MARK GARLICK via Getty Images/Science Photo Libra Illustration of NASA's Double Asteroid Redirection Test (DART) spacecraft approaching the binary near-Earth asteroid Didymos. AdvertisementHowever, scientists have since confirmed that it will safely pass close to our planet – and won’t impact Earth for at least 100 years. How big is the Apophis asteroid? To put that into perspective, the Empire State Building is 443 metres tall (including the spire and antenna). When will it pass Earth?