Spacecraft traveling beyond solar system detects hum emanating from deep space and last updated 2021-05-12 14:13:45-04 Researchers say that a NASA spacecraft currently traveling beyond the solar system has detected a constant hum emanating from deep space. According to a new research study published Monday, the faint but constant vibrations were recorded by Voyager 1, a spacecraft launched by NASA in 1977 thatâs still operational and sending signals back to Earth. Voyager 1 flew by Jupiter and Saturn in 1979 and 1980, and has continued its journey into the final frontier. In 2012, scientists confirmed that probe had left the heliosphere and entered interstellar space.