[RayChuang88]

One of the BIG concerns is that both Betelgeuse and Antares--both just over 600 light years away from our Sun--may have gone supernova and we don't know it yet. But if it's a supernova explosion, our Solar System could be showered with a big blast of X-ray and other radiation, which could be lethal to life on the Earth's surface and possibly a couple of hundred feet beneath the ocean surface. In short, it could set back the evolution of life on Earth back to beginning of the Paleozoic era, when only simple multicellular lifeforms existed!

[RadiationRomeo]

“X-Ray doom”

Would the x-rays last just a few weeks?
Would we observe some Betelgeuse preparatory changes or would they arrive without warning?

[Erik Latranyi]

...our Solar System could be showered with a big blast of X-ray and other radiation, which could be lethal to life on the Earth's surface and possibly a couple of hundred feet beneath the ocean surface. In short, it could set back the evolution of life on Earth back to beginning of the Paleozoic era, when only simple multicellular lifeforms existed!

As long as all the liberals are eradicated with us, it is a positive change!

[tlb]

>>> But if it’s a supernova explosion, our Solar System could be showered with a big blast of X-ray and other radiation, which could be lethal to life on the Earth’s surface

No.

Since its rotational axis is not pointed toward the Earth, Betelgeuse’s supernova is unlikely to send a gamma ray burst in the direction of Earth large enough to damage ecosystems.[95] The flash of ultraviolet radiation from the explosion will likely be weaker than the ultraviolet output of the Sun.