Science December 23, 2021

Billions of Starless Planets Haunt Dark Cloud Cradles

An international team has found about 100 planets floating freely in space rather than orbiting stars. Extrapolating this sample to the rest of the Milky Way Galaxy suggests that there are billions of undiscovered starless planets tumbling aimlessly through space.

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Science December 14, 2021

Stellar “Ashfall” Could Help Distant Planets Grow

The world’s first 3D simulation simultaneously considering dust motion and growth in a disk around a young star has shown that large dust from the central region can be entrained by and then ejected by gas outflows, and eventually fall back onto the outer regions of the disk where it may enable planetesimal formation.

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Science December 10, 2021

Fiery Dragon’s Breath May Scorch Young Planets

The star EK Draconis has belched out a stream of flaming gas. This is the first time such a supermassive filament eruption has been observed on a Sun-like star. Since, EK Draconis is similar to the Sun in size, but younger, this could indicate that the Sun also produced such supermassive ejections long ago. Large amounts of flaming gas from the Sun would have made the environment harsh for the planets, including the young Earth where life was first emerging.

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Science December 2, 2021

Stellar Cocoon with Organic Molecules at the Edge of our Galaxy

For the first time, astronomers have detected a newborn star and the surrounding cocoon of complex organic molecules at the edge of our Galaxy, which is known as the extreme outer Galaxy. The discovery, which revealed the hidden chemical complexity of our Universe, appears in a paper in The Astrophysical Journal.

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Science November 13, 2021

Simulations Provide Clue to Missing Planets Mystery

Forming planets are one possible explanation for the rings and gaps observed in disks of gas and dust around young stars. But this theory has trouble explaining why it is rare to find planets associated with rings. New supercomputer simulations show that after creating a ring, a planet can move away and leave the ring behind.

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Science October 7, 2021

First ALMA Animation of Circling Twin Young Stars

Researchers analyzed the accumulated data from ALMA and depicted the motion of a young twin star system XZ Tauri over three years. This first-ever “ALMA Animation” of twin stars sheds new light on the origins of the binary stars and the planets to be formed around them.

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Science September 23, 2021

Unveiling Galaxies at Cosmic Dawn That Were Hiding Behind the Dust

While investigating the data of young, distant galaxies observed with the Atacama Large Millimeter/submillimeter Array, unexpected emissions coming from seemingly empty regions in space were detected. A global research team confirmed that they came actually from two hitherto undiscovered galaxies heavily obscured by cosmic dust.

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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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