U.Va Astronomer Ed Murphy explains why Pluto was demoted

U.Va astronomer Ed Murphy drops by WINA to talk with Coy Barefoot for his regular update on space and the solar system. Ed explains the International Astronomical Union’s decision last week to reclassify Pluto as a dwarf planet. Pluto lacks the mass to “clear out its neighborhood” and is no longer considered to be a full planet. Ed gives his opinion on this, and also gives an update on the two Voyager probes and the Pluto Express mission.