2007-02-26 10:53:56 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
i am 110% sure that their is life on mars cuz their is evidence of water but it is gone
i belive maybe the martians hate the water so they destroyed it
2007-02-26 10:58:28 · answer #1 · answered by Anonymous · 0⤊ 1⤋
That is the question that everybody asks and nobody can be sure. In my opinion there probably is life some where out there but it would be way to hard to have a conversation with them. think of this. Radio waves travel at the speed of light, this would mean that if we wanted to send a message to a life form that lives at our nearest interstellar neighbor it would take 4 years to get there. And 4 for a reply. Also think of this there are say 10^9 galaxies in the universe and each one contains maby 10^9 stars then say 1/2 of them develop planets. Maby 1/20 of the planets can support life and 1/2 of those planets bother to develop life. Also take into the face that the moons of those planets could also support life. Think about it and you got a hell of a lto of aliens in the universe. Scientists right now think there is a reasonable chance of finding life on Europa (Jupiter's moon) because it has and under ground ocean heated by the friction of tides.
http://groups.google.com/group/neat-astronomy?hl=en
2007-02-26 19:22:19 · answer #2 · answered by chase 3 · 0⤊ 0⤋
I am certain that there is life on other planets, simply because there are so many planets and the universe is so astoundingly vast.
That does not imply that we will ever contact an alien civilization. First off, space is so unimaginably vast, and so is time. The odds of finding a technologically compatible civilization (with whom we can communicate using analogue or simple digital communications) within, say, 100 light-years, is staggeringly small. And, suppose we found a civilization that, against all odds, is technologically compatible and is only 100 light-years away. It would take 200 years for every single message to be passed back and forth, and they would STILL be 946,052,840,000,000 kilometres away! We will never meet intelligent alien life in our lifetime.
2007-02-26 19:19:35 · answer #3 · answered by poorcocoboiboi 6 · 1⤊ 0⤋
According to Drake's equation (see http://upload.wikimedia.org/math/c/5/7/c57fe678db3cb8c47ca58c85bd5d41c2.png) there are about 1000 planets in the milky way that have life that has evloved technologially to the point that we could theoretically contact each other.
But the chance that actual contact could taking place is very small because the galaxy is so large that 1) we can't find each other and 2) even if we could find each other, communication at the speed of light with a planet half way between us and the center of the galaxy ( a near neighbor) would take around 20,000 + years.. in each direction.
2007-02-26 23:12:13 · answer #4 · answered by fredrick z 5 · 0⤊ 0⤋
A. Without question.
B. Because there are trillions of planets so the probability is about 1 (meaning a certainty)
2007-02-26 19:24:50 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Of course all of it is life, for example the sun is alive. Its converting hydrogen into helium to grow plants, animals, all the energy on the earth is from the sun. Without sun there would be no people, so in essence you are the sun, water, earth, air etc. You don't recognize life, what you think the earth looked like 4 billion years ago? Just a hot rock, well look at it now its alive
2007-02-26 20:12:00 · answer #6 · answered by Anonymous · 0⤊ 0⤋
we are on another planet
2007-02-26 19:06:48 · answer #7 · answered by fuufingf 5 · 0⤊ 1⤋
why??? theres no why lol, there just is or there just isnt
2007-02-26 19:00:57 · answer #8 · answered by Anonymous · 0⤊ 1⤋