Satvik Knowledge World

12/08/2026

“Don’t wait for the perfect moment; make your moment perfect.”

30/07/2026

22/07/2026

Why Is the Sky Black in Space? 🌌

The sky looks blue on Earth because our atmosphere scatters sunlight.
Tiny air molecules spread blue light in all directions.
This effect is called Rayleigh scattering.
In space, there is almost no atmosphere.
Without air, sunlight cannot scatter.
Light travels in a straight line through space.
So, unless you look directly at the Sun, the sky appears black.
Even during daytime in space, astronauts see a black sky.
The stars become visible against this dark background.
That's why space always looks dark and black.