[F]inding the Higgs [boson], if it’s truly been found, not only confirms the theory about how particles get mass, but it allows scientists to make new calculations that weren’t possible before the particle’s properties were known.
For example, the mass of the new particle is about 126 billion electron volts, or about 126 times the mass of the proton. If that particle really is the Higgs, its mass turns out to be just about what’s needed to make the universe fundamentally unstable, in a way that would cause it to end catastrophically in the far future.
That’s because the Higgs field is thought to be everywhere, so it affects the vacuum of empty space-time in the universe.
And we probably shouldn’t count on saving ourselves with the inevitable anti-Higgs particle. (“Boson’s mate?”) Instead, we should adopt a stance that will stress us less in the long-ish run:
[T]here’s really no reason to worry about this event either. Wherever it started — if it hasn’t already — it would come at you at the speed of light, meaning it would literally be over before we knew it.
Assuming it started nearby, anyway. If the Big Debang should start at the surface of the sun, though, we’d have eight whole minutes to panic.