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In 1835 The Sun described unicorns and bat-winged humanoids on the moon, then admitted weeks later it was all fabricated.

iPTF14hls was supposed to dim in 100 days. Instead it exploded five more times over 1,000 days. Archival photos show it also exploded in 1954. No theory fully explains it.

The Vatican Observatory has operated since 1774. Four nuns cataloged nearly half a million stars for it in the early 20th century. Today it runs a telescope in Arizona.