Titanic Explosion in Andromeda –A Prelude?

    So far, we have had only close calls from gamma ray explosions so large, scientists have suggested, that if they occurred within our solar neighborhood (less than 1,000 light years) they could potentially trigger mass extinctions on Earth.  Some 440 million years ago, reports Nature, a nearby gamma-ray burst may have extinguished much … Continue reading Titanic Explosion in Andromeda –A Prelude?