The Palomar Observatory discovers an asteroid heading towards Earth. The Hubble Space Telescope provides more details about its path and size. Scientists determine it will pass close to Earth in 2029. Videos show the potential damage if it were to impact. Teams are formed to study ways to alter its course or evacuate Earth. The document's author is selected to lead a colony on Mars or another celestial body before the asteroid arrives. After reviewing options, Mars is chosen due to its distance, temperature and signs it contains water and other resources to sustain life. Plans are made to establish a base on Mars for colonization before 2029.