News Astronomy

An otherwise quiet galaxy in the early universe is spewing star stuff

Astronomers did not expect to see hot gas pushed so far from the galaxy’s center

illustration of galaxy A1689-zD1 showing warmer gas in yellow in the middle and cooler gas in red spreading out

In galaxy A1689-zD1 (illustrated), cooler gas (red) extends farther than the stars and hot gas (yellow). Astronomers think some energetic activity is pushing gas to the galaxy’s outskirts.

ALMA/ESO, NAOJ and NRAO; B. Saxton/NRAO/AUI/NSF

By Liz Kruesi

- More than 2 years ago

PASADENA, Calif.