I understand this is maybe the first time a solo orca has killed a great white but the article made it seem like they just started doing this. Hasn’t this gone on for awhile now
At any moment, without warning, a gamma ray burst could wipe out all life on Earth. Gamma ray bursts — or GRBs — are bursts of high energy traveling through space that usually come from a star exploding into a supernova. Our planet has been hit by GRBs before — in fact, one hit us last year , and it was strong enough to affect Earth's ionosphere and set off lightning detectors in India. That GRB had traveled to us from two billion light-years away and still had enough energy to cause disturbances, so you can imagine what a GRB from our own galaxy could do to us. If a strong enough GRB hit Earth, it would essentially vaporize the atmosphere and instantly wipe out life on half the planet. The other half of the planet that wasn't directly hit would probably be fried pretty quickly from the sun's rays due to the lack of atmosphere, but it would take long enough that the unfortunate souls living on that side of the planet would know what was happening. NASA/AFP via Getty Images