As you approach the speed of light, space and time begin to warp in ways that defy everyday logic. According to Einstein’s theory of relativity, time slows down dramatically for fast-moving objects - ...

light waves do not need a medium to pass through, they can travel through a vacuum. Light from the Sun reaches Earth through the vacuum of space. The speed of light in air is very close to 300 000 ...

Chinese scientists have made a breakthrough in submarine detection by creating a radio-emitting source in the sky using high-energy microwave synthesis technology. This virtual signal source, which ...