# Why are there no gamma-ray bursts detected in our galaxy?

I found from Wikipedia and other sites that there are no GRBs detected in the Milky Way. Can someone give a feasible reason for that? Why are there no GRBs detected in the Milky Way galaxy?

• - We are still alive. - The aliens who use them as close to lightspeed "starship" launchers have decided that we should be left alone yet a while. – Russell McMahon Aug 18 at 7:21
• Pretty certain this is the "Law of Big Numbers" - GRBs are rare, we live in 1 galaxy, and there are near infinite number of galaxies we don't live in. Odds are very strong then that we won't see them in our Galaxy. – Michael Dorgan Aug 18 at 21:30
• This question seems to be based on a false premise: that there should be frequent GRBs in our galaxy. Could you explain why you think this? – Oscar Bravo Aug 19 at 8:17
• Seems to be a pretty reasonable question to me. Voting to leave open. – antispinwards Aug 19 at 10:21
• @OscarBravo, yes I believe that behind this should be a reason but the source of GRBs still a mystery, if we know that then we confidently enough answered that, – sundar45 Aug 22 at 5:08

We know of many extragalactic GRBs for several reasons. It helps that we can observe large numbers of galaxies (thanks to how bright the bursts are), and if we could look at millions of Milky Way-like galaxies, it wouldn't be surprising if we could detect $$\sim$$1 event per year. (There's also the advantage that star formation peaked at a redshift $$z\sim2$$, and so high-redshift objects would be more likely to produce more GRBs!)