IntroductionSolar eclipses were interpreted throughout much of history as bad news for the sovereign — an ominous sign for their personal health or that...
In August 1998, 700 people came to Boulder, Colorado to attend the founding convention of the Mars Society. The group’s cofounder and president, Robert...
IntroductionAristotle argued almost 2,400 years ago that a perfect vacuum could never exist. Today, the concept of nothingness figures at least implicitly into almost...
IntroductionThe jellyfish that move through the seas by gently pulsing their saclike bodies may not seem to hold many secrets that would interest human...
Life on Earth owes its existence to photosynthesis—a process which is 2.3 billion years old. This immensely fascinating (and still not fully understood) reaction...
IntroductionSailors have spun yarns for centuries about gigantic rogue waves that could suddenly come out of nowhere to capsize the ships of unwary mariners....