Summary:
- Betelgeuse, a bright red star in the Orion constellation, is not traveling alone through space. It is accompanied by a smaller companion star that orbits around it.
- This companion star was recently discovered by astronomers using data from the Hubble Space Telescope. It is about 1/10th the mass of Betelgeuse and orbits it at a distance of about 50 billion miles.
- The discovery of this companion star provides new insights into the evolution and behavior of Betelgeuse, which is known for its unpredictable brightness changes and is expected to eventually explode as a supernova.