Science February 4, 2016

A Violent Wind Blown from the Heart of a Galaxy Tells the Tale of a Merger

The team has succeeded in revealing the detail structure of ionized gas outflow streaming from the starburst galaxy by Subaru Telescope.

Science January 15, 2016

Signs of Second Largest Black Hole in the Milky Way - Possible Missing Link in Black Hole Evolution

Astronomers have detected signs of black hole with large mass around the center of the Milky Way by Nobeyama 45-m Radio Telescope.

Topics January 4, 2016

New Year Greetings from Director General

New Year Greetings from Director General of NAOJ.

Topics December 18, 2015

Final Results of NameExoWorlds Public Vote Released

Final results of NameExoWorlds released. The names of 19 ExoWorlds have been chosen by public vote in the NameExoWorlds contest, and accepted by the IAU.

Science December 7, 2015

Radio Shadow Reveals Tenuous Cosmic Gas Cloud

Astronomers detected the absorption of radio waves by ALMA and have discovered the most tenuous molecular gas ever observed.

Science December 5, 2015

ALMA Spots Monstrous Baby Galaxies Cradled in Dark Matter

Astronomers discovered a nest of monstrous baby galaxies 11.5 billion light-years away using ALMA.

Science December 4, 2015

Event Horizon Telescope Reveals Magnetic Fields at Milky Way’s Central Black Hole

Astronomers have detected magnetic fields just outside the event horizon of the black hole at the center of our Milky Way galaxy.

Topics November 16, 2015

KAGRA’s Initial Operation To Begin Soon

The next-generation Telescope, KAGRA, aim to perform the world’s first detection of gravitational waves, will commence operation.

Science October 15, 2015

ALMA telescope unveils rapid formation of new stars in distant galaxies

Researchers find galaxies forming stars at extreme rates nine billion years ago were efficient than average galaxies by ALMA, PdBI, and etc.

This article is including a link to a article for kids.

Events October 8, 2015

Announcement of Holding Mitaka Open House Day 2015

Mitaka Open House Day 2015 will be held on Oct. 23 and 24, 2015. There are many contents such as open facilities, give lectures, and so on.