Tag: kcwi
A Wave of Ancient Quasars from the Dawn of the Universe
Keck Observatory and ESA’s Euclid mission double the known population, including the two most distant quasars ever found Maunakea, Hawaiʻi – Astronomers using the W. M. Keck Observatory on Maunakea, Hawaiʻi Island, have confirmed two-thirds (21 of 31) of the most ancient quasars from the Euclid mission, including two of the most distant ever observed.…
Astronomers Discover Third Galaxy Without Dark Matter
Findings strengthen evidence for a violent galactic collision that may have separated ordinary matter from dark matter Maunakea, Hawaiʻi – Astronomers using W. M. Keck Observatory on Maunakea, Hawaiʻi Island, have discovered the third known galaxy apparently lacking dark matter, part of a strange linear structure that may have formed during a violent collision between…
Astronomers Sharpen the Universe’s Expansion Rate, Deepening a Cosmic Mystery
New results strengthen the “Hubble tension,” hinting at the need for rethinking our model of the universe Media Contact: Meagan O’Shea Maunakea, Hawaiʻi – A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, Hawaiʻi Island, have made one of the most precise independent measurements…
Ring It On: W. M. Keck Observatory Data Hits a Galactic Bullseye
Maunakea, Hawaiʻi – W. M. Keck Observatory on Maunakea, Hawaiʻi Island and NASA’s Hubble Space Telescope have captured a cosmic bullseye! The gargantuan galaxy LEDA 1313424 is rippling with nine star-filled rings after an “arrow” — a far smaller blue dwarf galaxy — shot through its heart. Astronomers using Hubble identified eight visible rings, more…
Dandelion Supernova Revealed in 3-D
Maunakea, Hawaiʻi – For nearly six months during the year 1181, people looked up to the skies to find a new star glittering in the constellation Cassiopeia. Chinese and Japanese astronomers recorded the rare event, an explosion of a star, or supernova. In the centuries since, astronomers have searched for the remains of the blast,…