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Solar Rain

by Ali Berger

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Chromosphere 04:32
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Magnetic 05:32
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Heating Loop 04:18
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Wisdom Rain 06:32
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about

Ali Berger explores a science fiction narrative based on the rain-like loops of plasma that form in the Sun's corona after eruptions of solar material. These loops emerge from the Sun's surface, the plasma tracing an arc along existing magnetic fields, forming and dissipating within a day or less. If this solar rain were a living entity, what would that existence be like? What could we learn from it, about impermanence, acceptance, harmony and the law of nature?

Using the familiar tools of techno music--a 909 clone and various FM and subtractive synthesizers--this album takes listeners on a vivid and imaginative trip to witness and reflect on stellar phenomena in the sonic realm.


This project is in no way affiliated with or endorsed by NASA.

image + video from NASA's Solar Dynamics Observatory:
sdo.gsfc.nasa.gov/gallery/main/item/410

How It Rains On The Sun
excerpted from www.nasa.gov/feature/goddard/2019/unexpected-rain-on-sun-links-two-solar-mysteries

Observed through the high-resolution telescopes mounted on NASA’s SDO spacecraft, the Sun – a hot ball of plasma, teeming with magnetic field lines traced by giant, fiery loops — seems to have few physical similarities with Earth. But our home planet provides a few useful guides in parsing the Sun’s chaotic tumult: among them, rain.

On Earth, rain is just one part of the larger water cycle, an endless tug-of-war between the push of heat and pull of gravity. It begins when liquid water, pooled on the planet’s surface in oceans, lakes, or streams, is heated by the Sun. Some of it evaporates and rises into the atmosphere, where it cools and condenses into clouds. Eventually, those clouds become heavy enough that gravity’s pull becomes irresistible and the water falls back to Earth as rain, before the process starts anew.

On the Sun, Mason said, coronal rain works similarly, “but instead of 60-degree water you’re dealing with a million-degree plasma.” Plasma, an electrically-charged gas, doesn’t pool like water, but instead traces the magnetic loops that emerge from the Sun’s surface like a rollercoaster on tracks. At the loop’s foot points, where it attaches to the Sun’s surface, the plasma is superheated from a few thousand to over 1.8 million degrees Fahrenheit. It then expands up the loop and gathers at its peak, far from the heat source. As the plasma cools, it condenses and gravity lures it down the loop’s legs as coronal rain.

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released November 4, 2022

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TRACKLAND / Ali Berger Pittsburgh, Pennsylvania

Trackland is the home of Ali Berger, a producer, improviser and DJ currently based in Pittsburgh, PA.

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