Most astronomers believe that we live in
a low-density Universe
in which a mysterious substance known as ‘dark energy’ accounts for 70% of its content, and therefore, pervades everything.
What is outside our universe?
The universe, being all there is, is infinitely big and has no edge, so
there’s no outside to even talk
about. … The current width of the observable universe is about 90 billion light-years. And presumably, beyond that boundary, there’s a bunch of other random stars and galaxies.
What universe are we living in?
Most astronomers believe that we live in
a low-density Universe
in which a mysterious substance known as ‘dark energy’ accounts for 70% of its content, and therefore, pervades everything.
Where in the universe are we?
Well, Earth is located in the universe in
the Virgo Supercluster of galaxies
. A supercluster is a group of galaxies held together by gravity. Within this supercluster we are in a smaller group of galaxies called the Local Group. Earth is in the second largest galaxy of the Local Group – a galaxy called the Milky Way.
What is in the universe?
The Universe is everything we can touch, feel, sense, measure or detect. It
includes living things, planets, stars, galaxies, dust clouds, light, and even time
. Before the birth of the Universe, time, space and matter did not exist. … All we do know is that the visible Universe is at least 93 billion light years across.
Does the universe have an end?
The end result is unknown
; a simple estimation would have all the matter and space-time in the universe collapse into a dimensionless singularity back into how the universe started with the Big Bang, but at these scales unknown quantum effects need to be considered (see Quantum gravity).
How long will universe last?
22 billion years
in the future is the earliest possible end of the Universe in the Big Rip scenario, assuming a model of dark energy with w = −1.5. False vacuum decay may occur in 20 to 30 billion years if Higgs boson field is metastable.
How many universes are there?
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
.
Can we see Edge of universe?
The edge of the Universe, as it appears to us, is unique to our perspective;
we can see back 13.8 billion years in time in all directions
, a situation that depends on the spacetime location of the observer who’s looking at it.
How many dimensions are there?
The world as we know it has
three dimensions of space
—length, width and depth—and one dimension of time. But there’s the mind-bending possibility that many more dimensions exist out there. According to string theory, one of the leading physics model of the last half century, the universe operates with 10 dimensions.
Where is the sun in our galaxy?
The Sun, and everything that orbits it, is located in the Milky Way galaxy. More specifically, our Sun is in
a spiral arm called the Orion Spur that extends outward from the Sagittarius arm
.
Is our Sun the only sun?
Our Sun is a little unusual because it doesn’t have any friends.
It’s just one Sun
surrounded by planets, asteroids, comets, and dwarf planets. But solar systems can have more than one sun.
What is largest star in the universe?
The largest known star in the universe is
UY Scuti
, a hypergiant with a radius around 1,700 times larger than the sun. And it’s not alone in dwarfing Earth’s dominant star.
What happens if you reach the end of the universe?
Dark energy could still evolve
, leading to a Universe that might either recollapse in a Big Crunch, expand forever, or speed up in its acceleration and eventually tear even the fabric of space apart in a catastrophic Big Rip. The different ways dark energy could evolve into the future.
Are humans made of stars?
Stars that go supernova are responsible for creating many of the elements of the periodic table, including those that make up the human body. … ‘It is totally 100% true:
nearly all the elements in the human body were made in a star
and many have come through several supernovas.
Who created universe?
Many religious persons, including many scientists, hold that
God
created the universe and the various processes driving physical and biological evolution and that these processes then resulted in the creation of galaxies, our solar system, and life on Earth.
