 Apophis, a god to the Egyptian who lucked in the dark and only sought to restore chaos from order. Apophis never had a form or cult and was never worshipped, but he would feature in a number of tales dealing with his efforts to destroy the sun god and return order to chaos. Apophis is associated with earthquakes, thunder, darkness, storms and death, wait to hear this. On April the 13th in 2029 which happens to be Friday the 13th, something very unsettling will happen. A massive asteroid, the 1100ft wide Apophis, will pass so close to the earth that it will be visible in the sky all around the world. It won't strike our planet on this occasion, but it will pass closer than 20,000 miles from the surface, eye wateringly close and we will see it in 8 years. The problem with an asteroid coming this close to our planet is the orbital alteration that is certain to occur. Earth's gravity will alter the Apophis encounter in 2029 and this means that on its next flyby in 2036, the influence by both Earth's gravity and the object's sun perihelion means that it could be pulled onto a collision course with us in 2036. Of course these alterations are unforeseen just now and the agreement amongst astronomers is that the Apophis asteroid will miss the earth on three passes, but none the less governments are mobilising all around the world, China, Japan, Russia, India, Europe and the UK are all developing solutions for asteroid scenarios should their trajectories become Earth-facing. And the most promising is the American double asteroid redirect test which will begin practice operations on October 2022. And during the 30th of 1908 an asteroid some 120 feet wide entered the atmosphere and then exploded in an Earthburst-type event over forested Siberia, so-called the Tunguska event, with the resulting shockwave mowing down trees for miles. People 20 miles away from the epicenter reported being thrown into the air and 40 miles away the blast threw a man from his chair. While in London they played cricket through the night, such was the reflection from dust particles in the atmosphere having been thrown up by the impact. And if it had hit a major city it would have flattened it. The Apophis asteroid is a danger, the mobilisation we are seeing all around the world are space agencies preparing to deal with an orbital alteration of this object that could see it come onto a collision course with our planet. The likelihood is however, will not be altered onto a collision course with Earth and according to NASA there's nothing to worry about. It will happen one day of course and if it happens tomorrow the only option we currently have is to launch missiles at it. And if the redirect test succeeds then we gain the know-how how to stop asteroids. But what do you guys think about this anyway? Comments below and thank you for watching.