December 12, 2012 – SPACE - The asteroid known as Toutatis will make its closest approach to Earth tonight. From Tuesday night to Wednesday morning, the 3-mile long asteroid will be about 18 times the distance of the moon from the Earth. And if you miss it Tuesday night, don't worry. The asteroid should be visible if you have the right conditions, the right telescope and a good star chart -- through the end of the week.Even at its closest approach you won't be able to see Toutatis with the naked eye.