Cosmology

After a flawless launch, the Nancy Grace Roman Space Telescope is on a mission to solve some of the universe’s biggest mysteries

NASA’s Roman Space Telescope will open a whole new window on the cosmos. Here are 10 things it’s likely to show us

Astronomers are lining up to leverage NASA’s soon-to-launch Nancy Grace Roman Space Telescope, which boasts capabilities unlike any previous off-world observatory

The more scientists try to understand dark energy, the more its mysteries seem to grow. NASA’s newest space telescope is custom-built to crack the case

The space agency’s Neil Gehrels Swift Observatory, which studied cataclysmic cosmic explosions, is expected to burn up in Earth’s atmosphere later this year

Researchers have nailed down an elusive quantity called baryon number, which may be responsible for the cosmic mismatch between matter and antimatter

First glimpsed as “little red dots” in deep-space images from the James Webb Space Telescope, these giant, gas-shrouded black holes are full of surprises

A private spacecraft launched to boost the decaying orbit of NASA’s Swift Observatory is now suffering from potentially mission-ending malfunctions

A recent study in the journal Nature carries cosmos-quaking implications for our understanding of the universe—except a new preprint says that it’s wrong

The exoplanet telescope TESS revealed a distant world using an entirely different detection method than the one it was built around

A new study claims that the universe isn’t entirely the same no matter where you look—a radical proposal

The evidence is mounting: this interstellar visitor is even older and weirder than anyone thought