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.

Science October 4, 2019

Massive Filaments Fuel the Growth of Galaxies and Supermassive Black Holes

An international group of scientists has used observations from the ESO Very Large Telescope (VLT) and the Subaru Telescope to make detailed observations of the filaments of gas connecting galaxies in a large proto-cluster in the early Universe.

Science September 27, 2019

Oldest Galaxy Protocluster forms “Queen’s Court”

Using the Subaru, Keck, and Gemini Telescopes, an international team of astronomers has discovered a collection of 12 galaxies which existed about 13.0 billion years ago.

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Science August 8, 2019

ALMA Identified Dark Ancestors of Massive Elliptical Galaxies―Unexpected Hidden Galaxies Question Theories of Universe Evolution

Researchers using ALMA identified 39 faint galaxies that are not seen with the Hubble Space Telescope’s deepest view of the Universe 10 billion light-years away.