Asteroid Apophis Will Not Hit Earth for 100+ Years, NASA Says near-earth asteroid flight patterns give new lease on life By Jonny Lupsha, Current Events Writer A near-Earth asteroid won’t strike for at least another 100 years. Earlier predictions claimed an impact was due in 2029, 2036, and 2068, but NASA now says we have more time left. However, we do have observational and defensive measures in mind. Scientists use the Torino scale to combine the size, or energy, of an asteroid with the probability of it hitting Earth and then assign it a number that qualifies the level of immediate danger. (Image:Shutterstock/Dotted Yeti)