And We have made the sky a well-protected canopy, still they turn away from its signs
Meaning”
of the sky a well-protected canopy:-
Science Discovered recently that: If the atmosphere did not have an ozone layer, the harmful rays from the SUN would not be filtered and life in the world would disappear.
OUTER SPACE TEMPERATURE: Our atmosphere acts like a blanket, keeping warm temperatures in. Without the atmosphere, we’d temperature of outer space − 270.45 °C freeze world almost instantly.