Ursula Bellugi, Pioneer in the World of Sign Language, Dies at 91

Large Hadron Collider Restarts After 3 Years of Upgrades: Particle Collisions at World-Record Energy Levels

Second alien world detected in the planetary system HD 83443 - The newfound extrasolar world is a Jupiter-mass planet orbiting its host on a highly eccentric 22-year orbit

Tigers: The world's largest cats