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"In February 2016, U.S.-based astronomers announced that they had detected gravitational waves, vibrations in the substance of space-time. When they made the detection public, they translated the signal into sound, a "chirp," a sound wave swooping up in frequency, indexing, scientists said, the collision of two black holes 1.3 billion years ago. Drawing"

""It is less about music being scientific and more about the universe being musical.""

"Stars oscillate on a - very - low frequency, which has to be pitched up many times to be heard by us humans. Scientists use the Kepler Space Telescope to measure these oscillations, and by the frequency they can tell the size of the stars. They combine this with the study of planets in the zone around the star where the temperature allows water to be liquid. Will this eventually lead us to the discovery of extraterrestrial life? "

ALMA (Atacama Large Millimeter/submillimeter Array) is a state-of-the-art radio telescope developed and operated by 20 countries and territories in East Asia, Europa and North America in cooperation with the Republic of Chile. Connecting 66 parabola antennas deployed in the Atacama Desert in northern Chile, ALMA works as a giant radio telescope with a diameter comparable to the size of the Yamanote Line. ALMA detects faint radio waves emanated by distant celestial objects to study the origin and evolution of galaxies, stars, and planets. Obtaining a clue to the origin of life is another goal of ALMA. In 2011, ALMA observed radio waves from a dying star "R Sculptoris." The ALMA MUSIC BOX made use of this data, and translated the 70 different radio images onto 70 musical discs.

"If you see and hear sometimes a strong continuous signal that runs for more than a minute or so, that is unlikely to be a meteor echo. VHF radio waves are sometimes affected by an unusual form of ionosphere propagation called "Sporadic E". During this event which can last hours or even days, the radio signal originating from the distant station is reflected by the ionosphere and meteor echoes are impossible to be detected. Sporadic E is specific to summer season in Northern Hemisphere. "

"The recording starts with the patter of a summer squall. Later, a drifting tone like that of a not-quite-tuned-in radio station rises and for a while drowns out the patter. "