He is not only one of the most accomplished of the astronauts—he journeyed into space three times, on Gemini 9, Apollo 10, and Apollo ... and reenters Earth's atmosphere. From the book The ...

Using in part the Gemini North telescope, one half of the International Gemini Observatory, partly funded by the U.S.

Astronomers have discovered not one, but four tiny planets orbiting Barnard’s Star, our cosmic neighbor. These planets, each about a fifth the mass of Earth, whip around their host star in just ...