Since you were interested enough to inquire, I have decided to pass along the following to you. This is in regards to why we can still see the Moon during a total lunar eclipse. And why is it red?
Well, if the Earth had no atmosphere, the Moon would enter
the Earth's broad umbral shadow and then....lights
out! The Moon would simply disappear from view as all
sunlight would be blocked by the opaque Earth. However,
the Earth is surrounded by a thin layer of atmosphere
that acts as a lens that refracts (bends) sunlight toward a focus in the direction of the Moon. Most of the light
is blocked by the Earth, and the Moon becomes
very dim indeed. But those rays from the Sun
that pass through the Earth's atmosphere are bent
towards the Moon, illuminating it faintly. The reason the Moon appears a ruddy or coppery red color has to do with the same reason our Sun appears similarly at sunrise and sunset. Molecules of air, as well as very small solid particulates (called aerosols)
scatter short wavelength (blue) light preferentially (making
our sky blue), leaving mainly longer wavelength (red)
light to pass through. An astronaut standing on the
Moon watching the eclipse of the Sun would see a red
ring of ``sunset'' surrounding the dark Earth.