Spiraling cloud formations are often visible in satellite images — but at night, as seen above?
Spiraling cloud formations are often visible in satellite images — but at night, as seen above?
Sign up for our weekly newsletter and unlock one more article for free.
View our Privacy Policy
Want more?
Keep reading for as low as $1.99!
Already a subscriber?
Find my Subscription
Save up to 40% off the cover price when you subscribe to Discover magazine.