The speed of light is in fact an assumption. The truth is that we have never measured the speed of light in one direction experimentally. The speed of light in a vacuum is said to be 299,792 kilometers per second....
Enceladus is Saturn's sixth largest moon, only one-seventh the diameter of our Moon. Perhaps the mysterious sphere in the solar system where extraterrestrial life is most likely! In 1789, British astronomer William Herschel was the first to discover Enceladus, one...
Recent Comments