Science February 5, 2020

Artificial Intelligence tool developed to predict the structure of the Universe

A team of researchers used the world’s fastest astrophysical simulation supercomputers ATERUI and ATERUI II to develop the Dark Emulator.

Science January 17, 2020

Here and Gone: Outbound Comets are Likely of Alien Origin

Astronomers at the NAOJ have analyzed the paths of two objects heading out of the Solar System forever and determined that they also most likely originated from outside of the Solar System.

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Science January 15, 2020

Active Asteroid Unveils Fireball Identity

At around 1 a.m. local standard time on April 29, 2017, a fireball flew over Kyoto, Japan.

Science January 9, 2020

Stellar Heavy Metals can Trace History of Galaxies

Astronomers have cataloged signs of 9 heavy metals in the infrared light from supergiant and giant stars.

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).