Blood moon coming up in a couple of days. More info here Don't Miss The "Blood Moon" Eclipse Later This Month | IFLScience
On the night of September 27 at 10:47 p.m. EDT (September 28, 3:47 a.m. BST), we will be treated to a beautiful "Blood Moon" eclipse. This is more accurately known as a total lunar eclipse and occurs when Earth’s shadow completely covers the Moon, with the Sun behind us in respect to the Moon.
During the event, the particular refraction of sunlight through Earth’s atmosphere can cause the Moon to appear red. This is because the more of our atmosphere sunlight passes through, the more it shifts towards the red end of the spectrum, just like how a sunrise or sunset appears red. If Earth had no atmosphere, the Moon would appear dark during the eclipse.