Why are the colors of the sky at sunrise different at sunset?
Asked by: Jesse Jordan
Dust in the atmosphere can by scattering produce very interesting sky colours. The redness of Mars is due to lots of dust in its atmosphere. At Earth, during the day, activity on the ground stirs up dust into the air, which scatters
the light when we see it at sunset. At night the dust settles, so we see less scattering by
dust in the morning at the sunrise, so different colours in the sky.
Answered by: Paul Hodgkinson, Physics Undergrad. Cambridge University, UK.
'There comes a time when the mind takes a higher plane of knowledge but can never prove how it got there. All great discoveries have involved such a leap. The important thing is not to stop questioning.'