Will a comet crash into Earth?

Chris Smith from The Naked Scientists takes on YOUR questions with Eusebius McKaiser... Why do my nails hurt after I remove nail polish? What does GI mean? Do black holes stop the universe expanding? How are flight routes planned? Will a comet crash into Earth? Why do I get electric shocks from my car? Plus, the first ever image of a black hole! For more podcasts by The Naked Scientists, head to https://www.thenakedscientists.com/podcasts You can follow the team on Instagram, Twitter and Facebook. Like this podcast? Please help us by supporting the Naked Scientists