Introduction to the Universe

 

The Hubble Telescope (one of the best) allows us to look back billions of years It takes 225 million years for our Sun to travel around the Milky Way galaxy A year on Venus is shorter than a day Neutron stars rotate the fastest of all known objects in the universe, even rockets One tablespoon of neutron star weighs about...

It is not known how much it weighs or how big the Universe is, there are data that only through a miracle or a genius we could find out. The universe contains atoms, the whole universe is an atom, there are so many atoms, inact there is no number. for them. It contains stellar and space dust, nebulae, stars,...

According to the Big Bang theory, space and time came together, from what? We don't know yet. So the universe was formed with the Big Bang theory, but we are not yet able to know exactly what it was before. For the first time in the Universe, a kind of semi-atom formed, then atoms, then cosmic dust, then nebula, then...