March 16, 2026, was the 100 th anniversary of Robert Goddard’s first flight of a liquid fueled rocket. It reached an altitude of 41 feet. 31 years later, in 1957, Sputnik began a lonely beep as the ...

Lunar eclipses are well-documented throughout human history. The rare and breathtaking phenomena, which occur when the moon passes into the Earth’s shadow and seemingly changes shape, color, or ...