
The science community has a crisis on its hands. Some anarchist physicists recently started kicking the tires on the Standard Model and they figured out the universe is expanding faster than it should be. This means the worst possible outcome imaginable has come to pass: scientists got some math wrong.
Either that, or the universe is ripping itself apart. Probably both. But, thatâs hardly notable. If the universe started with a Big Bang, itâd be silly to think it was going to end with a âMild Settling.â In fact, chances are weâre about to start discussing the Big Rip (actual theory) soon enough if physicists canât sort out this Hubble Constant crap.
Hereâs some background for those of you who arenât science groupies. The HubbleâLemaĂźtre Law, named for Edwin Hubble (yes, the guy they named the telescope after) and usually referred to as the Hubble Constant, is a number that describes how quickly the universe is expanding.
Astronomers in the 18th century figured out that heavenly bodies appeared to be moving away from the Earth in every direction. Since weâre certain our planet isnât the center of the universe, we can assume the stars and planets themselves arenât moving. Itâs actually the space between the objects in, uh, space thatâs changing. Dark matter, or something else (scientists legitimately donât know), is filling up the universe and causing it to expand.
Hubbleâs credited with being among those who sorted out the rate of expansion. Itâs 67.4 kilometers/second per megaparsec. Knowing this number gives scientists the ability to run simulations to discern what the universe will look like in billions of years or how it looked billions of years ago. Unfortunately, doing this with just Hubbleâs Constant is a lot like trying to predict global storm patterns in perpetuity by looking at a single drop of water in a laboratory. Itâs really hard.
To make things worse physicists arenât sure whether Hubbleâs Constant is accurate anymore. Independent studies show that specific objects, when measured with Hubbleâs Constant in mind, donât appear to be exactly where they should be. In other words, either someone moved the stars, Hubbleâs Constant needs an update, some scientists screwed up some math, or the rate at which the universe is expanding has accelerated.
If the latter is true then itâs a near certainty that our universe will eventually rip itself apart. Perhaps the dark matter will reach critical intrusion and force the remaining white matter into a dense ball of pure energy that explodes in some kind of big bang forcing matter to expand into a tiny, baby universe thatâll eventually expand until it rips itself apart. Itâs turtles all the way down, in other words.
Itâs probably more likely that technological limitations and the sheer difficulty of accounting for all the possible variables when dealing with math at a literally astronomical scale have made it difficult to pinpoint the exact reason for the differences between measurements by separate research teams.
It could be years before we sort out the actual rate of the universeâs expansion. Scientists might prove Hubbleâs Constant again, or perhaps weâll find that all the numbers are correct and weâll need some exotic new physics to account for these truths. In any case, itâs still just as likely that the universe is going to rip itself apart eventually. Happy Monday.
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