Summary:
- Betelgeuse, a bright red star in the Orion constellation, has a previously unknown companion star that orbits it.
- This companion star was discovered using data from the Hubble Space Telescope and other observatories, providing new insights into the Betelgeuse system.
- The discovery of this companion star helps scientists better understand the complex nature of Betelgeuse, which is a massive, aging star that is expected to eventually explode as a supernova.