Ever wondered how big the Universe really is? 🔭 We know the Universe is big, but exactly how large is it? And if it has been constantly expanding since the Big Bang, then how big is it now? Bend your mind around the truly massive scale of our cosmos with Dr Becky Smethurst. #YourCosmos | BBC Earth
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Ever wondered how big the Universe really is? 🔭 We know the Universe is big, but exactly how large is it? And if it has been constantly expanding since the Big Bang, then how big is it now? Bend your mind around the truly massive scale of our cosmos with Dr Becky Smethurst. #YourCosmos | BBC Earth
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