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Our Universe is not silent.. Although space is a vacuum, that does not mean there is no sound in it. Yes, space is a vacuum - so it generally doesn't carry sound waves like air does here on Earth. However, some sounds do exist in outer space, we just can't hear them. Various probes that zoom through the space are capable of capturing radio emissions from astronomical objects. NASA's scientist have designed special instrument known as 'astronomical interferometer' which can record these electromagnetic vibrations, and transfer them into sounds within range of human hearing (20-20,000 Hz). Interesting Facts about our Moon: The Moon's Latin name is Luna. The Moon formed approx. 4.5 billion years ago. Moon is the fifth-largest natural satellite in the Solar System. The moon orbits the Earth at an average speed of 3,700 kilometers an hour. The Moon is in synchronous rotation with Earth - it is always shows Earth the same side. The Moon’s surface is dark. The dark side of the Moon cools to about -169 degrees Ce
