Be a Planetary Defender
If we work together—if we support smart science and dedicated research—then I believe you and I can truly make an asteroid strike the only avoidable natural disaster.
15th of this year, an asteroid exploded over Chelyabinsk, Russia, and a second
one (2012 DA14) passed within range of our communications satellites. Two such
close passes prove that we live in a cosmic shooting gallery, and must take
very seriously the question of asteroid deflection.
Lasers show tremendous potential for deflecting asteroids. Let's continue
to support the research!
to Planetary Society members like you supporting our Laser Bees experiment to
test asteroid deflection, this is what we now know:
If you put a cube
of solid rock in a vacuum chamber and subject it to a ten-minute focused beam
of light from a laser, it will:
• Reach a spot
temperature upwards of 7,000o F;
• Have small
explosive events from the surface, ejecting fragments of rock;
Create a jet plume of vaporized rock from below the surface in a hemispherical
cone of ablated matter with impressive measurable force.
Experiments completed to date indicate that first estimates were, if
anything, too conservative and that lasers show tremendous potential for
deflecting asteroids. I recommend we continue to support their research. I hope
that you do, too...
with The Planetary Society again and contribute to Laser Bees research. We need
-Bill Nye, CEO The Planetary Society