Unknow facts about Universe

The majority of the universe is thought to be made up of dark matter. This is a mysterious substance that doesn't emit or reflect light, making it invisible to us.

It is believed that there are an infinite number of universes. our universe is one of many universes

The Big Bang theory posits that our universe started. billion years ago.

There are billions of galaxies in the universe. Each galaxy contains billions of stars

The Milky Way galaxy is just one of the billions of galaxies in the universe

The average temperature of the universe is - degrees Celsius.

The universe is mostly empty space.

The Sun is just an average star. There are many stars that are much bigger and much more powerful.

As the universe expanded, the energy and matter initially present have become less dense, according to the Big Bang theory.

The moon has no atmosphere, so there is no wind to erode the surface or water to wash away footprints. The footprints of the Apollo astronauts, along with the space prints and rover prints, will be there for millions of years.

The US is larger than the planet Pluto. If you walked around the equator of Pluto, it would be the same distance as walking from London to Denver.