The Hoba meteorite is the largest known meteorite on earth. Found in Africa in 1920 on the Hoba West Farm, near Grootfontein, Namibia, its 50-ton mass convinced government officials to leave it where it fell.

Scientists believe the Earth's atmosphere slowed the meteorite down to the point where it hit the planet at only 200 mph, thereby remaining intact and creating only a small crater.

The iron meteorite is flat on both major surfaces, causing it to have skipped across the top of the atmosphere in much the same way a flat stone skips on water.

The photo below was taken in 1967.