The 2011 Brit Marling sci-fi film Another Earth posited the idea of a mirrored version of Earth entering the Milky Way. The idea seems preposterous, and it probably is–in the film, the “other Earth” ...
Once upon a time, there were three huge galaxies in the Local Group that were the best of friends, Andromeda, The Milky Way and the Milky Way’s slightly smaller sibling, M32p. For a long time the ...
The Local Group, a relatively small galaxy group, contains approximately 50 confirmed galaxies, with an additional 30 possible members, predominantly dwarf galaxies. Three large spiral galaxies ...
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