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A Quintillion-to-One: Giant Stars, Tiny Dust

A Quintillion-to-One: Giant Stars, Tiny Dust

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) and NASA’s James Webb Space Telescope (JWST) have discovered that some of the most massive stars in our galaxy are emitting unbelievably tiny grains of carbon dust—dust that one day could form future stars and planets.

Magnetic Superhighways Discovered in a Starburst Galaxy’s Winds

Magnetic Superhighways Discovered in a Starburst Galaxy’s Winds

Using the Atacama Large Millimeter/submillimeter Array (ALMA), an international team of astronomers has mapped a magnetic highway driving a powerful galactic wind into the nearby galaxy merger of Arp 220, revealing for the first time that its fast, molecular outflows are strongly magnetized and likely helping to drive metals, dust, and cosmic rays into the space around the galaxy.