Where are these Fast Radio Bursts coming from, and from whom?

Here is a story linked to by these words from Instapundit:

I’M NOT SAYING THAT IT’S ALIENS. BUT IT’S ALIENS.

From the website Science Alert,

Back in March, scientists detected 10 powerful bursts of radio signals coming from the same location in space. And now researchers have just picked up six more of the signals seemingly emanating from the same region, far beyond our Milky Way. These fast radio bursts (FRB) are some of the most elusive and explosive signals ever detected from space - they only last milliseconds, but in that short period of time, they generate as much energy as the Sun in an entire day. But despite how powerful they are, scientists still aren't sure what causes them.

CSIRO/Harvard/Swinburne Astronomy Productions
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