Is NASA aware of any Earth-threatening asteroids? Luckily there are no known asteroid threats to Earth for at least 100 years. But that doesn’t mean we’re not looking. Asteroid expert Davide Farnocchia of our@NASA Jet Propulsion Laboratory breaks it down. <br /> <br />Learn about how we track asteroids: <a href="https://www.nasa.gov/asteroids" target="_blank" rel="nofollow">https://www.nasa.gov/asteroids</a><br /><br />Producer/Editor: James Lucas<br />Producers: Scott Bednar, Jessica Wilde<br />...<br /><a href="https://www.youtube.com/watch?v=2CnpeAkuxOQ" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=2CnpeAkuxOQ</a>