Asked By: Raymond Taylor Date: created: Mar 06 2021

What is the edge of the observable universe called

Answered By: Gerld Bennett Date: created: Mar 09 2021

The diameter of the observable universe is estimated at about 28 billion parsecs (93 billion light-years), putting the edge of the observable universe at about 46–47 billion light-years away.

Asked By: John Kelly Date: created: Mar 26 2022

What is at the edge of the universe

Answered By: Evan Bennett Date: created: Mar 27 2022

We know that the galaxies must extend much further than we can see, but we do not know whether the universe is infinite or not. When astronomers sometimes refer (carelessly!) to galaxies “near the edge of the universe,” they are referring only to the edge of the OBSERVABLE universe – i.e., the part we can see.

Asked By: Raymond Green Date: created: Apr 17 2021

What defines the observable universe

Answered By: Alan Jones Date: created: Apr 20 2021

The observable universe is a spherical region of the universe comprising all matter that can be observed from Earth or its space-based telescopes and exploratory probes at the present time, because electromagnetic radiation from these objects has had time to reach the Solar System and Earth since the beginning of the

Asked By: Walter Long Date: created: Jan 02 2022

How far is the edge of the observable universe

Answered By: Zachary Price Date: created: Jan 02 2022

The universe is about 13.8 billion years old, so any light we see has to have been travelling for 13.8 billion years or less – we call this the ‘observable universe’. 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.

Asked By: Joshua Turner Date: created: Apr 29 2022

Is the universe flat

Answered By: Richard Martin Date: created: Apr 30 2022

The global shape of the universe can be described with three attributes: Finite or infinite. Flat (no curvature), open (negative curvature), or closed (positive curvature) Connectivity, how the universe is put together, i.e., simply connected space or multiply connected.

Asked By: Evan Gonzales Date: created: May 03 2021

Is there a center of the universe

Answered By: Hunter Robinson Date: created: May 03 2021

The center of the Universe is a concept that lacks a coherent definition in modern astronomy; according to standard cosmological theories on the shape of the universe, it has no center. Historically, different people have suggested various locations as the center of the Universe.

Asked By: Jonathan Bennett Date: created: Aug 06 2021

How Is time travel possible

Answered By: James Scott Date: created: Aug 09 2021

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, transversable wormholes, and Alcubierre drive.

Asked By: Jonathan Cooper Date: created: Apr 13 2022

Does outer space end

Answered By: Jose Reed Date: created: Apr 14 2022

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.

Asked By: Charles Lopez Date: created: Mar 16 2022

Will the universe last forever

Answered By: Ethan Roberts Date: created: Mar 18 2022

There is a strong consensus among cosmologists that the universe is considered “flat” (see Shape of the universe) and will continue to expand forever.

Asked By: Sebastian Price Date: created: Jul 14 2021

What is the universe made of

Answered By: Charles Flores Date: created: Jul 16 2021

Composition. The Universe is composed almost completely of dark energy, dark matter, and ordinary matter. Other contents are electromagnetic radiation (estimated to constitute from 0.005% to close to 0.01% of the total mass-energy of the Universe) and antimatter.

Asked By: Jaden Cooper Date: created: Aug 05 2021

Is Earth the center of the observable universe

Answered By: Eric Smith Date: created: Aug 07 2021

Because the observable universe is defined as that region of the Universe visible to terrestrial observers, Earth is, because of the constancy of the speed of light, the center of Earth’s observable universe.

Asked By: Fred Hughes Date: created: Jan 12 2021

How fast is the universe expanding

Answered By: Robert Hughes Date: created: Jan 13 2021

Wendy Freedman determined space to expand at 72 kilometers per second per megaparsec – roughly 3.3 million light years – meaning that for every 3.3 million light years further away from the earth you are, the matter where you are, is moving away from earth 72 kilometers a second faster.

Asked By: Landon Taylor Date: created: Aug 09 2021

Is dark matter matter

Answered By: Jose Jackson Date: created: Aug 12 2021

Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total energy density.

Asked By: Morgan Collins Date: created: Apr 18 2022

What planets are in the Milky Way

Answered By: Herbert Richardson Date: created: Apr 19 2022
  • Mercury.
  • Venus.
  • Earth.
  • Mars.
  • Jupiter.
  • Saturn.
  • Uranus.
  • Neptune.
Asked By: Adrian Phillips Date: created: Jul 18 2021

How big is the universe in simple terms

Answered By: Nicholas Martin Date: created: Jul 18 2021

We cannot see space beyond the limitations of light (or any electromagnetic radiation) the diameter of the Universe is at least 93 billion. It is estimated that the age of the Universe is 13.73 (± 0.12) billion years, and that the diameter of the Universe is at least 93 billion light years, or 8.80 ×1026 metres.

Asked By: Ronald Griffin Date: created: Jan 11 2021

What is the light horizon

Answered By: Wyatt Miller Date: created: Jan 14 2021

From Wikipedia, the free encyclopedia. The particle horizon (also called the cosmological horizon, the comoving horizon (in Dodelson’s text), or the cosmic light horizon) is the maximum distance from which light from particles could have traveled to the observer in the age of the universe.

Asked By: Alfred Mitchell Date: created: Jun 12 2021

Why is it called space time

Answered By: Chase Carter Date: created: Jun 13 2021

Space-time is a mathematical model that joins space and time into a single idea called a continuum. But in a relativistic universe, time cannot be separated from the three dimensions of space. This is because the observed rate at which time passes depends on an object’s velocity relative to the observer.

Asked By: Jason Miller Date: created: Nov 30 2021

Is there more than 3 dimensions

Answered By: Lewis Long Date: created: Dec 01 2021

Immanuel Kant, in 1783, wrote: “That everywhere space (which is not itself the boundary of another space) has three dimensions and that space in general cannot have more dimensions is based on the proposition that not more than three lines can intersect at right angles in one point.

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