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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.
By Dr. Pamela Gay, Erik Madaus, Ally Pelphrey4.3
8787 ratings
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.

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