Cook speculated that this phenomenon, which became known as the black-drop effect, was caused by “an atmosphere or dusky cloud round the body of the planet.
Cook speculated that this phenomenon, which became known as the black-drop effect, was caused by “an atmosphere or dusky cloud round the body of the planet.
这个现象后来被称为「黑滴效应」，库克猜测是由「金星周围的大气或尘埃云」造成的。