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Facts

  Factv Category Date  
16 Mercury has no moons. Science > Astronomy 09/02/08
17 Mercury is the closest planet to the sun. Science > Astronomy 05/20/08
18 Neptune is the eighth planet from the sun. Science > Astronomy 07/30/08
19 Neptune is the Roman name for Poseidon. Science > Astronomy 07/08/08
20 Our galaxy is called the Milky Way. Science > Astronomy 05/20/08
21 Pluto has has three known moons (as of September 2009): Charon, Nix and Hydra. Science > Astronomy 03/30/10
22 Proxima Centauri is discovered in 1915. Science > Astronomy 02/11/12
23 Puck was discovered by Voyager 2 in 1985. Science > Astronomy 04/10/17
24 Sir William Herschel discovered the planet Uranus in March 1781. Science > Astronomy 06/11/08
25 Sometimes Pluto is closer to the Sun than Neptune. Science > Astronomy 05/09/10
26 Sunspots are regions of lower-than- average temperatures that are associated with intense magnetic activity. Science > Astronomy 10/28/08
27 The brightest star in the night sky is Sirius. Science > Astronomy 11/01/08
28 The center of the Andromeda Galaxy is a supermassive black hole. Science > Astronomy 12/01/10
29 The closest star to Earth, besides the Sun, is Proxima Centauri. Science > Astronomy 06/29/08
30 The first rover to successfully land on Mars was Sojourner, which landed July 4, 1997. Science > Astronomy 11/05/08


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