Deadlier With Time: Ancient DNA Reveals a Chicken Virus’ Evolutionary Leap

Herding elk: Drone use takes off in Wyoming wildlife management. Wardens and biologists are finding ever-expanding uses for unmanned aircraft, which are being deployed across the state and saving on time and resources.

Space surgery: Doctors on ground operate robot on ISS for first time

Water detected on surface of asteroids for first time, thanks to defunct NASA mission