Betelgeuse, Betelgeuse... Betelbuddy? Experts Think This Supergiant Star Might Have a Partner
Betelgeuse goes through periods of brightening and dimming, usually in a 400-day cycle ... which in turn caused the star to ...
EurekAlert!2y
Chart of Betelgeuse brightness over time (IMAGE)
During this observation gap in 2020, NASA's STEREO spacecraft -- with measurements shown in red -- stepped in to observe Betelgeuse from its unique vantage point, revealing unexpected dimming by ...