Less than 5% of the universe is solid matter, with 68% dark energy and 27% dark matter. Dark energy expands the universe, while dark matter’s gravity can be measured. The sun makes up 99% of the solar system, and it would take 800 years to reach Pluto.
The vast majority of the universe is made up of dark energy and dark matter: less than 5% of the matter in space is solid, such as stars or galaxies. Commonly accepted proportions of the contents in space are about 68% dark energy, 27% dark matter, and 5% observable solid matter. Dark energy refers to an unknown form of energy thought to be responsible for expanding the universe and separating solid matter over long periods of time, while dark matter is matter that cannot be seen because it does not interact with light but is thought to exist due to the fact that its gravitational properties can be measured.
More about the space:
Footprints left on the Moon after the first astronauts stepped on it in 1969 are predicted to remain for at least 100 million years.
The sun is so dense that it makes up about 99% of the entire solar system. The amount of energy that reaches Earth from the sun in one hour is less than the planet actually uses in an entire year.
It would take more than 800 years to reach Pluto if air travel was possible.
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