The Big Bang theory says that the universe came into being from a single, unimaginably hot and dense point (aka, a singularity)
more than 13 billion years ago
. It didn’t occur in an already existing space. Rather, it initiated the expansion—and cooling—of space itself.
How was space created?
Around 13.8 billion years ago, all the matter in the Universe emerged from a single, minute point, or singularity, in
a violent burst
. This expanded at an astonishingly high rate and temperature, doubling in size every 10-34 seconds, creating space as it rapidly inflated.
How did space originate nothing?
The Universe as we observe it today began
with the hot Big Bang
: an early hot, dense, uniform, … … Perhaps, according to cosmic inflation — our leading theory of the Universe’s pre-Big Bang origins — it really did come from nothing.
Where did space begin?
Earth ends and outer space starts at the Kármán line, some 62 miles (100 kilometers) above the planet’s surface.
What started the universe?
The Big Bang
was the moment 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded. Most astronomers use the Big Bang theory to explain how the universe began. But what caused this explosion in the first place is still a mystery.
Who created the God?
Responses. Defenders of religion have countered that the question is improper: We ask, “If all things have a creator, then who created God?” Actually, only created things have a creator, so it’s improper to lump God with his creation.
God
has revealed himself to us in the Bible as having always existed.
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).
Does empty space exist?
And as in the rest of physics, its nature has turned out to be mind-bendingly weird:
Empty space is not really empty
because nothing contains something, seething with energy and particles that flit into and out of existence. Physicists have known that much for decades, ever since the birth of quantum mechanics.
Is space really a vacuum?
Space is
an almost perfect vacuum
, full of cosmic voids. … By definition, a vacuum is devoid of matter. Space is almost an absolute vacuum, not because of suction but because it’s nearly empty.
How empty is space?
Outer space is not completely empty
—it is a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, neutrinos, dust, and cosmic rays. … Outer space does not begin at a definite altitude above the Earth’s surface.
How old is space?
Scientists’ best estimate is that the universe is
about 13.8 billion years old
.
How far from Earth is space?
Why do you think getting to space is so difficult when it’s only
62 miles
away? Answer: Space is 62 vertical miles away. It takes a lot of energy to overcome gravity for that distance and gain the speed required to stay in orbit (approximately 17,500 miles per hour) once you’ve arrived.
What keeps space empty?
A point in outer space is filled with
gas, dust
, a wind of charged particles from the stars, light from stars, cosmic rays, radiation left over from the Big Bang, gravity, electric and magnetic fields, and neutrinos from nuclear reactions. …
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.
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 many galaxies are there?
The deeper we look into the cosmos, the more galaxies we see. One 2016 study estimated that the observable universe contains two trillion—or
two million million
—galaxies. Some of those distant systems are similar to our own Milky Way galaxy, while others are quite different.
