In pictures: How to protect Earth from asteroid de...
There has been much discussion about how NASA and others could protect Earth from the threat of asteroids catastrophically striking the planet. This month NASA issued a report on the conclusions reached by a group of experts on the best ways to find, track and possibly deflect asteroids headed for Earth. Here we take a look at some of the key findings as well as other asteroid detection projects.
In pictures: How to protect Earth from asteroid destruction