That Unacknowledged Asteroid
Imagine if you had spotted an asteroid or comet hurtling toward Earth. Or that you became aware of such via the Interweb. It would be very useful to calculate how the collision will affect you, where you are.
In case that unlikely scenario arises, here’s some software that promises to calculate the harm you face.
Lest you be unsatisfied with a simulation of a massive rock barreling down on us, the Web site also provides data on the aftermath, including the size of the crater, the extent of the fireball, and even the height of the tsunami wave, should the object crash into the ocean.

Really neat web site thanks 🙂 Now, if only we could get NASA or the ESA to provide us with information on any incoming objects to test it with (:^>)