W. M. Keck Observatories
Monster black hole in early universe challenges theorists
“Tension” increases with different measurement of Hubble constant
Exoplanet found in unusually long, elliptical orbit
Observatories resume operations amid protests
Whopping galaxy cluster spotted with help of NASA telescopes
Astronomers have discovered a giant gathering of galaxies in a very remote part of the universe, thanks to NASA’s Spitzer Space Telescope and Wide-field Infrared Survey Explorer (WISE). The galaxy cluster, located 8.5 billion light-years away, is the most massive structure yet found at such great distances.