There are many unsolved mysteries of the Universe, many of which stem from physics. It’s not that scientists haven’t tried to unravel these cosmic conundrums, it’s just proved very difficult in certain cases. Here’s a few that have scientists tying themselves in knots over:
1. What are dark matter and dark energy? This is one question that burns in the minds of many physicists as although we all know these things exist we are yet to be able to prove the existence of this invisible stuff. Only technology will allow us to record these substances for real.
2. Are there parallel universes? This comes under the multiverse theory and has been around for quite some time. Some of those that are against the idea of the parallel universe say that following the Big Bang inflation would have slowed down to a point where if there were multiverse they wouldn’t be expanding at the same rate as our own. This would then throw the whole idea of there being a truly parallel universe.
3. Why is there more matter than antimatter? This puzzles scientists because in theory there should be equal amounts of matter and antimatter following the Big Bang, but there isn’t. While matter can be found all around us, there’s hardly any antimatter at all, but still, scientists don’t know why.
4. How big is the universe? The answer to this question will differ depending on who you ask and what part you’re referring to. The observable universe is estimated to be around 13.8 billion years old, but with the universe constantly expanding how accurate can that answer ever really be?
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