The smallest galaxy currently known in the universe is Segue 2.
Here's a breakdown of what makes Segue 2 so small:
- Size: Segue 2 is incredibly tiny, consisting of just about 1,000 stars.
- Location: It resides in the Aries constellation, approximately 114,000 light-years away from us.
- Composition: Despite its small size, it is held together by a bit of dark matter.
- Discovery: This measurement of its size was made by scientists at UC Irvine as of July 30, 2023.
Segue 2’s extremely low mass distinguishes it as the least massive galaxy found to date, as described in the reference.
