Events December 25, 2019

First IAU Symposium on Inclusion and Diversity held in Mitaka Campus

From Tuesday, November 12 to Friday, November 15, 2019, the International Astronomical Union (IAU) Symposium 358 on “Astronomy for Equity, Diversity and Inclusion - a roadmap to action within the framework of the IAU centennial anniversary” was held in NAOJ Mitaka Campus.

Science December 23, 2019

Massive Gas Disk Raises Questions about Planet Formation Theory

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) found a young star surrounded by an astonishing mass of gas.

Science December 19, 2019

The ‘cores’ of massive galaxies had already formed 1.5 billion years after the Big Bang

A distant galaxy more massive than our Milky Way—with more than a trillion stars—has revealed that the ‘cores’ of massive galaxies in the Universe had formed already 1.5 billion years after the Big Bang, about 1 billion years earlier than previous measurements revealed.

Science December 16, 2019

Carbon Cocoons Surround Growing Galaxies―ALMA Spots Earliest Environment Pollution in the Universe―

Researchers have discovered gigantic clouds of gaseous carbon more than a radius of 30,000 light-years around young galaxies using the ALMA.

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Science November 25, 2019

Planets Around a Black Hole?―Calculations Show Possibility of Bizarre Worlds

Theoreticians in two different fields defied the common knowledge that planets orbit stars like the Sun. They proposed the possibility of thousands of planets around a supermassive black hole.

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Science November 19, 2019

Subaru Telescope Detects the Mid-infrared Emission Band from Complex Organic Molecules in Comet 21P/Giacobini-Zinner

Using the Subaru Telescope, astronomers have detected an unidentified infrared emission band from comet 21P/Giacobini-Zinner (hereafter, comet 21P/G-Z) in addition to the thermal emissions from silicate and carbon grains.

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Science November 14, 2019

Two Cosmic Peacocks show Violent History of the Magellanic Clouds

Two peacock-shaped gaseous clouds were revealed in the Large Magellanic Cloud (LMC) by observations with the Atacama Large Millimeter/submillimeter Array (ALMA).

Science November 1, 2019

Worldwide Observations Confirm Nearby “Lensing” Exoplanet

Researchers using telescopes around the world confirmed and characterized an exoplanet orbiting a nearby star through a rare phenomenon known as gravitational microlensing.

Topics October 8, 2019

Saturn Surpasses Jupiter After Confirmation of 20 New Moons

Using the Subaru Telescope, a team led by Carnegie's Scott S. Sheppard of the Carnegie Institution for Science has officially "discovered" 20 new moons orbiting Saturn by characterizing their orbits.

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Topics October 4, 2019

Three gravitational-wave detectors sign agreement to begin joint observation. Collaboration will enable pinpointing origin of gravitational-wave events

The world’s three principal gravitational-wave detectors have signed a memorandum of agreement that covers scientific collaboration, including joint observation of gravitational waves and data sharing, for the coming years.