摘要：
During the total solar eclipse on April 8, the moon's shadow will slow down and then speed up again.
The solar eclipse on April 8 with travel at varying speeds. (Image credit: Daisy Dobrijevic/Canva)
When the moon's shadow races across Earth on April 8 during the total solar eclipse, it will travel faster than the speed of sound.
It will sweep across Earth at more than 1,500 miles (2,400 kilometers) per hour on April 8, according to NASA.
However, exactly how fast it will move where you are will depend on where you are.
