Also, how many Earth-like planets are there in the universe? I know they are very rare but even if they are wouldn't there still be millions of them in the universe?
2007-07-22 12:24:10 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
We dont know if aliens exist.There is a chance of life on Europa,Jupiters moon for life in our solar system.But it would be aquatic,due to the fact the surface is ice,but under the ice supposed to be a warm ocean.If we do find aliens,they will probably be microscopic.The chance of finding more intelligent life is small.With supposedly 100 Billion galaxies in the universe,and 100 Million stars in each galaxy,the chances are....well...likely of finding another Earth-like planet.
2007-07-22 12:30:39 · answer #1 · answered by TI-452 2 · 0⤊ 1⤋
I'm not entirely certain an "Earth-like" planet is necessary for life. We detect critters living in places on Earth that were thought to be totally inhospitable to life of any sort.
We presume a carbon-based life. That's because that's all we know. It's entirely possible we could look right at a life form and not even know it's alive. We may not recognize intelligence. It took us quite a while to learn that we don't hold the corner on intelligence.. even here on Earth.
The problem in locating them is that our detection methods are limited by the speed of light. Let's suppose there's was a planet a million light years away.... orbiting around some small yellow star. If we sent a message "out there" kind of like a note in a bottle, with the idea that maybe somebody might receive it, It would be a million years before they could receive it. And they would have to be listening for it. And they would probably have to be interested enough to try to figure out what it meant. But let's say they're pretty bright, and send a message back to us... that's two million years that will have passed between the time we sent the message and the time we could hope for a response. A million years ago we weren't even able to stand on our hind legs. Within another million we may well over pollute, over populate, over develop, or bomb ourselves out of existence. So, by the time we get their message, or they get ours and we get their reply, one of both of our civilizations could be gone.
2007-07-22 20:46:38 · answer #2 · answered by gugliamo00 7 · 0⤊ 1⤋
Yeah I think they exist theres no way earth is the only place that supports life. Theres probably millions of other earth-like planets throughout the universe with intelligent species many of whom are probably wondering the same thing and some of them probably have the technology to get here.
2007-07-22 19:58:23 · answer #3 · answered by mprcapecod 3 · 0⤊ 0⤋
I say there are other "people" out there somewhere but they aren't like aliens.....they're like humans only way more advanced than the earth combined.
There probably are more planets that support life like ours, but we only know of 8 planets and 3 dwarf planets. Technology can only get so advanced before they must research some more and help build more advanced technology.
2007-07-22 20:57:38 · answer #4 · answered by ginga rale 2 · 1⤊ 0⤋
I believe that there are alien beings out there, even on our planet.
I also believe there are much more intelligent beings out there and the reason why they either come here or borrow some of our people, is to see why humans are so careless with all the things that our creator has given to us, and why there is so much hate and greed
I believe there are too many planets to even count and that will never be known about.
2007-07-22 19:38:50 · answer #5 · answered by chercinbob 4 · 0⤊ 0⤋
well think of it this way, if the universe is indeed infinite and therefore more planets than every grain of sand on the planet, then who is to say that we are the only intelligent life forms in the universe.
2007-07-22 19:37:53 · answer #6 · answered by havok01520 1 · 1⤊ 0⤋
i think aliens exist, but i don't know how many Earth-like planets exist
2007-07-22 21:00:22 · answer #7 · answered by Whatever 2 · 1⤊ 0⤋
who are the aliens? beings from other planets
we are not ALONE! only selfish self-absorbed people think that. there BILLIONs and BILLIons of planets and galaxies out there to think we are the only ones that are around is not only stupid but ILLOGICAL.
i beleive astronomers discovered earthlike planet 2 weeks ago..i saw in the magazine
2007-07-22 20:06:58 · answer #8 · answered by megaherzfan 4 · 0⤊ 0⤋
over 11 million in america alone...... just kidding..... I believe there has to be..... it would be arrogant and ignorant to think otherwise.... I believe this is all a test and mankind has to make it happen or we are only significant to ourselves.... eventually we are doomed on our mother planet and will have to leave...... hopefuly long before that time comes we will know what to do and where we are going to. god bless us all..... this is his test for us to persivere or parish..... im certain there are many worlds like this ...... we NEED to find them eventualy.
2007-07-22 19:35:18 · answer #9 · answered by detrich2004 1 · 0⤊ 0⤋
Of course there are aliens. Art Bell is an alien!
2007-07-22 19:43:08 · answer #10 · answered by rgallison 2 · 0⤊ 1⤋