- Betelgeuse (stars.astro.illinois.edu)
BETELGEUSE (Alpha Orionis). The great star Betelgeuse is one of the two that dominate mighty Orion of northern winter, the other Rigel, the pair respectively also called Alpha and Beta Orionis.
- Bedrock (Wikipedia)
In geology, bedrock is solid rock that lies under loose material (regolith) within the crust of Earth or another terrestrial planet.