The Milky Way’s Radio “Heat Haze” Finally Comes Into View(Physics)By Steve Raines PhD
Astronomers have caught the Milky Way mid‑hiccup—not with a dramatic explosion, but with something far subtler: the faint, wiggling distortion of radio waves as they pass through turbulent pockets of gas between the stars. For the first time, researchers have directly detected how interstellar turbulence warps light across our galaxy, revealing a complex, structured “screen” of chaotic gas that acts like a cosmic heat haze. The discovery, published in the *Astrophysical Journal Letters*, is a milestone in understanding how the space between stars scatters and sculpts the signals we receive from distant quasars, black holes, and other bright radio sources. It also offers a powerful new tool for producing sharper images of the most compact objects in the universe, including the shadow of our own Galaxy’s central black hole. Starlight’s Stealthy Distorter Most people think of the disk of the Milky Way as a band of stars and dust. But in reality, the spaces between those s...
