Science September 16, 2021

Untangling the Formation of Planetary Systems with Deuterium

An international research team using ALMA revealed the distribution of heavy hydrogen, or deuterium, in planet formation sites with the highest resolution ever achieved. This provides clues to understand the physical and chemical conditions during the formation of exoplanets and Solar System objects.

Science September 10, 2021

Largest Virtual Universe Free for Anyone to Explore

An international team of researchers developed the largest and most detailed simulation of the Universe to date and has made it freely available on the cloud to everyone. This simulation, named Uchuu, will help astronomers to interpret results from Big Data galaxy surveys.

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Science July 8, 2021

New Radio Receiver Opens Wider Window to Radio Universe

Researchers have used the latest wireless technology to develop a new radio receiver for astronomy. This is expected to enable significant progresses in the study of the evolution of the Universe and the mechanisms of star and planet formation.

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Science July 7, 2021

Small Amount of Lithium Production in Classical Nova

A new study of lithium production in a classical nova found a production rate of only a couple of percent that seen in other examples. This shows that there is a large diversity within classical novae and implies that nova explosions alone cannot explain the amount of lithium seen in the current Universe. This is an important result for understanding both the explosion mechanism of classical novae and the overall chemical evolution of the Universe.

Science July 2, 2021

Observation, Simulation, and AI Join Forces to Reveal a Clear Universe

Japanese astronomers have developed a new artificial intelligence (AI) technique to remove noise in astronomical data due to random variations in galaxy shapes. This is a powerful new tool for analyzing big data from current and planned astronomy surveys.

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Science June 29, 2021

A New Type of Supernova Illuminates an Old One

A worldwide team of astronomers has discovered evidence for a new type of stellar explosion -- an electron-capture supernova. While this type has been theorized for over 40 years, this is the first observed example. These findings provide clues to the precursor of the Crab Nebula, a supernova observed by cultures all over the world in 1054.

Science June 11, 2021

ALMA Discovers Earliest Gigantic Black Hole Storm

Researchers using the ALMA discovered a titanic galactic wind driven by a supermassive black hole 13.1 billion years ago. This is the earliest-yet-observed example of such a wind to date and is a telltale sign that huge black holes have a profound effect on the growth of galaxies from the very early history of the Universe.

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Science May 21, 2021

ALMA Discovers the Most Ancient Galaxy with Spiral Morphology

Analyzing data obtained with the Atacama Large Millimeter/submillimeter Array (ALMA), researchers found a galaxy with a spiral morphology by only 1.4 billion years after the Big Bang. This is the most ancient galaxy of its kind ever observed.

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Science May 14, 2021

Charting the Expansion History of the Universe with Supernovae

An international research team analyzed a database of more than 1000 supernova explosions and found that models for the expansion of the Universe best match the data when a new time dependent variation is introduced.

Science May 10, 2021

Star Formation Triggered by Cloud–Cloud Collisions

Japanese researchers have found that collisions of gas clouds floating in space precipitate the birth of star clusters.