A Strange Radio Signal in The Far Reaches of The Milky Way Is Behaving Like Nothing Else in The Galaxy - ScienceAlert
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Radio telescopes beneath the Milky Way. Astronomers have discovered a mysterious radio source in our galaxy that has been changing for decades. (000ne/E+/Getty Images)
Many things scattered throughout the Milky Way flicker, glow, and pulse in idiosyncratic ways. From the staccato static of a pulsar to the sudden eruption and slow fade of light from a nova, astronomers have a good handle on the various transient changes cosmic objects undergo. It would be a mistake, however, to think the catalog of sidereal shenanigans is complete. And astronomers have now observed an object behaving in ways that no one has ever seen before. It's called VT J1906+0849, located out beyond the Milky Way's outer Norma-Cygnus spiral arm, and changing in blazing radio light. The hinky part? Whatever is powering the object seems to operate on a timescale of decades. "The source," astronomers write in a paper led by Jessie Miller of the California Institute of Technology, "is a distant Galactic synchrotron transient that has remained radio-bright for approximately two decades while exhibiting an evolving spectral turnover frequency and little apparent expansion. "
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