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).
Is the universe infinite?
Does the cosmos go on forever, or is outer space finite? … The observable universe is still huge, but it has limits. That’s because we know
the universe isn’t infinitely old
— we know the Big Bang occurred some 13.8 billion years ago. That means that light has had “only” 13.8 billion years to travel.
What is at the end of the universe?
Astronomers once thought the universe could collapse in a Big Crunch. Now most agree it will end with
a Big Freeze
. … Trillions of years in the future, long after Earth is destroyed, the universe will drift apart until galaxy and star formation ceases.
What year will the universe end?
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.
Is there an edge of the universe?
The Universe has many edges
: the edge of transparency, the edge of stars and galaxies, the edge of neutral atoms, and the edge of our cosmic horizon from the Big Bang itself. We can look as far away as our telescopes can take us, but there will always be a fundamental limit.
What is the biggest thing in the universe?
The largest known ‘object’ in the Universe is
the Hercules-Corona Borealis Great Wall
. This is a ‘galactic filament’, a vast cluster of galaxies bound together by gravity, and it’s estimated to be about 10 billion light-years across!
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
.
How cold is space?
Far outside our solar system and out past the distant reachers of our galaxy—in the vast nothingness of space—the distance between gas and dust particles grows, limiting their ability to transfer heat. Temperatures in these vacuous regions can plummet to
about -455 degrees Fahrenheit (2.7 kelvin)
.
How infinite is space?
Because space isn’t curved they will never meet or drift away from each other.
A flat universe could be infinite
: imagine a 2D piece of paper that stretches out forever. But it could also be finite: imagine taking a piece of paper, making a cylinder and joining the ends to make a torus (doughnut) shape.
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.
What will happen in 100 trillion years?
And so, in about 100 trillion years from now, every star in the Universe, large and small, will be
a black dwarf
. An inert chunk of matter with the mass of a star, but at the background temperature of the Universe. So now we have a Universe with no stars, only cold black dwarfs. … The Universe will be completely dark.
Does time have an end?
According to Einstein’s General Relativity, which is our best current description of space and time, the only place where time – and also space –
ends is in a so-called singularity
. This involves gravitational forces becoming so intense that space and time lose all meaning.
Is it possible to go back in time?
Time travel to the
past is theoretically possible in
certain general relativity spacetime geometries that permit traveling faster than the speed of light, such as cosmic strings, traversable wormholes, and Alcubierre drives.
How long would it take to reach the edge of the universe?
It’s Space Day, but traveling the vast entity that is space would take far longer than a single day. The nearest galaxy: 749,000,000 (that’s 749 million) years. The end of the known universe:
225,000,000,000,000 years (that’s 225 trillion) years
.
What’s bigger than the universe?
The universe is much bigger than it looks, according to a study of the latest observations.
Is the universe bigger than the Galaxy?
Galaxies come in many sizes. The
Milky Way is big
, but some galaxies, like our Andromeda Galaxy neighbor, are much larger. The universe is all of the galaxies – billions of them! … Our Milky Way Galaxy is one among the billions of galaxies in our Universe.
