No.11045739 ViewReplyOriginalReport
We just found out that the milky way's galactic core is more active than we thought and sent out a HUGE BLAST of gamma and X-rays 3.5 +- 1 mya lasting around 300,000 years. Could this solve the fermi paradox?
https://astro3d.org.au/not-long-ago-the-centre-of-the-milky-way-exploded/
http://www.physics.usyd.edu.au/~jbh/share/Papers/JBH-Ionization-Cones-Oct19.pdf