Tracing the Cosmic Web with Star-forming Galaxies in the Distant Universe
January 30, 2017
By using the Subaru Telescope, an international team led by Hiroshima University researcher has revealed a picture of the increasing fraction of massive star-forming galaxies in the distant universe. Massive star-forming galaxies about 5 billion years ago trace large-scale structure in the universe. About 3 billion years ago, massive star-forming galaxies are no longer apparent.
Cosmic Lenses Bring the Universe's Expansion into Sharper Focus
January 26, 2017
By using galaxies as giant gravitational lenses, an international group of astronomers has made an independent, very accurate measurement of how fast the Universe is expanding. Wide field view instruments at the Subaru Telescope were essential for these findings.