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1 gen 1783 anni - William Hershel, a British Astronomer, measures Mars' axial tilt with his reflecting telescopes. He also believes the planet has polar ice caps.
Aggiunto al nastro di tempo:
28 gen 2018
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History of Mars by Juan Centeno
Data:
1 gen 1783 anni
Adesso
~ 241 years ago
Immagini: