The proper distance—the distance as would be measured at a specific time, including the present—between Earth and the edge of the observable universe is 46 billion light-years (14 billion parsecs), making the diameter of the observable universe about 93 billion light-years (28 billion parsecs)The proper distance—the distance as would be measured at a specific time, including the present—between Earth and the edge of the observable universeobservable universeThe comoving distance from Earth to the edge of the observable universe is about 1426 gigaparsecs (465 billion light-years or 440×10 26 m) in any direction The observable universe is thus a sphere with a diameter of about 285 gigaparsecs (93 billion light-years or 88×10 26 m) https://enwikipediaorg › wiki › Observable_universe
Observable universe – Wikipedia
is 46 billion light-years (14 billion parsecs), making the diameter of the observable universe about 93 billion light-years (28 billion parsecs)
How big is space really?
The observable Universe is 93 billion light-years in diameter Some scientists believe its true size is even scarier than that By using the Bayesian model averaging, scientists estimated that the Universe is at least 250 times larger than the observable Universe, or at least 7 trillion light-years in diameter
Does space ever end?
No, they don’t believe there’s an end to space However, we can only see a certain volume of all that’s out there Since the universe is 138 billion years old, light from a galaxy more than 138 billion light-years away hasn’t had time to reach us yet, so we have no way of knowing such a galaxy exists
How far does space really go?
It extends about 20 miles (32 kilometers) above the Earth Floating around the atmosphere is a mixture of molecules – tiny bits of air so small you take in billions of them every time you breathe
What is beyond the universe?
The universe, being all there is, is infinitely big and has no edge, so there’s no outside to even talk about Oh, sure, there’s an outside to our observable patch of the universe The cosmos is only so old, and light only travels so fast The current width of the observable universe is about 90 billion light-years
What is the real color of space?
If we add up all the light coming from galaxies (and the stars within them), and from all the clouds of gas and dust in the Universe, we’d end up with a colour very close to white, but actually a little bit ‘beige’
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 = −15 False vacuum decay may occur in 20 to 30 billion years if Higgs boson field is metastable
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 (27 kelvin)
How long is 1 hour in space?
Answer: That number times 1 hour is 00026 seconds So a person at that deep space location would have a clock that would run for one hour, while that person calculated that our clock ran for 59 minutes, 599974 seconds
How will the universe end?
The Big Freeze 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
Is space hot or cold?
If atoms come to a complete stop, they are at absolute zero Space is just above that, at an average temperature of 27 Kelvin (about minus 455 degrees Fahrenheit) But space is mostly full of, well, empty space It can’t move at all
Why is space black?
Because space is a near-perfect vacuum — meaning it has exceedingly few particles — there’s virtually nothing in the space between stars and planets to scatter light to our eyes And with no light reaching the eyes, they see black
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
What existed 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
What is the big BNAG theory?
The big bang is how astronomers explain the way the universe began It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now—and it is still stretching!
Why can’t you see the stars in space?
In space, or on the moon, there’s no atmosphere to spread the light around, and the sky will appear black at midday – but that doesn’t mean it’s not just as bright Even in space, stars are relatively dim, and simply don’t produce enough light to show up in photos set for bright sunlight
What does space smell like?
Astronaut Thomas Jones said it “carries a distinct odor of ozone, a faint acrid smell…a little like gunpowder, sulfurous” Tony Antonelli, another space-walker, said space “definitely has a smell that’s different than anything else” A gentleman named Don Pettit was a bit more verbose on the topic: “Each time, when I
Can the human eye see stars in space?
If you get to an altitude of 20 meters, the horizon stretches out to about 11 km But we can see objects in space which are even more distant with the naked eye The Moon is 385,000 km away and the Sun is a whopping 150 million km In the very darkest conditions, the human eye can see stars at magnitude 65 or greater
Can we travel back in time?
General relativity 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 was space created from 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
Will the Universe stop expanding?
The fate of the universe is determined by its density The preponderance of evidence to date, based on measurements of the rate of expansion and the mass density, favors a universe that will continue to expand indefinitely, resulting in the “Big Freeze” scenario below