They discovered that the host galaxy is incredibly massive — weighing in at over 40 billion times the mass of our Sun — and deeply obscured. The James Webb Space Telescope, which can peer through gas ...

Debate has raged for two decades over whether Pluto should be considered a planet. Some want President Trump to take action ...

Astronomy is generating data faster than any single research team can process it, and the instruments responsible are only getting larger. Surveys now routinely produce catalogs measured in billions ...

T he first time I heard about galaxies without dark matter, I was sitting in my very first graduate class at the University of São Paulo. It was 2018, and the discovery had just ...

Retired astronaut Butch Wilmore reflected on the thoughts he had when he and former colleague Sunita Williams were stranded in space for nearly 300 days in June 2024.

Oxygen has been the most important gas in our search for life among the cosmos thus far. On Earth, we have it in abundance ...

An international team involving Northwestern University​ announced Tuesday that it has reached a major milestone in its quest ...

Hundreds of mysterious objects have appeared in images captured by the Webb space telescope. The curious dots could reshape scientists’ understanding of the cosmos.

The local universe may be expanding more slowly than previously thought, a discovery that could relieve a pesky discrepancy known as the Hubble tension.