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How big is the universe in light years?
93 billion light-years
The radius of the observable universe is therefore estimated to be about 46.5 billion light-years and its diameter about 28.5 gigaparsecs (93 billion light-years, or 8.8×1026 metres or 2.89×1027 feet), which equals 880 yottametres.
How is the universe 92 billion light years?
While the estimate of 92 billion light-years comes from the idea of a constant rate of inflation, many scientists think that the rate is slowing down. If the universe expanded at the speed of light during inflation, it should be 10^23, or 100 sextillion.
How can the universe be 46 billion light years?
However, the distance to the edge of the observable universe is about 46 billion light years because the universe is expanding all of the time. Imagine that a photon of light is emitted from a point on the edge of our observable universe. While that photon has been travelling through space, the universe has expanded.
How long would it take to travel 13 billion light years?
To travel 13.3 billion light years from Earth, Voyager 1 would then take 228,900 years to do so.
How long will the universe live?
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 fast can we travel a light-year?
186,282 miles per second
Saying we were a space shuttle that travelled five miles per second, given that the speed of light travels at 186,282 miles per second, it would take about 37,200 human years to travel one light year. That’s a long time, and what would you see?
How old is the universe in light years?
If the universe is only 14 billion years old, how can it be 92 billion light years wide? – YouTube If the universe is only 14 billion years old, how can it be 92 billion light years wide?
How big is the universe according to scientists?
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.
How many light years away is the Milky Way?
4 billion light-years away, so today we can see it as it was 13.4 billion years ago. That is only 400 million years after the big bang . It is one of the first galaxies ever formed in the universe.
How big is the universe according to Hubble constant?
By using the Hubble Constant, we can calculate where the origin of those photons are now, and the answer is staggering – 46 billion light-years away! That means the “known universe” is 92 billion light-years in diameter!