High-Energy Astrophysical Activity Remains a Mystery

A fast radio burst (FRB) is “a transient radio pulse of length ranging from a fraction of a millisecond to a few milliseconds” from high-energy astrophysical activity of unknown origins. The first FRB was discovered in 2007 (by Duncan Lorimer and his student David Narkevic) but there have been many since then—and one especially active burst pulsates every 16.35 days. Recently, another highly active FRB, …