Chuck Yeager broke the sound barrier on October 14, 1947 — flying the Bell X-1 to Mach 1.07.

The fossil record is incomplete but still informative.

Fact #743 · General

Memories are reconstructed each time you recall them.

Fact #2134 · General

In 1971, a hijacker known as D.B. Cooper parachuted from a plane and was never conclusively identified.

Fact #784 · General

The first Paralympic Games were held in 1960.

Fact #935 · General

Petra in Jordan was carved into rose-colored rock cliffs.

Fact #1635 · General

In 1978, thousands of people gathered to watch a man attempt to fly using homemade wings.

Fact #779 · General

There are unanswered questions.

Fact #2320 · General

Water can erode rock over long periods of time.

Fact #194 · General