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

Search
5 stories for“astronomy”
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

Fast radio bursts last a millisecond and arrive smeared by everything they pass through. Caltech's Kritti Sharma and Vikram Ravi used that smear from about a hundred of them to measure how clumpy the gas between galaxies is. It is smoother than anyone thought.
Sep 15, 2026

The clearest picture yet of Betelgeuse B was taken with the Very Large Telescope. The caveat almost all the coverage dropped is the astronomer's own: he cannot be sure until he sees it again on the other side of the star, a year from now.
Aug 28, 2026

Hubble has confirmed a decagon riding a jet stream around Saturn's south pole, each side longer than Earth is wide. The northern hexagon has been there for forty years. This one was not there in 2022.
Sep 6, 2026

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
