The Keck II telescope’s Laser Guide Star fires into the night sky. Credit: Sarah Anderson.Black Holes, the most powerful destroyers …

Vicki Oransky Wittenstein, author of Planet Hunter, stands in front of the Keck telescope. Credit: Sarah Anderson.Planet Hunter: Geoff Marcy …

A native of Italy, Tommaso Treu, now a UC Santa Barbara astrophysicist, earned degrees at University of Pisa and the …

PBS Hawai’i aired Hunting the Edge of Space, a documentary exploring how the telescope has expanded our view of the …

UC Berkeley planet hunter Geoff Marcy watches the sun set from the Keck telescopes on Mauna Kea. Credit: WMKO. Geoff …

MAUNA KEA, HI— By observing visible “light echoes,” astronomers have assembled one of the first 3-D perspectives of a cosmic …

Mauna Kea, HI — Astronomers using the W. M. Keck Observatory have identified the smallest known binary system to date …

WASHINGTON D.C.— Planet hunters using Keck Observatory have detected an extrasolar planet that is only four times the mass of …

WASHINGTON D.C.—Astronomers using the W. M. Keck Observatory have discovered 33 pairs of black holes in distant galaxies. The new …

MAUNA KEA, HI—Astronomers using the W. M. Keck Observatory have peered far into a young planetary system, giving an unprecedented …

MAUNA KEA, HI—Planet hunters using the W. M. Keck Observatory have identified at least six low-mass planets around two nearby, …

MAUNA KEA, HI—Astronomers at the W. M. Keck Observatory are using a technique called interferometry to provide new information about …