What are their names? Thanks.
2007-12-14 06:53:30 · 10 answers · asked by fslcaptain737 4 in Science & Mathematics ➔ Astronomy & Space
They think that mars may have at one time had microbal life but we wont know for some time to come and it would be the only candidate for a planet in our solar system to suppot life,
2007-12-14 07:00:48 · answer #1 · answered by SPACEGUY 7 · 0⤊ 0⤋
Here in our solar system, the objects that could have consistent areas of liquid water include Earth, Mars (subsurface only), Europa (subsurface only), Callisto (subsurface only) and POSSIBLY Jupiter if the atmospheric layers are arranged the right way (although this is unlikely).
Outside our solar system, there are only three known planets that could be in the right area for life. These are Gliese 581 c, Gliese 581 d, and 55 Cancri f. However, Gliese 581 c is probably too close to its star and is more like Venus than Earth, and 55 Cancri f is a gas giant (so it itself can't have liquid water, but if it has any rocky moons, they could have liquid water). This brings us up to a grand total of six or seven places in the Universe where life would be reasonably likely to survive (of which one, the Earth, is known to already have life).
2007-12-14 16:50:25 · answer #2 · answered by Anonymous · 0⤊ 0⤋
When considering the question of whether newly discovered planets could harbour life,most people assume that the only lifeforms that can exist are ones similar to the types found on Earth,but imagine if life evolved to live under different conditions and didn't require things like oxygen to survive.(Imagine,eg,that all the oceans and lakes on Earth were totally devoid of life and only air breathing creatures existed on Earth,then,if a planet was discovered that was completely covered in water people would say that it was incapable of containing life as there was no land - but then, a probe sent to that planet discovers that it contains fish,which to an air-breathing Earth,would appear to be a water-breathing lifeform,and would therefore be considered a totally alien lifeform).
On a slightly less exotic level,if a planet contained no animate life,but contained something like plant or lichen growth on the ground,would that satisfy your definition of 'life-bearing'?
2007-12-14 15:49:22 · answer #3 · answered by Anonymous · 0⤊ 0⤋
In our own solar system, Mars is a distinct possibility. Beyond our solar system the best candidate so far discovered is a planet known as Gliese 581c. It's about 20 light years away and appears to have surface temperatures that would allow water to exist. Since water seems to be a requirement for life to begin, Gliese 581c has caused some excitement in the scientific world. Lots of info about this world at this website==>http://www.dailymail.co.uk/pages/live/articles/technology/technology.html?in_page_id=1965&in_article_id=450467
2007-12-14 15:04:34 · answer #4 · answered by Chug-a-Lug 7 · 1⤊ 0⤋
Don't forget Europa. Okay, it's not a planet but it's one of Jupiter's moons that has water. Although on the outside surface, it's all ice due to the cold temp. Question is, is there liquid water underneath that ice? Scientists are eager to send a probe to determine if that is the case, some are in talks to send a probe that drills.
2007-12-14 15:02:27 · answer #5 · answered by Dr. K 7 · 1⤊ 0⤋
The most biologically interesting places in our solar system aren't planets: they're moons, Europa and Titan.
There might be microbes on Mars. They survive in very hostile conditions on Earth. But if there is water under Europa's ice, it could be a very lively place.
2007-12-14 16:09:41 · answer #6 · answered by laurahal42 6 · 2⤊ 0⤋
Mars, and a bunch outside of our solar system...that have weird numbers and letter like this new one Gliese 581c . I think Zeta Reticuli the place found after the first abducted couple has life on it...they said right where it was and looked like and scientists laugh (Betty and Barney Hill) years later...they found the planet exactly like they said. find a video about this on youtube.
http://www.news.com.au/dailytelegraph/story/0,22049,21618354-5001021,00.html
2007-12-14 18:36:04 · answer #7 · answered by gemenisthesign 3 · 0⤊ 0⤋
Mars is it, in this solar system (other than our planet). There have been other Class M (I think it is called) suspected in other star systems, but to my knowledge, there is no proof that any are in fact capable of having life. (It's kinda hard to analyze a planet's atmosphere without being there.)
2007-12-14 15:03:35 · answer #8 · answered by jodokast614 2 · 0⤊ 0⤋
Mars could have some microscopic life forms. Something that could follow the mars mission home if ya know what I mean.
2007-12-14 14:57:52 · answer #9 · answered by Anonymous · 1⤊ 0⤋
Mars.
2007-12-14 19:30:09 · answer #10 · answered by Jackolantern 7 · 0⤊ 0⤋