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I see them in the streets and in the subway, at dollar stores, hospital rooms, and parties. I see them silently dangling from electrical cables and tethered to branches of trees. Balloons are ghost-like entities floating through the cracks of places and memories. They are part of our rituals of loss, celebration and apology. Yet, they are also part of larger systems, weather sciences, warfare and surveillance technologies, colonialist forces and the casual UFO conspiracy theory. For a child, the ephemeral life of the balloon contrasts with the joy of its bright colors and squeaky sounds. Psychologists encourage the use of the balloon as an analogy for death, while astronomers use it as a representation for the cosmological inflation of the universe. In between metaphors of beginning and end, the balloon enables dialogues about air, breath, levity, and vibration.

"I wondered why an artist like Brian would be interested in matters of spacetime and relativity. The more I got to know Brian, I knew it wasn't a time filler, or for his health. What I was about to discover during my two years in London was that Brian was something I've come to call a "sound cosmologist." He was investigating the structure of the universe, not inspired by music, but with music."

"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. "

"A team of scientists announced on Thursday that they had heard and recorded the sound of two black holes colliding a billion light-years away, a fleeting chirp that fulfilled the last prediction of Einstein's general theory of relativity."

NASA's Jupiter-bound Juno spacecraft has entered the planet's magnetosphere, where the movement of particles in space is controlled by what's going on inside Jupiter. "We've just crossed the boundary into Jupiter's home turf," said Juno Principal Investigator Scott Bolton of Southwest Research Institute, San Antonio. "We're closing in fast on the planet itself and already gaining valuable data."