Breathe easy: New space telescope could spot potentially hazardous asteroids heading for Earth Share Updated: 8:46 PM CDT Jun 30, 2021 By Ashley Strickland, CNN Share Updated: 8:46 PM CDT Jun 30, 2021 Hide Transcript Show Transcript mhm. Mhm. Yeah. According to Nasa every year at least one car sized asteroid makes its way into our atmosphere and while asteroid 2021 KT one won't be making landfall in our home planet, it is going to be coming pretty darn close and it's a whole lot bigger than a car. Nasa has classified the asteroid up potentially hazardous object as it will come within 4.6 million miles of earth back in april asteroid 2021 G W four passed within 12,000 miles of us, but that one was only about 20 m in diameter. Katie one is about 600 ft long and whipping through space at around 40,000 MPH. It will be joined by four other less dangerous house and airplane sized asteroids in the days flanking Katie ones more possibly hazardous past asteroids generally keep on their orbital paths around the sun, but sometimes the gravitational pull of a planet is enough to pull one onto a new course, luckily none of the big ones have hit Earth in a while, and Nasa is developing techniques to lead an asteroid away from our planet if they are on a collision course, but it could still happen, and we all know how that turned out last time. Mhm.