To an astronaut in orbit around the earth the sky appears?

Question

a- red
b- blue
c- white
d- black

Answer 1

In orbit if they look anywhere but towards the earth, they see black with stars. If they look straight down to earth they see the color of the earth, since you need to be on the opposite end of the sky to see blue from sunlight, they are on the same side as the sun, no refracting. If they look to the edges of the earth it might appear as a whitish hue as they are looking through the air at an angle.

Answer 2

The sky color during the day comes from the reflection of the sun and oceans onto reflecting off the atmosphere

This is why the coloring dissapears when the sun goes down

Because astronauts in orbit are outside the atmosphere they never get to see that reflection or coloring from the sky

Therefore the answer to your question is ... "none of the above"

follow the links to photos to see for yourself

Answer 3

It depends which side of earth he's on, and why he defines 'sky'.
Are we talking about the earth's sky below him, or his sky above him? Depending on that the answer could be any of the four.

Perhaps you need to ask the teacher that set the assignment for clarification?

Answer 4

the celebs do not twinkle in orbit because the mild would not go via the earth's environment. The earth's environment heats in numerous places and so even as in call for human being mild passes via it, apparently to twinkle.

Answer 5

The sky below them is transparent. The sky above them is black.

Answer 6

black