Everybody suspects that there must be planets somewhere since space is so wide. I think so too. We are having trouble finding some, but others are known as earth-like planets. One of them is a planet called "Gliese-12b" which is 40 light-years away from the earth. The size is almost the same as Venus's and is a a little smaller than the earth's. The planet goes round the Gliese-12 in 12.8 days. It means one year has only 12.8 days for Gliese-12b. The radiation intensity is 1.6 times as strong as the radiation received by the earth from the sun. However, the surface temperature is suspected to be about 42 degrees and is classified as the lowest temperature of all of the planets that have ever been discovered. The earth's surface temperature is 15 degrees, so it is a bit hotter. On top of that, it is said that the planet has air, too. On the other hand, Venus's is 460 degrees due to thick CO2, and so it is a very hot planet. That's why it is hard for people to move to and live on it. If people can move to "Gliese-12b" and live there in the future, the day might come when we can see the earth from the planet as if it is science fiction movies.

Everybody expects that there must be inhabited planets somewhere since space is so vast. I think so too. We are having trouble finding any, but some known earth-like planets have been discovered/found/observed. One of them is a planet called "Gliese-12b" which is 40 light-years away from the earth. It is almost the same size as Venus and is a little smaller than the Earth. The planet goes round the Gliese-12 in 12.8 days, which means that one year has only 12.8 days for Gliese-12b. The radiation intensity is 1.6 times as much as earth receivs from the sun. However, the surface temperature is expected to be about 42 degrees, which is one of the lower temperatures of the planets that have been discovered. The earth's surface temperature is 15 degrees, so it is a bit hotter (You need to specify what IT refers to - we can't tell). On top of that, it is said that the planet has air, too. On the other hand, Venus's is 460 degrees due to thick CO2 and is a very hot planet. That's why it is hard to imagine people living on Venus. If people can move to "Gliese-12b" and live there in the future, the day might come when we can see the earth from the planet as if it is science fiction movies.(I don't understand this last part).