The speed of sound, which is the speed at which a sound wave moves through the air from its source is about 768 miles per hour at sea level. Until after World War II, no aircraft on earth, ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

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The successor to the Blackbird, called the “Son of Blackbird,” will likely first be developed for unmanned use. If ...

New research shows that the speed of sound on Mars varies considerably by location and temperature. The findings could help scientists understand sounds picked up by Martian rovers, as well as make ...

When an object in space appears to be racing at nineteen times the speed of sound, it instantly jumps from routine data point ...

Total solar eclipses are a mind-expanding demonstration of “the right place at the right time”—and for centuries, scientists and enthusiasts have voyaged to get there in the hopes that they might ...

Seven down. Three to go. Boom Supersonic—the developer of a 64-to-80-passenger commercial airliner that flies faster than the speed of sound—last week set speed and altitude records with its XB-1 test ...

Last week, American Airlines flight 106 took off from New York’s John F. Kennedy International Airport with plans to fly around 564 miles per hour en route to London—but it ended up going a lot faster ...