The sparkling band of the Milky Way Galaxy backdrops the Nicholas U. Mayall 4-meter Telescope, located at Kitt Peak National Observatory (KPNO) near Tucson, Arizona.

DESI Provides Best Test Yet of How Gravity Behaves at Cosmic Scales

Researchers have used the Dark Energy Spectroscopic Instrument (DESI) to map nearly six million galaxies across 11 billion years of ...
New Siena Galaxy Atlas Delivers Improved Measurements of Almost 400,000 Nearby Galaxies

New Siena Galaxy Atlas Delivers Improved Measurements of Almost 400,000 Nearby Galaxies

Astronomers have created a detailed atlas of almost 400,000 galaxies in our cosmic neighborhood. The Siena Galaxy Atlas was compiled ...