NOVA scienceNOW: Stories 2006 | Forum profile

We can't stop earthquakes or hurricanes, but we might be able to prevent adeadly asteroid from hitting our planet. Spurred by the remote but realpossibility that a rocky orb called Apophis could strike Earth in the year2036 with devastating effects, scientists are exploring ways to deflectasteroids, including the use of a "gravitational tractor." Should moremoney be spent researching how to nudge...

Big changes are coming to the PBS Discussion Boards and we’d like for you to be involved in creating a more welcoming, and easier to use area for the public to share and interact with PBS content. In the coming months PBS Engage (http://www.pbs.org/engage), the social media laboratory for the Public Broadcasting Service, will be examining new solutions that will allow you to continue to ...