News

Billion-dollar telescopes could end up beyond the reach of US astronomers

Billion-dollar telescopes could end up beyond the reach of US astronomers

Change the funding system and approaches to international partnerships for US-led big science projects, urge Matt Mountain and Adam Cohen. PDF version Every ten years, US astronomers set research priorities for the following decade. The latest cycle to pick projects for the 2020s has just started. In July, the US National Academy of Sciences...

First Science with ALMA’s Highest-Frequency Capabilities

First Science with ALMA’s Highest-Frequency Capabilities

Astronomers observe cosmic steam jets and molecules galore Synopsis: 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 “fingerprints” of an astonishing assortment...

Pair of Colliding Stars Spill Radioactive Molecules into Space

Pair of Colliding Stars Spill Radioactive Molecules into Space

Summary: 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 radioactive isotopologue was ejected into space by the collision of two stars, a tremendously rare...

NRAO/ALMA News Release Enduring ‘Radio Rebound’ Powered by Jets from Gamma-Ray Burst

NRAO/ALMA News Release Enduring ‘Radio Rebound’ Powered by Jets from Gamma-Ray Burst

ALMA Creates Its First-ever Movie of Cosmic Explosion Summary: 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 thousands of times longer than expected....