It’s an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the edge of our solar system, evading all our efforts to spot it. Some astronomers say the strange, clustered orbits of icy rocks beyond Neptune indicate that something big is out there, which they have […]
NASA releases stunning photos of planets, far-flung galaxies to mark Hubble anniversary
On April 24, 1990, all 24,000 pounds of the Hubble Space Telescope were tucked away inside the Discovery space shuttle when it launched into space. Thirty-five years later, NASA says Hubble has proven to have “opened a new window to the universe,” with more than 1.6 million observations to date filled with compelling and surprising […]