Explore these orbiting pioneers and learn what they've discovered. 3 min read The Hubble Space Telescope was designed to free astronomers of a limitation that has plagued them since the days of ...
They delved into the telescope's guts during long space walks and replaced parts that the original designers never thought they'd need to. Installation of a new power-control unit forced an ...
Brian Greene (Cosmic String Theory) and Astrophysicist Ethan Siegel have collaborated on a National Geographic coffee-table ...