Despite new information, Pluto will remain a dwarf planet, cosmologist says

Back in 1930, it was an easy answer — Pluto was a planet because we couldn’t see anything else brighter at a similar distance away from us, says a cosmologist. Then, in the 1990s, astronomers began detecting more and more planet-like objects around Pluto and the questions started — was Pluto a planet or not? —> Read More