The great Comet Crater Contest

$0 - B


An Old Friend
Deep Imact

If you slam a chunk of metal into a comet at extremely high speed, will it sink like a stone in snow or blast a sizeable crater out of the surface? The Planetary Society invites you to make your best guess on how big the hole will be when NASA's Deep Impact mission releases an impactor projectile in the path of Comet Tempel 1 for a planned collision on July 4, 2005. The "Great Comet Crater Contest" can be found at

Deep Impact mission facts and figures will help entrants come up with their best educated guess for the diameter of the crater that Deep Impact will create on the surface of Comet Tempel 1. Only ONE contest entry per person is allowed.
Three grand prizes will be awarded for the best guess of the crater's diameter. All entrants who guess within 5% of the correct crater diameter will be entered into drawings for the grand prize. Runner-Up prizes will be awarded to up to 150 additional correct entrants.
Each grand prize will be a custom-made plaque from Ball Aerospace, who built the Deep Impact Spacecraft. The plaque will be made of the same kind of copper material that makes up the heavy mass of the impactor, laser-engraved with the mission logo. The grand prize winners will also each receive a complimentary Planetary Society membership. The runner-up prizes will consist of a certificate and a Deep Impact Spacecraft paper model provided by Ball Aerospace.

Now celebrating its 25th anniversary, The Planetary Society has inspired millions of people to explore other worlds and seek other life. Today, its international membership makes the non governmental Planetary Society the largest space interest group in the world. Carl Sagan, Bruce Murray and Louis Friedman founded The Planetary Society in 1980.

SkwirliNator's guess....80 meters

Oh yeah, My family's names are on the disk that impacts. I even registered the dead!

First Look Inside a Comet
Participation Certificate
Presented to
Michael Fredrick John Smith (rip)
On June 14, 2003
Thank you for your participation in the Deep Impact Discovery Mission to Comet Tempel 1. A compact disc bearing your name will be mounted on the impactor spacecraft that will collide with Tempel 1 making this the first mission ever to look deep inside a comet.​
You are now part of the future discovery of clues about the beginning of our solar system as your name makes a Deep Impact!​
Dr. Edward J. Weiler

Associate Administrator​
NASA Office of Space Science​
Michael F. A'Hearn

Principal Investigator​
Deep Impact Mission​
University of Maryland​

Certificate No. 226965