Space news: Five cosmic CATACLYSMS which could END LIFE on Earth

Random space encounters:

Earth’s galaxy is full of stars, planets, stellar remnants, and black holes – some of which present a considerable risk to life on Earth.

For example, if any of these enters our Solar System, the object could gravitationally eject the Earth, rapidly wiping-out life on our planet.

Fortunately, the chance of a star coming close enough to any of the planets as our Sun is to Pluto has been calculated at one-in-10,000.

And the chances an object would come as close to a planet as the Sun is to Earth – capable of triggering Earth’s gravitational ejection – is less than one-in-one billion.

But if it happened, Earth would freeze over in short order, and all life would end.

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