Abell 1689

A Magnified Supernova

[/caption] Supernovae are among astronomers most important tools for exploring the history of the universe. Their frequency allows us to…

13 years ago

Hubble Provides Most Detailed Dark Matter Map Yet

[/caption] Using Hubble's Advanced Camera for Surveys, astronomers have been able to chart invisible dark matter in a distant galaxy,…

14 years ago