Chunks of Alpha Centauri—Our Closest Stellar Neighbor—Might Have Already Reached Us
A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...
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Grab the Chance to See Six Planets in a Spectacular Planet Parade This Weekend
Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.