Galaxy winds as a research area investigates large-scale gaseous outflows driven by processes within galaxies, such as stellar feedback from massive stars and supernovae or energy and momentum injection from active galactic nuclei. This field focuses on the multi-phase structure, kinematics, and energetics of these winds, their impact on galaxy evolution, star formation regulation, metal enrichment of the circumgalactic and intergalactic media, and the closing of the baryon cycle. Research combines observational diagnostics across the electromagnetic spectrum with theoretical modeling and simulations to quantify mass-loading factors, escape fractions, and the coupling between radiation, cosmic rays, magnetic fields, and outflowing gas.
Stars and galaxies make up much of the universe's ordinary, observable matter. But for decades, scientists have wrestled with a cosmic conflict: There should be much more.
Astronomy
Jul 21, 2026
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Located 12 million light-years away and undergoing rapid star formation, edge-on spiral galaxy Messier 82 (M82) is a scientifically unique sight to behold, and now NASA's James Webb Space Telescope has revealed previously ...
Astronomy
Jun 23, 2026
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Thanks to the X-Ray Imaging and Spectroscopy Mission, or XRISM, University of Michigan researchers are helping chip away at one of astronomy's cosmic mysteries: The universe's most massive galaxies appear to be missing stars.
Astronomy
Jun 16, 2026
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Astronomers have discovered a "galaxy-killing wind" that may explain why there are far more massive "dead" galaxies than expected in the early universe. This wind, powered by cosmic collisions between galaxies, could quickly ...
Astronomy
Jun 10, 2026
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The thinking around exoplanet habitability is mostly concerned with a planet's distance from its star. Too close, and any surface water is boiled away into space. Too far, and surface water is frozen. Both are severe limits ...
Astrobiology
May 25, 2026
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This NASA Hubble Space Telescope image reveals an enigmatic galaxy with a bright center and a face that hints at spiral structure, yet it holds no obvious spiral arms. Reddish-brown clumps and filaments of dust partially ...
Astronomy
May 18, 2026
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Supermassive black holes lurk at the centers of massive galaxies, including our own Milky Way. Puzzlingly, supermassive black holes more than a billion times the mass of the sun appear to exist just a few hundred million ...
Astronomy
May 6, 2026
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For the first time, astronomers have directly measured the speed of superheated gas billowing from a cauldron of stellar activity at the heart of M82, a nearby galaxy undergoing an extraordinary burst of star formation. The ...
Astronomy
Mar 25, 2026
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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 ...
Astronomy
Jan 27, 2026
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Using the Australian Square Kilometer Array Pathfinder (ASKAP), an international team of astronomers has discovered a spectacular bipolar outflow from the disk of a nearby galaxy known as ESO 130-G012. The finding was reported ...
