Home > Asteroids, Astronomy, Solar System > Paintballs May Deflect An Incoming Asteroid: With 20 Years’ Notice, Paint Pellets Could Cause An Asteroid To Veer Off Course

Paintballs May Deflect An Incoming Asteroid: With 20 Years’ Notice, Paint Pellets Could Cause An Asteroid To Veer Off Course


In the event that a giant asteroid is headed toward Earth, you’d better hope that it’s blindingly white. A pale asteroid would reflect sunlight — and over time, this bouncing of photons off its surface could create enough of a force to push the asteroid off its course.

How might one encourage such a deflection? The answer, according to an MIT graduate student: with a volley or two of space-launched paintballs.

Sung Wook Paek, a graduate student in MIT’s Department of Aeronautics and Astronautics, says if timed just right, pellets full of paint powder, launched in two rounds from a spacecraft at relatively close distance, would cover the front and back of an asteroid, more than doubling its reflectivity, or albedo. The initial force from the pellets would bump an asteroid off course; over time, the sun’s photons would deflect the asteroid even more.

Full Story: http://web.mit.edu/newsoffice/2012/deflecting-an-asteroid-with-paintballs-1026.html

Advertisements
  1. October 26, 2012 at 3:09 pm

    Reblogged this on Deviant Feather.

  1. No trackbacks yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: