Microscopic switches that route light signals between computer chips like tiny traffic conductors could help make faster, more efficient electronics. Light waves can carry information more easily than ...

What good is a powerful computer if you can't read its output? Or readily reprogram it to do different jobs? People who design quantum computers face these challenges, and a new device may make them ...

Editor's Note: This article has been updated to reflect new information in which Hubble has returned to science operations. The Hubble Space Telescope has powered on once again! NASA was able to ...