A major survey verifies 3,500 gravitational lenses, offering new tools to map dark matter and track cosmic expansion.

Astronomers have long argued that dark matter is the invisible scaffolding that holds galaxies together. Without its immense ...

On May 20, 1990, the Hubble Space Telescope sent its first image to Earth. This photo turned out to be 50% sharper than images from ground-based telescopes. In August of that year, Hubble made one of ...

A new analysis of archival Hubble Space Telescope photos reveals that a peculiar comet slowed its spin before fully reversing ...

Enjoy this week's planetary bonanza, from Earth to distant Saturn and everything in between. We also feature unusual ...

Hubble helps see more subtle variations in color across the world, while Webb's infrared view allows operators to image the ...

New images from Webb and Hubble show Saturn like never before, exposing its layered atmosphere, powerful storms, and changing seasons.

Astronomers reveal new insight into an iconic supernova remnant's evolution, structure and pulsar-driven growth over 25 years ...

Through the remarkable and world-changing James Webb Telescope, astronomers have found over 300 scarred celestial objects that puzzle the minds at NASA.

For this ESA/Hubble Image of the Month, the Hubble Telescope teams up with ESA's Euclid to offer a new view of the visually ...

Newly released photos offer a relatively close-up view of Saturn, hundreds of millions of miles away from Earth: The James ...

NASA’s James Webb Space Telescope and Hubble Space Telescope have teamed up to capture new views of Saturn, revealing the planet in strikingly different ways. Observing in complementary wavelengths of ...