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The tail-end of a star smashed into another star.
The exploded jet was so powerful that it could potentially emit more energy in a few seconds than the Sun can.
GRBs are the most energetic explosions scientists know of, and are believed to be responsible for the creation of the heaviest elements in the universe.
This is the first time a short-duration GRB has been captured in millimeter light.
The first time we tried to observe such an event was with the ALMA.
GRBs are hard to capture. Only six have been detected, and only in radio wavelength.
"Afterglows for short bursts are very difficult to come by, so it was amazing to see this event shining so bright," said Fong.
The scientists say that it is a pretty big deal to capture short GRBs at millimeter wavelength.
The first short-duration GRB that we detected in this wavelength, GRB 211106A, is so special because it allows us to measure the opening angle of the jet.
The real rates of short GRBs in our universe need to be compared with the rates of black holes and stars.
A fascinating glimpse into some of the most energetic events in the known universe can be seen with the millimeter data.
The mystery surrounding giant space explosions is solved after decades.
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