- Science
- Global
XRISM clocks hot wind of galaxy M82 at 2 million mph
- March 25, 2026 at 8:10 PM
- 5 views
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 material is moving more than 2 million miles (over 3 million kilometers) per hour and appears to be the primary force driving a cooler, well-studied, galaxy-scale wind.
Originally published at Phys.org