Rarest Stars in the Universe: Stars come in many forms, but some types are so rare that only a handful exist in our galaxy. For example, O-type stars account for just 0.00003% of the stars near the ...

Betelgeuse, as imaged by the Hubble Space Telescope on August 13, 2020. Image: ESO/Digitized Sky Survey 2. Acknowledgment: Davide De Martin The bright star Betelgeuse, a prominent member of the Orion ...