- When was the beginning of the universe?
- What is outside the universe?
- Does time exist for light?
- Where does space end?
- Is time Travelling possible?
- What is the beginning of time?
- How old is space?
- Why does time stop at the speed of light?
- How many dimensions are there?
- Is time a real thing?
- Is time an illusion?
- How old is the universe now?
- What is bigger than the universe?
- What existed before time?
- Does time have an end?
- Does time have beginning or end?
- Who creates God?
- Did the universe have a beginning?
When was the beginning of the universe?
13.7 billion years agoBig Bang theory holds that our universe began 13.7 billion years ago, in a massive expansion that blew space up like a balloon.
Here’s a brief rundown of what astronomers think happened..
What is outside the universe?
In our own backyard, the Universe is full of stars. But go more than about 100,000 light years away, and you’ve left the Milky Way behind. Beyond that, there’s a sea of galaxies: perhaps two trillion in total contained in our observable Universe.
Does time exist for light?
Photons do not experience time. … From the perspective of a photon, there is no such thing as time. It’s emitted, and might exist for hundreds of trillions of years, but for the photon, there’s zero time elapsed between when it’s emitted and when it’s absorbed again.
Where does space 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 13.8 billion years old, light from a galaxy more than 13.8 billion light-years away hasn’t had time to reach us yet, so we have no way of knowing such a galaxy exists.
Is time Travelling possible?
Yes, time travel is indeed a real thing. But it’s not quite what you’ve probably seen in the movies. Under certain conditions, it is possible to experience time passing at a different rate than 1 second per second. And there are important reasons why we need to understand this real-world form of time travel.
What is the beginning of time?
Rather, the universe, and time itself, had a beginning in the Big Bang, about 15 billion years ago. The beginning of real time, would have been a singularity, at which the laws of physics would have broken down.
How old is space?
approximately 13.8 billion yearsAccording to research, the universe is approximately 13.8 billion years old.
Why does time stop at the speed of light?
Space itself is shortened and time itself is slowed down for a moving reference frame, relative to the stationary observer. … In the limit that its speed approaches the speed of light in vacuum, its space shortens completely down to zero width and its time slows down to a dead stop.
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.
Is time a real thing?
Time is the indefinite continued progress of existence and events that occur in an apparently irreversible succession from the past, through the present, into the future.
Is time an illusion?
According to theoretical physicist Carlo Rovelli, time is an illusion: our naive perception of its flow doesn’t correspond to physical reality. … He posits that reality is just a complex network of events onto which we project sequences of past, present and future.
How old is the universe now?
13.8 billion yearsUniverse is 13.8 billion years old, scientists confirm Scientists estimate the age of the universe by measuring its oldest light.
What is bigger than the universe?
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! NASA’s telescopes allow us to study galaxies beyond our own in exquisite detail, and to explore the most distant reaches of the observable universe.
What existed before time?
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.
Does time have an end?
“Time is unlikely to end in our lifetime, but there is a 50% chance that time will end within the next 3.7 billion years,” they say. That’s not so long! It means that the end of the time is likely to happen within the lifetime of the Earth and the Sun. But Buosso and co have some comforting news too.
Does time have beginning or end?
We do not, even today, know the origin of time. … But in our quest for the beginning, we know already that time couldn’t have started with the Big Bang. In fact, it might not have had a beginning at all. After the Big Bang, the Universe was almost perfectly uniform, and full of matter, energy and…
Who creates God?
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.
Did the universe have a beginning?
Ever since it became clear that the universe had a beginning, the moment of its birth has been a headache for theorists. Roughly speaking, Einstein’s general theory of relativity does a fine job of explaining things after the moment of the big bang, but cannot handle the instant of creation itself.