25 December
2003: On 25 December 2003, ESA's Mars Express entered orbit around Mars.
31 DEZ. 2003
Data de publicação
706
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1624: On 26 December 1624, Simon Marius died.
Marius was a German astronomer, a pupil of Tycho Brahe, who named Io, Europa, Ganymede and Callisto, the four largest moons of Jupiter. The names are those of mythological figures with whom Jupiter fell in love. Marius was one of the earliest users of a telescope.
A dispute arose when Italian astronomer Galileo Galilei also claimed to have discovered them, about 1610, but is probable they made the discoveries independently.
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22 December
1968: On 22 December 1968, the first television broadcast from a manned spacecraft in outer space was transmitted from Apollo 8.
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