LINEAR survey of MIT's Lincoln Laboratories.

Ian reported

Venus Express

Hiroshima-sized atom bombs.

The Scale and Frequency Guide to Earth impacting Space Debris 

Microscopic objects

Pebble to baseball sized objects

Dining room table sized objects

Large building sized objects:

Tunguska, Siberia fireball of 1908

Football-field sized objects

Small town sized objects:

City-sized objects


Large state-sized asteroids

“2012” soothsayers

Photo Courtesy: Howard Edin