Image courtesy of Seth Shostak/SETI Institute
Joel Kontinen
Astronomers have spotted a set of 35 mysterious flashes of radio waves from space that seem to show a strange phenomenon of decreasing frequency that has never been seen before.
"Short, powerful bursts of radio waves from space are getting stranger and
stranger. Astronomers have spotted 35 of these bursts from a single object with
a pattern unlike any we have seen before."
Sofia Sheikh at
the SETI Institute in California and her colleagues observed this object,
a fast radio
burst (FRB) called FRB 20220912A, over the course of 541 hours
of observation with the Allen Telescope Array in California. In each of the
bursts from this FRB, they found a phenomenon called the “sad trombone”.
Source:
Leah Crane 2023. Radio bursts from space are exhibiting a strange ‘sad trombone’ effect | New Scientist. 28 December.
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