Has there been a discovery of any planet or celestial body that resembles the Earth?

Answer 1

The closest except for temperature and corresponding elemental activity is Titan. Scientists are saying it is like earth was at its earliest stages.

As for anything more similar, they have, but it is too far away to know much about it:
http://www.cnn.com/2004/TECH/space/08/26/new.planet/
http://news.bbc.co.uk/2/hi/science/nature/4647142.stm

They are planning to look at Venus as well as Mars much more closely to understand Earth better. Venus is especially frustrating, because without the greenhouse gas effect, it might have almost been habitable. Interestingly, for some reason the Russians have spent decades studying Venus, while the Americans seem to prefer Mars. This Wikipedia article includes pictures of the surface of Venus:

http://en.wikipedia.org/wiki/Exploration_of_Venus
http://www.mentallandscape.com/V_Venus.htm

Answer 2

i read about a Super Earth, meaning a rocky world quite a few times the size of Earth, but you wouldn't want to live there. Problem is, the bigger worlds are easier to find. A planet Earth's size doesn't do much to the light of the star it goes around. A lot of the planets have been gas giants, and most have been very close to their star, like Mercury close.

Answer 3

Not as yet, although planets have been found using a technique that monitors infra red wave diffraction. It basically works by looking at bright objects (eg suns) and seeing if the infra red signals change (i.e. planet passing in front of them). When detected the amount of diffraction lets scientists work our the size of the planet. So far only massive planets (size of jupiter and bigger) have been discovered.

Answer 4

Well they have - but there is no clue as to whether there would be life in it or not. Some speculate that it is still in the forming stages. But this planet is suppose to have the most important oxygen in there. Check out the web - I do not have more details than that.

Answer 5

recently, the Galileo spacecraft observed Saturn's moon Titan and found a 'patch' of that moon that resembles Earth - although the scientists feel that the 'water' they are seeing is really a frozen substance - a solid gas - but its the first visual sighting of an 'Earth-like' environment found in space.

Answer 6

there has not been a discotery of any planet similair to earth.