Simon Marius had independently discovered the moons one day after Galileo, although he did not publish his book on the subject until 1614. Even so, the names Marius assigned are used today: Ganymede, Callisto, Io, and Europa. No additional satellites were discovered until E. E. Barnard observed Amalthea in 1892.
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29/04/2015 · National Geographic stories take you on a journey that’s always enlightening, often surprising, and unfailingly fascinating.
Derksen en Van der Gijp clashen over van Nieuwkerk: ‘Je lult uit je nek!'
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