Science April 13, 2017

Collisions generate gas in debris disks

Astronomers at RIKEN and Japanese universities observed two young stars with ASTE and discovered atomic carbon gas in the debris disks for the first time.

Science March 29, 2017

Subaru Telescope Detects the Shadow of a Gas Cloud in an Ancient Proto-supercluster

By using the Suprime-Cam on the Subaru Telescope, a team succeeded in making the widest map of neutral hydrogen gas in the early universe.

Science March 8, 2017

Ancient Stardust Sheds Light on the First Stars — Most distant object ever observed by ALMA

Astronomers have used ALMA to detect a huge mass of glowing stardust in a galaxy seen when the Universe was only four percent of its present age.

Science February 24, 2017

Saturn’s Rings Viewed in the Mid-infrared

A team of researchers has succeeded in measuring the brightnesses and temperatures of Saturn’s rings using the mid-infrared images taken by the Subaru Telescope in 2008. The images are the highest resolution ground-based views ever made.

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Science February 8, 2017

Protostar displays a strange geometry

Using observations of molecules taken by the ALMA observatory, researchers have uncovered new clues to understanding how dust in a collapsing molecular cloud can shed angular momentum and penetrate beyond an area known as the “centrifugal barrier”.

Science February 2, 2017

Tail of Stray Black Hole hiding in the Milky Way

By analyzing the gas motion of an extraordinarily fast-moving cosmic cloud in a corner of the Milky Way, astronomers found hints of a wandering black hole hidden in the cloud.

Science January 31, 2017

Tracing the Cosmic Web with Star-forming Galaxies in the Distant Universe

A research group led by Hiroshima University has revealed a picture of the increasing fraction of massive star-forming galaxies in the distant universe.

Science January 27, 2017

Cosmic lenses Bring the Universe’s Expansion into Sharper Focus

By using distant galaxies as giant gravitational lenses, an international group of astronomers has made an independent measurement of how fast the Universe is expanding.

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Science January 24, 2017

Micro spacecraft investigates cometary water mystery

In September 2015, Astronomers successfully observed the entire hydrogen coma of the comet 67P/Churyumov-Gerasimenko, using the LAICA telescope onboard the PROCYON spacecraft. They also succeeded in obtaining the absolute rate of water discharge from the comet.

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Science December 5, 2016

ALMA measures size of seeds of planets

Researchers using the ALMA, have for the first time, achieved a precise size measurement of small dust particles around a young star through radio-wave polarization.