In 2006, Pluto was officially stripped of its planetary status. Now that debate is being reignited with some astronomers calling for the reinstatement of Pluto as a planet, arguing that the icy world should never have been demoted in the first place. So what is the deal? Is Pluto a planet?
What if we could take a shortcut through spacetime and visit another galaxy? Sci fi movies have imagined the possibility for years, but are wormholes real?