近日，天文学家在距离地球146光年的宇宙深处发现了一颗新的系外行星，被形象地称为“冰冻地球”。该行星围绕一颗红矮星运行，处于恒星系统的宜居带边缘，但由于其母恒星温度较低，行星表面常年处于极寒状态，平均温度低至零下150摄氏度左右，形成了全球性的冰封地貌。科学家通过凌星观测法和径向速度测量确认了它的存在，并推测其成分类似太阳系中的冰巨星（如天王星、海王星），可能由冰、岩石和少量气体组成。尽管环境严寒，该行星可能存在地下海洋或间歇性地质活动，为地外生命的研究提供了新的想象空间。这一发现不仅拓展了人类对系外行星多样性的认知，也为探索宇宙中极端环境下的潜在生命形式提供了重要参考。
Astronomers recently discovered a new exoplanet located 146 light-years away from Earth, dubbed the ‘Frozen Earth.’ This planet orbits a red dwarf star near the edge of the habitable zone, but due to its host star’s low temperature, the planet’s surface remains in a perpetual deep freeze, with average temperatures plummeting to around -150 degrees Celsius, resulting in a globally icy landscape.Using transit observation and radial velocity measurements, scientists confirmed its existence and hypothesize that its composition resembles ice giants in our solar system (such as Uranus and Neptune), likely consisting of ice, rock, and trace gases. Despite the harsh environment, the planet may harbor subsurface oceans or intermittent geological activity, offering new possibilities for research on extraterrestrial life. This discovery not only expands our understanding of exoplanet diversity but also provides critical insights into potential life forms in extreme cosmic conditions.
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