Betelgeuse dimming again! Hubble understands last winter’s dimming. Plus Ganymede hit with massive asteroid in distant past.
Manage episode 269757742 series 2560695
Join us today as we take another look at the dimming antics of Betelgeuse, which is up to those old tricks again. Research from Hubble helped understand last winter’s event. And Ganymede is covered with one massive crater as a result of a giant impact four billion years ago.