NASA System Predicts Impact of Small Asteroid

When Was the Last Time an Asteroid Hit Earth? We Asked a NASA Scientist: Episode 13 - NASA

vt.physics on Instagram: "NASA Lost a Giant Asteroid and Nobody Noticed! Back in 2007, astronomers discovered an asteroid named 2007 FT3 and initial calculations suggested it could be on a collision course with Earth. But just a day later, the asteroid vanished without a trace! Even with just a day’s worth of data, NASA managed to predict 89 different ways this asteroid could swing by and hit us. Could they be right? And… What with all the strange leaked documents floating around?!! #physics #sc

Is Earth "overdue" for an asteroid?

An asteroid near Earth could become a temporary moon, then a crash risk