neocatastrophism
... that neocatastrophism is the theory that life-exterminating events such as gamma-ray bursts in the Milky Way have stopped the advent of complex life elsewhere in its Galactic Habitable Zone?
... that <b id="mwCWU"><a href="./Neocatastrophism" id="mwCWY" rel="mw:WikiLink" title="Neocatastrophism">neocatastrophism</a></b> is the theory that life-exterminating events such as <a href="./Gamma-ray_burst" id="mwCWc" rel="mw:WikiLink" title="Gamma-ray burst">gamma-ray bursts</a> <i id="mwCWg">(pictured)</i> in the <a href="./Milky_Way" id="mwCWk" rel="mw:WikiLink" title="Milky Way">Milky Way</a> have stopped the advent of complex <a href="./Life" id="mwCWo" rel="mw:WikiLink" title="Life">life</a> elsewhere in its <a class="mw-redirect" href="./Galactic_Habitable_Zone" id="mwCWs" rel="mw:WikiLink" title="Galactic Habitable Zone">Galactic Habitable Zone</a>?