All Stories by Mara Johnson-Groh
- Astronomy
A fast radio burst’s unlikely source may be a cluster of old stars
The burst’s origin in a globular cluster suggests that not all these enigmatic blasts come from young stellar populations.
- Space
Souped-up supernovas may produce much of the universe’s heavy elements
An old star that formed from an explosive event called a magnetorotational hypernova is revealing where elements like uranium and silver might be forged.
- Space
Fast radio bursts could help solve the mystery of the universe’s expansion
Astronomers used fast radio bursts for the first time to measure the Hubble constant in hopes of ending the debate on the universe’s expansion rate.
