For over 150 years, humans have been trying to communicate with extraterrestrial life. Despite no definitive proof that anyone has tried to call us back, there has been a number of unusual signals and sounds that researchers are still trying to explain. <br />10. The Mystery Roar <br />9. The Chilled Out Sounds of Moon Miranda <br />8. The Eerie Sounds of Jupiter <br />7. Kepler Star Sounds <br />6. Radio Transmission SHGb02+14a <br />5. The Strange Sounds of Saturn <br />4. The X-Ray Signal <br />3. The Unsettling Sound of a Black Hole <br />2. The Parkes Radio Telescope Bursts <br />1. Arecibo Telescope Radio Bursts
