On January 5, 2005, astronomers at NASA discovered Eris, the second-largest dwarf planet in the solar system. Space History Archives👉 https://space-com.visitlink.me/5osI5c Eris is just slightly smaller than Pluto, and it orbits the sun about three times farther than Pluto. NASA first thought that Eris was bigger than Pluto, and they originally described Eris as the 10th planet in the solar system. But the International Astronomical Union, or IAU, wasn't too thrilled about adding Ceres to the li

28 reactions | Neil deGrasse Tyson Explains Why Pluto Is NOT a Planet  Pluto Debate #space #pluto #shorts #fblifestyle | Theoretical Tales | Facebook

75K views · 618 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