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4 stories for“galaxies”

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Feeding Black Holes May Build Stars as Well as Starve Them: Nine Galaxies Show Rings of Star Birth Around Active Cores

A Harvard and Smithsonian team used the VLT's MUSE spectrograph to map nine active galactic nuclei and found star-forming rings at 2,600 to 19,600 light years, shock waves at right angles to the outflows, and a pattern that repeats in every one.

Sep 22, 2026

Technology

Andromeda Is Slowly Winding Down Its Star-Making Era

Hubble observations show star formation across Andromeda has declined for roughly 500 million years, offering a detailed preview of how a large spiral galaxy changes with age.

Aug 1, 2026

Technology

The Telescope Launching This Month Sees a Patch of Sky a Hundred Times Wider Than Hubble's

Nancy Grace Roman is not a bigger Webb. It is a survey instrument, built to photograph enormous areas of sky at Hubble-class sharpness, and its value is in the sheer volume of what it will record.

Aug 21, 2026