The Comforting Certainty of Unanswered Questions
Light was thought to travel through aether like waves on a lakeShutterstock You might know the anecdote. In April 1900, Lord Kelvin, one of the most prominent physicists of the 19th century, stands in the speaker’s well of the Royal Society in London. Surveying the state of scientific knowledge at the dawn of a new […]
Hero Planet, or Plebian?
Far from being romantic heroes, starless planets may be a dime a dozen.