Is the universe infinite?

The observable universe is finite in that it hasn't existed forever. It extends 46 billion light years in every direction from us. (While our universe is 13.8 billion years old, the observable universe reaches further since the universe is expanding).

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What came before the universe?

The Universe has not existed forever. It was born. Around 13.82 billion years ago, matter, energy, space ? and time ? erupted into being in a fireball called the Big Bang. It expanded and, from the cooling debris, there congealed galaxies ? islands of stars of which our Milky Way is one among about two trillion. Subsequently, can the universe be created from nothing? ' Another work ? by Tryon, suggested that our Universe was created spontaneously from nothing ("Ex Nihilo") as a "quantum fluctuation of some pre-existing true vacuum, or state of nothingness" [2,6]. Following this line of thought, the Universe is a fluctuation of the vacuum in the sense of the quantum field theory.

What is in the center of our Universe?

The universe, in fact, has no center. Ever since the Big Bang 13.7 billion years ago, the universe has been expanding. And so, without any point of origin, the universe has no center. One way to think about this is to imagine a two-dimensional ant that lives on the surface of a perfectly spherical balloon. You can also ask do people age in space? Scientists have recently observed for the first time that, on an epigenetic level, astronauts age more slowly during long-term simulated space travel than they would have if their feet had been planted on Planet Earth.

You can also ask how much do astronauts get paid?

The middle pay grades for astronauts are G-12 and G-13; each grade is divided into 10 steps, which depend on seniority and/or performance. The middle pay for a G-12 employee is $73,090 to $75,240, and the middle pay for a G-13 employee is $86,911 to $89,467. That means the average astronaut's pay is $81,177. Then, what does space smell like? As it turns out, several of the astronauts that have gone space-walking have reported a distinct odor at exactly this moment. Folks have said space smells like hot metal and seared meats.