nations, other universities and observatories looking up and out for threats to our planet. the 11,000 near earth objects have been discovered and identified, many with diameters of at least 1 kilometer. one way to protect the planet is to capture and redirect it using the gravity of a spacecraft, and that is a space mission nasa is currently working towards to pull off sometime in the 2020s were a spacecraft would fly out to kind of lasso if you will with gravity, and asteroid, redirected into a new orbit around the moon and land asteroids on it. bill: that would be one heck of a field trip. see you soon. jaimie: this winter's historic snowfall not only clogging up roads, but shipping lanes on the great lakes.