Gas giants are massive worlds made mostly of hydrogen and helium. They lack solid surfaces, and in our solar system, Jupiter ...

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

Relatedly, astronomers may have just pushed the upper size limit of what counts as a planet.

A study led by the Center for Astrobiology (CAB), CSIC-INTA, using modeling techniques developed at the University of Oxford, ...

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

A team of researchers using the James Webb Space Telescope has produced the most detailed map of dark matter to date.

"There is a growing chasm between theory and observation related to the early universe, which presents compelling questions ...

Using the James Webb Space Telescope (JWST), astronomers have discovered a new dwarf galaxy, which received designation ...

Even for astronomers who have gazed upon the same cosmic object over their whole career, new portraits of these celestial bodies from the James Webb Space Telescope (JWST) have the power to delight ...

Data from the James Webb Space Telescope was used to create the largest, highest resolution map of dark matter, just ...

The James Webb Space Telescope (JWST) will have narrow viewing windows on February 18 and 26 to gather crucial data on the ...

This cosmic question mark, seen in 2024, is courtesy of galaxy cluster MACS-J0417.5-1154, which is so massive that it is ...