Scientific American13h
The Arecibo Message, Earth’s First Interstellar Transmission, Turns 50
The Arecibo Message as it appears when its 1,679 bits are properly aligned on a grid (left), an annotated illustration ...
Over 5000 Alien Worlds Have Been Discovered Outside Our Solar System
To date, over 5000 exoplanets have been discovered using telescopes on the ground and in space. Credit: NASA/JPL-Caltech ...