flat plane of dark matter beyond the Local Group may explain why nearby galaxies move away from us instead of falling ...

According to general relativity, gravity is the distortion of spacetime. Heavyweight cosmic entities like stars or galaxies ...