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.

Science May 6, 2021

A New Window to See Hidden Side of Magnetized Universe

New observations and simulations show that jets of high-energy particles emitted from the central massive black hole in the brightest galaxy in galaxy clusters can be used to map the structure of invisible inter-cluster magnetic fields. These findings provide astronomers with a new tool for investigating previously unexplored aspects of clusters of galaxies.

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Science April 22, 2021

ALMA Discovers Rotating Infant Galaxy with Help of Natural Cosmic Telescope

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers found a rotating baby galaxy 1/100th the size of the Milky Way at a time when the Universe was only seven percent of its present age.

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Science April 16, 2021

Surprise Twist Suggests Stars Grow Competitively

A survey of star formation activity in the Orion Nebula Cluster found similar mass distributions for newborn stars and dense gas cores, which may evolve into stars. Counterintuitively, this means that the amount of gas a core accretes as it develops, and not the initial mass of the core, is the key factor in deciding the final mass of the produced star.

Science April 14, 2021

Telescopes Unite in Unprecedented Observations of Famous Black Hole

In April 2019, scientists released the first image of a black hole in the galaxy M87 using the Event Horizon Telescope (EHT). However, that remarkable achievement was just the beginning of the science story to be told. Data from 19 observatories are being released that promise to give unparalleled insight into this black hole and the system it powers, and to improve tests of Einstein's General Theory of Relativity.

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Science April 6, 2021

Exploring Comet Thermal History: Burnt-out Comet Covered with Talcum Powder

The world’s first ground-based observations of the bare nucleus of a comet nearing the end of its active life revealed that the nucleus has a diameter of 800 meters and is covered with large grains of phyllosilicate; on Earth large grains of phyllosilicate are commonly available as talcum powder.

Science March 29, 2021

Stellar Eggs near Galactic Center Hatching into Baby Stars

Astronomers found a number of stellar eggs containing baby stars around the center of the Milky Way using ALMA. These findings indicate that star formation is more resilient than researchers thought.

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Science March 19, 2021

American Astronomers Find Secrets of Japanese Universes

Working from a mock catalog of galaxies prepared by a Japanese team, two American teams correctly guessed the cosmological parameters used to generate the catalog to within 1% accuracy. This gives us confidence that their methods will be able to determine the correct parameters of the real Universe when applied to observational data.

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