Question

How does the outer sky appear to an astronaut in space?

Hint:

Think about what causes the blue colour of Earth's sky and whether that exists in space.

Answer 1

Step 1: The correct answer is black.
Step 2: The sky looks blue from Earth because sunlight scatters off molecules in the atmosphere, and blue light scatters the most.
Step 3: In space there is no atmosphere to scatter light, so there is nothing to spread the sunlight around and colour the background.
Step 4: This is why astronauts see a black sky with sharp, bright stars and the sun, even during the daytime side of an orbit.