On Dec. 9-10, skywatchers across parts of Canada, the U.S. and Europe will witness a very rare occultation of the bright star ...
Modern Engineering Marvels on MSN
Planetary alignments could unlock alien radio secrets
A startling calculation has emerged from recent research: if an extraterrestrial intelligence were positioned to observe an alignment of Earth and Mars, there is a 77% chance they would be in the path ...
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