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When Is a Nova Not a ‘Nova’? When a White Dwarf and a Brown Dwarf Collide

Using ALMA, an international team of astronomers found evidence that a white dwarf and a brown dwarf collided in a short-lived blaze of glory that was witnessed on Earth in 1670 as Nova sub Capite Cygni (a New Star below the Head of the Swan), which...
8-Oct-2018 9:00 AM EDT Add to Favorites


Fierce Winds Quench Wildfire-Like Starbirth in Far-Flung Galaxy

Astronomers using ALMA, with the aid of a gravitational lens, have detected the most-distant galactic “wind” of molecules ever observed, seen when the universe was only one billion years old. By tracing the outflow of hydroxyl (OH) molecules –...
5-Sep-2018 2:00 PM EDT Add to Favorites


First Science with ALMA’s Highest-Frequency Capabilities

A team of scientists using the highest-frequency capabilities of the Atacama Large Millimeter/submillimeter Array (ALMA) has uncovered jets of warm water vapor streaming away from a newly forming star. The researchers also detected the...
17-Aug-2018 11:05 AM EDT Add to Favorites


Pair of Colliding Stars Spill Radioactive Molecules into Space

Astronomers have made the first definitive detection of a radioactive molecule in interstellar space: a form, or isotopologue of aluminum monofluoride (26AlF). The new data – made with ALMA and the NOEMA radio telescopes – reveal that this...
30-Jul-2018 11:00 AM EDT Add to Favorites

Enduring ‘Radio Rebound’ Powered by Jets From Gamma-Ray Burst:

Astronomers using ALMA studied a cataclysmic stellar explosion known as a gamma-ray burst, or GRB, and found its enduring “afterglow.” The rebound, or reverse shock, triggered by the GRB’s powerful jets slamming into surrounding debris, lasted...
26-Jul-2018 11:00 AM EDT Add to Favorites


VLA Gives Tantalizing Clues About Source of Energetic Cosmic Neutrino

A single, ghostly subatomic particle that traveled some 4 billion light-years before reaching Earth has helped astronomers pinpoint a likely source of high-energy cosmic rays for the first time. Subsequent observations with the National Science...
12-Jul-2018 11:05 AM EDT Add to Favorites

Detecting Planet Formation Beyond our Solar System

Melissa Hoffman tells us about the new techniques astronomers have developed to locate some of the youngest planets in our galaxy.
5-Jul-2018 11:05 AM EDT Add to Favorites


Even Phenomenally Dense Neutron Stars Fall Like a Feather

Astronomers have given one of Einstein’s predictions on gravity its most stringent test yet. By precisely tracking the meanderings of three stars in a single system – two white dwarf stars and one ultra-dense neutron star – the researchers...
3-Jul-2018 3:30 PM EDT Add to Favorites

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