Science April 7, 2022

Most Distant Galaxy Candidate Yet

An international astronomer team has discovered the most distant galaxy candidate to date, named HD1, which is about 13.5 billion light-years away. This galaxy candidate is one of the targets of the James Webb Space Telescope launched late last year. If observations with the James Webb Space Telescope confirm its exact distance, HD1 will be the most distant galaxy ever recorded.

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Science April 5, 2022

Prenatal Protoplanet Upends Planet Formation Models

An international research team has discovered a new planet so young that it has yet to emerge from the womb of matter where it is forming. This is the youngest protoplanet discovered to date. It’s location and the surrounding patterns of matter suggest that an alternative method of planet formation may be at work. This discovery could help to explain the histories and features of extrasolar planets seen around other stars.

Science February 25, 2022

Deep Neural Network to Find Hidden Turbulent Motion on the Sun

Scientists developed a neural network deep learning technique to extract hidden turbulent motion information from observations of the Sun. Tests on three different sets of simulation data showed that it is possible to infer the horizontal motion from data for the temperature and vertical motion. This technique will benefit solar astronomy and other fields such as plasma physics, fusion science, and fluid dynamics.

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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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