发射激光以驯服天空
2021年02月10日 Firing Lasers to Tame the Sky Image Credit & Copyright: Juan Carlos Muñoz / ESO; Text: Juan Carlos Muñoz Explanation: Why do stars twinkle? Our atmosphere is to blame as pockets of slightly off-temperature air, in constant motion, distort the light paths from distant astronomical objects. Atmospheric turbulence is a problem for astronomers b...