The Hayden Sphere and Humans

Part of Scales of the Universe.

Hayden sphere_HERO AMNH/D. Finnin

If the Hayden Sphere is the size of Meteor Crater, then this model is the relative size of the Hayden Sphere.

The Hayden Sphere is 26.5 meters (87 feet) across. The iron meteorite that formed Meteor Crater was about the same size, and struck Earth at about 70 thousand kilometers per hour.