During daylight, the sky appears to be blue
The sky (or celestial dome) is everything that lies above the surface of the Earth, including the atmosphere and outer space. In the field of astronomy, the sky is also called the celestial sphere. This is viewed from Earth’s surface as an abstract dome on ...
Eye has not seen… Ear has not heard
We went to Argentina and saw a blind mans eyes opened It was pretty incredible — so we all celebrated with a selfie ...
No one knows exactly how big space is
From the perspective of an Earthling, outer space is a zone that occurs about 100 kilometers (60 miles) above the planet, where there is no appreciable air to breathe or to scatter light. In that area, blue gives way to black because oxygen molecules are ...