Is there another plant as earth that people live in it as we do but in another Galaxy?!?

Question

Is there another plant as earth that people live in it as we do but in another Galaxy?!?

Answer 1

no one knows

Answer 2

let me ask my OUIJA board....

W-E   D-O-N-T K-N-O-W

hmmm...

i guess we don't know.

a really good question is "How would we know if there is a planet like Earth in another galaxy?"

Answer 3

there very well could be but it takes 2 many centuries 2 find out plus what will happen if other humans/ creatures find us or we find them? galazy wars?? that will take waay 2 many resources 2 power. Peace? we first have 2 make peace work here in planet Earth

Answer 4

No one knows.!!!

Answer 5

Why are you asking questions that no one has the answer to?  We don't know of any life of the planets of the nearest star.  Thats just under 4 light years.  We don't know about anywhere in our own galaxy. Thats 30 thousand light years across.  We certainly don't know about other galaxies. They are tens of thousands or millions of light years away.  Or further.  NO  ONE KNOWS.  Because of the distance, its a very good bet that WE WILL NEVER KNOW.   But I will say this:  if you mean people like us, homo sapiens, No,  there is a near-zero chance that creatures looking exactly like us exist.  Not in the lifetime of a thousand universe would that happen.

Answer 6

Are you asking if there are civilizations in other galaxies?

Mathematically, almost certainly.  Technically, we cannot say for certain yet.

How similar are they to us?  Many of them are probably very much like us.  Most are probably radically different.

Addendum: suitti - I'm curious what you mean about the visible and entire universe... there's currently no way to ascertain what percentage the former is of the latter.  The actual universe could technically be smaller than the visible universe, in which case, the furthest objects we can view might be objects very close in front of us whose light has simply circumnavigated the universe atleast once.  The cosmic background radiation would be visible in all directions regardless of anything, because it comes from matter that filled the entire volume of the universe 300,000 years after the Big Bang.

Answer 7

No one knows,but as someone else said given the size of the universe its almost a mathematical impossibility that there is not.

Answer 8

Sure.  It's a big Universe.  There might even be another planet (not plant - the Earth certainly isn't a plant) where there are people who look and live something like us.

We'll do minimal math, and the line of thought.  The elements Oxygen, Hydrogen, Carbon and Nitrogren are the stuff of life, and are very common in the Universe.  Water is also common.  Every planet in our solar system has some, yes, even Mercury, and water has been detected around other stars and in nebulae.  Planets are common around stars.  At least half of all stars have planets.  There are a number of scenarios where life could take root - not just in a Goldilocks habitable zone.  There are hundreds of billions of stars in our galaxy.  There are at least hundreds of billions of stars in the visible Universe.  The Visible Universe is known to be an insignificant fraction of the minimum size of the whole Universe.  How insignificant?  Well, the current Visible Universe expanded from a space the size of a proton - this is a sub-atomic particle - really small.  Well, the whole Universe must have been at least as big as the current Visible Universe.  Because that's where the photons of the Cosmic Microwave Background Radiation came from.  The Universe was already at least 14 billion light years in radius.  If it were less in any direction, we wouldn't see the CMBR in all directions.  So, there have to be at least 10^40 stars, probably alot more.  And there's a good chance there's life on each of them.

So far, we know about life on exactly one planet.  But we don't know squat.  Frank Drake gave a talk (it's on line, but i don't have a link handy) recently.  He compared what we knew 44 years ago to what we know now.  He admitted that we didn't know much 44 years ago, and most of what we thought we knew was wrong.  We're still in the exponential part of the knowledge growth curve.  It's likely still true.

Uhm.  Our galaxy is 100,000 light years across.  But we don't need new physics, just bigger telescopes.  We'll eventually be able to image planets around other stars.