2006-11-14 03:34:44 · 7 answers · asked by hello motherhood!!! 1 in Science & Mathematics ➔ Astronomy & Space
No other planets are habitable for humans.
Mercury and Venus being far too hot.
Jupiter, Saturn and Neptune for being gas giants and so has no solid surface. The gravitational pull of these planets would crush our bodies. Juipters gravititational pull is over 300 times the earth.
Pluto is too far away thus seeing temperatures of over -200 degrees C.
Mars would have been a perfect candidate, as the temperature is quite similar to earth's at occasion. But our lifes need plenty of water and the abundance of water on Mars is basically zero.
For other life than humans, a moon called Europa, which orbits Saturn, contains frozen methane and water, which could harbour life. The only problem is its a moon and not a planet.
There are all the other planets (approximately 250 so far discovered) in the Keiper Belt which need to be examined
2006-11-14 03:41:14 · answer #1 · answered by Oz 4 · 0⤊ 0⤋
None that we've found so far, but there are probably habitable planets out there. Almost all the planets we've found so far are gas giant planets, like Jupiter and Neptune. We've found one or two that might be rocky planets, but still many times more massive than Earth, and not in the star's "habitable zone" (at least I don't think they are).
The Drake Equation is a tool you can use to estimate how many intelligent civilizations there are in our Galaxy; one of the factors in the Drake Equation is the number of stars with habitable planets. Unfortunately almost all of the factors in the Drake Equation are unknown, but it's still a fun tool. Do a search for "Drake Equation" to find it online.
2006-11-14 11:42:28 · answer #2 · answered by kris 6 · 0⤊ 0⤋
Of the approximately 200 hundred extrasolar planets found so far, none appear to be habitable--at least none have the conditions for life that we're familiar with.
2006-11-14 11:37:13 · answer #3 · answered by Chug-a-Lug 7 · 1⤊ 0⤋
There are many conditions that have to be present for life to exist on any planet. They have to have liquid water; they have to be a certain distance from the host star. Basically, they have to be Earth.
2006-11-14 16:21:08 · answer #4 · answered by Paulie D 5 · 0⤊ 0⤋
Only our Earth is habitable.
NASA and others have talked about a very long range idea of "terraforming" Mars, that is, to make it habitable one day. If you click on the Wikipedia link below, you can read all about it:
http://en.wikipedia.org/wiki/Terraforming
2006-11-14 11:44:09 · answer #5 · answered by cfpops 5 · 0⤊ 0⤋
None, not by our standards at least. Unless you want to attempt at terra-forming a planet. Yet that is beyond our technological level as of now.
2006-11-14 11:42:41 · answer #6 · answered by Anonymous · 0⤊ 0⤋
none but ours, this little planet called Earth and maybe a long long time ago Mars.
2006-11-14 11:36:17 · answer #7 · answered by pacificwaves8 2 · 0⤊ 0⤋