The mysterious knock on the surface of the spacecraft that has caused veteran astronauts to panic is not caused by aliens but the result of a change in air pressure.
Mysterious sound - cry
This radio, known by its name
Sounds like
Named The Hum, the oddly low low frequency sound is only heard by 2% of the population in isolated places.
People heard strange moans mingling with a low sound, occasionally interfering with a screeching cry like a violent storm.
New conversation records from the Apollo 10 space exploration mission of the US Aerospace Agency (NASA) have revealed that astronauts have heard a
The vast universe with mysterious bodies has so far contained many difficult questions to answer, making the scientific community hard to find the answer. According to Nature's