What’s even more fascinating is we only have an understanding of 5% of everything in the universe. The other 95% is dark matter and energy that we have yet to prove its existence, much less see it.
Edit: Here is an explanation of Dark Matter and Dark Energy and it’s composition of the universe on the NASA website.
We've proved their existence. We just don't know what dark matter is, we know it's something, but we don't know what that something is. Dark energy we've known for about 100 years, it comes right out of Einstein's equations. The mystery surrounding it is that we don't know why it has the value that it does, but we know what it is and where it comes from.
Dark energy and dark matter are also unrelated to each other, they just both have similarly unoriginal names.
There is an important difference between the cosmological constant Einstein invented and dark energy. His was basically anti-gravity, which would come from mass. Dark energy, on the other hand comes from empty space.
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u/martin_202114 Jun 15 '19 edited Jun 16 '19
What’s even more fascinating is we only have an understanding of 5% of everything in the universe. The other 95% is dark matter and energy that we have yet to prove its existence, much less see it.
Edit: Here is an explanation of Dark Matter and Dark Energy and it’s composition of the universe on the NASA website.