How did our universe get the right mix of ingredients? Perhaps we won the cosmic lottery. Or, indeed, anything that could be called alive. If electrons had been too heavy, or the force that holds atomic nuclei together had been too weak, the stuff of the universe wouldn’t even stick together, let alone make something as marvellous as a living cell. Physicists have discovered that the ability of our universe’s building blocks to make life forms is extremely rare. Your body is astounding: energy-gathering, information-processing, mini-machine building, self-repairing. – are able to make amazing things, such as human life. The basic building blocks of our universe – protons and neutrons (and their quarks), electrons, light, etc. The Marvel multiverse might seem wild, but from a scientific perspective, it’s actually too tame. Credit: Marvel Studios Changing the laws of nature Strange in the Multiverse of Madness, the multiverse is breached by various magical spells and special abilities. So, almost certainly, if Another-Earth is out there somewhere, it’s unimaginably far away, even for an astronomer. And while more exotic ways to travel around the universe are scientifically possible – wormholes, for example – we don’t know how to make them, the universe doesn’t seem to make them naturally, and there is no reason to think they’d connect us to Another-Earth rather than some random part of empty space. Strange needs to use magic for this.Īccording to Albert Einstein, we can’t travel through space faster than light. The fiction of the Marvel multiverse stems from the ability to travel between these other earths. With enough space and enough planets, any possibility becomes likely. If there is more space out there, full of galaxies, stars, and planets, then there are more and more chances for Another-Earth to exist. We can see billions of light years into space, but we don’t know how much more space is out there, beyond what we can see. So, which of these ideas has Marvel based on science, and which ones are just pure fiction?Ĭould there be other Earths? Could there be other people out there, who look a lot like us, on a planet that looks like ours? Scientifically, it’s possible, because we don’t know how big our universe actually is. In Doctor Strange in the Multiverse of Madness (in cinemas now), the universe-on-universe buffoonery threatens a “desecration of reality.”
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