​ 4 years after the giant Arecibo Observatory collapsed, we finally know what happened (Image Credit: Space.com) What does the discovery of a binary pulsar in 1974, the discovery of the first exoplanets, and the most powerful message

​ SpaceX’s Dragon Conducts First ISS Boost Test, Pushing NASA Closer to Final Deorbit Mission (Image Credit: Gizmodo-com) At 12:50 p.m. ET today (November 8), NASA and SpaceX monitored the Dragon spacecraft as it successfully demonstrated its ability