Theresults of the exercise are detailed in a study published in the Planetary Science Journal on Tuesday, May 31. The exercise focused on the real asteroid Apophis. For a short while after its discovery in 2004, Apophis was assessed to have a significant chance of impacting Earth in 2029 or later. But based on tracking measurements taken Simulationof a 120-meter asteroid entering the atmosphere at 20 kilometers per second (km/s) and impacting the ground, releasing the energy Thiswork introduces two Monte Carlo (MC)-based sampling methods, known as line sampling and subset simulation, to improve the performance of standard MC analyses in the context of asteroid impact risk assessment. Both techniques sample the initial uncertainty region in different ways, with the result of either providing a more Thereis currently no technology on Earth that could stop a massive asteroid from wiping out Europe, according to a simulations carried out by leading space Asof 2015, approximately 10,000 near-Earth asteroids larger than 30 meters in diameter have been discovered—and the actual total number is estimated to be more than 1 million. Of those discovered, 1,600 are classified as hazardous. Simulating an asteroid impact requires detailed modeling of the asteroid itself, including its . Asimulation by the Discovery Channel has provided a visual scenario to take us through it. According to the video's description box , these are the details: "An asteroid with a diameter of 500 km Yes and furthermore, a 480km diameter crater is made by a much smaller asteroid (less than 100km probably). Actually an impact such as depicted (a 500km diameter asteroid) would completely destroy earth surface and make it a lava lake surrounded by a gigantic cloud of matter and vapor tens of thousands km high. Thissite was gouged out when a large asteroid hit Earth some 207 million years ago, around when the Triassic-Jurassic mass extinction occurred. Computer simulations show that the impact Theforce of the collision is enough to push Apophis more than 1,800km (1,118 miles) off course – which in the simulation would have ended with a direct hit on Planet Earth – and the world is Researcherssimulate defense of the Earth against asteroid impact. by University of Bern. Two-dimensional slices (taken at y = 0 in the x–z plane) showing possible asteroid morphologies after

asteroid impact on earth simulation