It joins two other Earthlike planets-Gliese 581d and HD 85512 b-discovered by another instrument within the past few years.

“开普勒22b”加入了几年前刚发现的另外两颗类地行星的行列，即“葛利斯581d”和“HD 85512 b”。

Indeed Gliese 581d's parent is a red dwarf-the tiniest stellar species.

事实上，“葛利斯581d”的母恒星是一颗红色的小星星，是至今发现的最小的恒星。

It's classified as a super earth and scientists call it Gliese 486b.

它被归类为超级地球，科学家称它为Gliese 486 b。

At just about the same time, astronomers found that another nearby star, called Gliese 229, had an extremely faint companion.

几乎与此同时，天文学家发现了附近的另一颗名为 Gliese 229 的恒星，它有一个极其暗淡的伴星。

" Gliese 486 b cannot be habitable, at least not the way we know it here on Earth, " Trifonov said.

“Gliese 486 b不适宜居住，至少不像我们在地球上了解到的那样宜居。”

If that were the case, one side of Gliese 581d would be permanently lit (and heated) while the other experienced unending darkness.

如果是这种情况，那么“葛利斯581d”永远有一面是亮堂堂的，而且炎热，而另外一面则遭受着无尽的黑暗。

Cabellero said that what we learn from Gliese 486 b and other Earth-like planets could help scientists better understand atmospheres of other exoplanets that may have life.

卡贝列罗表示，我们从Gliese 486 b和其他类地行星上了解到的信息，可以帮助科学家更好地了解其他可能存在生命的系外行星的大气层。

It is among the closest exoplanets. It orbits a star that is smaller, cooler and less bright than our sun. Gliese 486 b's mass is 2.8 times greater than Earth's.

它围绕着一颗比太阳更小、更冷、更暗的恒星运行。Gliese 486 b的质量是地球质量的2.8倍。

On a personal note, when I worked on Hubble Space Telescope, Gliese 229b was one of our camera's first targets after it was installed on Hubble in 1997.

就我个人而言，当我为哈勃太空望远镜工作时，Gliese 229b 是我们的相机在1997年安装到哈勃上后的第一个观测目标。

In the very far just in future about 1. 35 million years from now, the star Gliese 710 will pass a mere 77 light-days from the earth which is 20 times closer to us than the closest star is today.

在遥远的未来，约 135 万年后，恒星格利泽 710 将会在与地球相距仅 77 光日的距离经过，比目前所知距离地球最近的恒星还要再靠近 20 倍。