Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

It’s a powerful technique, but small uncertainties at each step can add up, something critics argue may be behind the Hubble ...

Hubble’s latest image of NGC 2835 reveals dazzling pink nebulae glowing in H-alpha light, exposing both newborn stars and remnants of dying ones. Credit: ESA/Hubble & NASA, R. Chandar, J. Lee and the ...

New 3I/ATLAS images from NASA and the ESA suggest the interstellar comet is active as it approaches Earth in December.

WASHINGTON — NASA's Hubble Space Telescope, rebuilt by astronauts, has demonstrated its new powers with a stunning set of images of exploding stars, a stellar nursery, colliding galaxies and the ...

This NASA/ESA Hubble Space Telescope image features a galaxy whose asymmetric appearance may be the result of a galactic tug of war. Located 35 million light-years away in the constellation Leo, the ...

NASA scientists are sounding an alarm that would have been unthinkable a decade ago: the same commercial satellite ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. (CNN) -- The Hubble Space Telescope has looked straight into the heart of a stunning galaxy. The observatory captured this ...