5.6K views · 103 reactions | On the anniversary of Pluto's discovery, here are five things you might not have known about the dwarf planet  | Reuters | Facebook

75K views · 617 reactions | Many people still don’t understand why Pluto was reclassified as a dwarf planet in 2006, including four-year old Charlie. Here, leading astrophysicist and Academy Fellow Professor Elaine Sadler explains Pluto's planetary demotion. | Australian Academy of Science | Facebook

5.5K views · 109 reactions | In 2003, the Pluto Underground convinced NASA to send a spacecraft to the dwarf planet. What followed was one of the most ambitious efforts in scientific history.  #SpacesDeepestSecrets | Discovery Channel UK | Facebook