请各位帮忙翻译一下ScientiststhinkthattherehasbeenlifeonEarthformillionsofyears.However,wehaven'tfoundlifeonotherplanetsyet.Whynot?TheEarthisaplanetanditgoesaroundtheSun.EightotherplanetsalsogoaroundtheSu

Question

请各位帮忙翻译一下
Scientists think that there has been life on Earth for millions of years.However,we haven't found life on other planets yet.Why not?
The Earth is a planet and it goes around the Sun.Eight other planets also go around the Sun.None of them has an environment with air,so people and things cannot grow.The Sun and its planets are called the solar systemThe solar system is a small par of our galaxy.
But scientists have discovered many other galaxies in the universe.They are a long way away and their light has travelled for many years to reach us.It is hard to understand how large the universe is.
Scientists have sent lote of spacecraft to look at other planets in our solar system,and some spacraft have gone beyond the solar system.However,mo ome has discovered any life in space yet.
But why has no one from other planets sent us a message?Have they tried to send information to us?With so many stars in the universe,are we alone,or is there life out there in space?We don't know...yet.

Answer 1

科学家认为百万年前地球上就有了生命,但我们尚未在别的星球上发现生命.这是为什么呢?
地球是一个绕太阳转的行星.另外有八颗行星也绕太阳转.它们的环境中不含空气,所以人类和生物无法生长.太阳和它的行星构成了太阳系.太阳系只是银河的一个小部分而已.
但科学家探查过宇宙中的其他星系.它们距离我们非常遥远,它们发出的光要经过好几年才能到达我们这里.所以很那清楚宇宙究竟有多大.
科学家派出了很多宇宙飞船来查看太阳系中其他行星,一些飞船甚至飞出了太阳系.但还没有人发现有任何生命体在宇宙中存在.
但为什么没有任何其他星球的人给我们发送信息呢?他们尝试过给我们发送信息么?和如此多的星球同在一个宇宙,我们是孤单的么?或者宇宙的某处有生命存在?我们仍一无所知.