Science August 25, 2017

Phoenicid Meteor Shower from Dead Comet Arises again after 58 Years

Japanese astronomers observed the elusive “Phoenicid meteor shower” and have determined that it was spawned by the now vanished Comet Blanpain.

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Science August 2, 2017

Running Out of Gas: Gas Loss Puts Brakes on Stellar Baby Boom

Astronomers observed a galaxy cluster 9.4 billion light-years away using the ALMA radio telescope array and found evidence that hot gas strips away the cold gas in the member galaxies.

Topics June 14, 2017

Nobeyama 45-m Radio Telescope Developed by the National Astronomical Observatory of Japan and Mitsubishi Electric Recognized as “IEEE Milestone”

National Astronomical Observatory of Japan (NAOJ) and Mitsubishi Electric Corporation announced today that the Nobeyama 45-m Radio Telescope has been certified as an "IEEE Milestone" by the Institute of Electrical and Electronics Engineers (IEEE).

Science June 13, 2017

ALMA Hears Birth Cry of a Massive Baby Star

An international research team led by a Japanese astronomer has determined how the enigmatic gas flow from a massive baby star is launched.

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Topics May 26, 2017

Mitaka Campus Public Visits Reaches 200,000 Guests!

On Friday, May 26, 2017, the NAOJ Mitaka Campus Public visits area welcomed its 200,000th guest.

Science May 18, 2017

First Direct Exploration of Magnetic Fields in the Upper Solar Atmosphere --Ultraviolet spectropolarimetry opens a new window for solar physics research--

For the first time in the world, scientists have explored the magnetic field in the upper solar atmosphere by observing the polarization of ultraviolet light from the Sun.

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Science April 28, 2017

First Global Simulation Yields New Insights into Ring System

A team of researchers in Japan modeled the two rings around Chariklo, the smallest body in the Solar System known to have rings.

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.

Topics March 28, 2017

Dr. Takiwaki and Dr. Hada received the ASJ Young Astronomer Awards 2016

Dr. Tomoya Takiwaki and Dr. Kazuhiro Hada received the ASJ Young Astronomer Awards 2016. Dr. Takiwaki is an assistant professor in the Division of Theoretical Astronomy, NAOJ and Dr. Hada is an assistant professor at NAOJ Mizusawa VLBI Observatory.