Why is the whole environment considered polluted during eclipses?

From: Shivam Saraogi

Hare Krsna prabhuji. What is the Krsna Conscious perspective of eclipse (grahan)? Please explain the importance of pre-eclipse period (sutak) where people consider the whole environment to be polluted and unfit for any spiritual activity.

From: nitasha

why the temples are closed during eclipse?