Measuring a galaxy’s brightness or apparent size is not a good guide to its distance. Hubble leveraged a discovery made by Henrietta Swan Leavitt 10 years earlier. She worked at the Harvard ...

A cosmic bullseye has been recorded by NASA's Hubble Space Telescope! The “arrow”—a much smaller blue dwarf galaxy—shot through the center of the enormous galaxy LEDA 1313424, causing it ...

This Hubble Space Telescope image captures the dazzling remains of a stellar explosion within the distant galaxy LEDA 132905, located over 400 million light-years away. Credit: ESA/Hubble & NASA, R. J ...

In a study that was published in The Astrophysical Journal Letters, astronomers used Hubble to find eight observable rings—more than any other observatory has ever seen in any galaxy—and used data ...

Hubble captures Type Ia supernova SN 2022aajn in Gemini Type Ia supernovae help measure cosmic distances accurately Observations aim to refine distance calculations ...

Since its launch in 1990, Hubble has made countless discoveries, from measuring the expansion of the universe to capturing stunning views of distant galaxies, nebulae, and exoplanets. Despite its age, ...

This NASA/ESA Hubble Space Telescope ... they can calculate its true distance. By using this method, astronomers can accurately determine how far away galaxies are. However, measuring these ...

M. Keck Observatory in Hawaii confirmed a ninth. Hubble and Keck also confirmed which galaxy dove through the Bullseye, creating these rings: the blue dwarf galaxy that sits to its immediate ...

“Why, then, would Hubble observe this supernova? SN 2022aajn is what’s known as a Type Ia supernova, which results from the explosion of the core of a dead star.” Type Ia supernovae help astronomers ...