What was before the universe?
The initial singularity is a singularity predicted by some models of the Big Bang theory to have existed before the Big Bang and thought to have contained all the energy and spacetime of the Universe.
Which is the biggest thing in the universe?
The biggest supercluster known in the universe is the Hercules-Corona Borealis Great Wall. It was first reported in 2013 and has been studied several times. It’s so big that light takes about 10 billion years to move across the structure. For perspective, the universe is only 13.8 billion years old.
Why is the universe flat?
In a universe with zero curvature, the local geometry is flat. With dark energy, the expansion rate of the universe initially slows down, due to the effect of gravity, but eventually increases. The ultimate fate of the universe is the same as that of an open universe. A flat universe can have zero total energy.
How many known planets are there?
Can planets have 2 suns?
This diagram compares our own solar system to Kepler-47, a double-star system containing two planets, one orbiting in the so-called “habitable zone.” This is the sweet spot in a planetary system where liquid water might exist on the surface of a planet.
How many dimensions are there on Earth?
Do multiple universes exist?
As it stands, the multiverse exists outside our current scientific understanding of reality. Theoretical physics suggests a multiverse is a hypothetical grouping of multiple universes.
How many suns are in the universe?
That’s just how many we’ve found so far. There are likely to be many more planetary systems out there waiting to be discovered! Our Sun is just one of about 200 billion stars in our galaxy. That gives scientists plenty of places to hunt for exoplanets, or planets outside our solar system.
What are the hypotheses explaining the origin of the universe?
The Big Bang theory is universally accepted by those who do research on the development of the universe, galaxies, and stars as the cause of the origin of the universe. The Big Bang theory says that the universe has developed by expanding from a hot dense state with everything exploding away from everything else.
How many universes are there in the world?
There are still some scientists who would say, hogwash. The only meaningful answer to the question of how many universes there are is one, only one universe.
Will our universe end?
If the Universe holds enough matter, including dark matter, the combined gravitational attraction of everything will gradually halt this expansion and precipitate the ultimate collapse. Over time, galaxies, then individual stars, will smash into each other more frequently, killing off any life on nearby planets.