27. What Is Our Universe Made Of?
Did you know that everything in the universe that we can see and perceive, makes up only a mere 5% of what’s actually out there? shocking as it sounds, it’s true!
In the past 80 years, we have discovered that the rest of it is made up of a mysterious matter called ‘dark matter’ and ‘dark energy’. We call them so because we’re unable to detect and measure these entities in any way.
The only way we know dark matter exists is by seeing how it binds a galaxy together since the visible matter in galaxies doesn’t have enough gravity for it. Dark energy, on the other hand, is driving the universe to expand faster than the speed of light!