They had found the cool afterglow of the big bang: the cosmic microwave background radiation.
They had found the cool afterglow of the big bang: the cosmic microwave background radiation.
他们发现的是大霹雳冷却后的馀晖：宇宙微波背景辐射。
They had found the cool afterglow of the big bang: the cosmic microwave background radiation.
他们发现的是大霹雳冷却后的馀晖：宇宙微波背景辐射。