Asteroid Apophis was discovered in 2004, and will make its visit to Earth tomorrow, Jan. 9, 2013, passing through Near Earth space within 0.1 AU which is 4,450,00 or 8,980,000 miles (AU means Astronomical Unit). Although presents nearly zero chance of striking Earth at this time, it is not so in 2036. In 2036, unless it changes its course, Apophis presents a 1-in-250,000 … [Read more...] about A visit from Apophis on January 9, 2013