美国《科学》杂志报道,科学家首次发现一颗和地球体积相近、位于恒星宜居带中的行星——“开普勒-186F”。它的直径只比地球大10%,围绕母星(一颗距地球约500光年的红矮星)的公转周期为130天。它是迄今发现的“最像”地球的行星,那里正午的“阳光”亮度,差不多是地球上日落前一个小时的亮度。科技高速发展,但寻找外星生命迹象的脚步才刚刚迈开,终有一天我们会发现,地球不是“宇宙的孤儿”。 For the first time, scientists in the United States reported that scientists found a planet “ Kepler -186F ” that is close to Earth’s volume in a star-friendly zone. Its diameter is only 10% larger than Earth, and the orbit around the parent star, a red dwarf about 500 light-years from Earth, is 130 days. It is by far the “most like” planet found, where the noon “sunshine” is about the same brightness of an hour before sunset on Earth. The rapid development of science and technology, but looking for signs of extraterrestrial life has just begun to take the footsteps of, one day we will find that the Earth is not “orphan ” of the universe.