Mile-Stones: Great Moments in Asteroid Exploration
Smaller, more numerous and less studied than the major planets of our solar system, asteroids have long been of interest to planetary scientists because of what they can reveal about the formation of our solar system. More recently, they have gained attention because of the risk of future impacts with Earth and because of the resources they hold that may one day be put to use in the development of space. Here are some of the key “firsts” in humanity’s exploration of the asteroids so far.