NASA’s Hubble Space Telescope captured a cameo appearance of the tiny moon Phobos on its trek around the Red Planet. This composite image, from NASA Galileo and Mars Global Survey orbiters, of Earth ...

These are visible basically because they have height and cast shadows. Albedo features are different in that they are visible because they reflect light in different ways. One of the weirdest is ...

For that, we have to talk about the term “albedo.” Albedo is the reflection of sunlight off a surface. Certain surfaces have higher albedo numbers than others. Fresh, new-fallen snow can reach ...