Tonya Hall talks to KT Ramesh, professor at Johns Hopkins University, to learn more about how technology can be used to break an asteroid into tiny pieces, along with the hazards that come from this. Follow ZDNet: Watch more ZDNet videos: http://zd.net/2Hzw9Zy Subscribe to ZDNet on YouTube: http://bit.ly/2HzQmyf Follow ZDNet on Twitter: https://twitter.com/ZDNet Follow ZDNet on Facebook: https://www.facebook.com/ZDNet Follow ZDNet on Instagram: https://www.instagram.com/ZDNet_CBSi Follow ZDNet on LinkedIn: https://www.linkedin.com/company/zdnet-com/ Follow ZDNet on Snapchat: https://www.snapchat.com/add/zdnet_cbsi Learn more about your ad choices. Visit megaphone.fm/adchoices