A frozen lake is shown that appears quite blue. Many oval light-colored bubbles are frozen into the ice, many times in columns. Please see the explanation for more detailed information.
图中显示的是一片冰冻的湖泊，看上去相当蓝。许多椭圆形的浅色气泡被冻结在冰中，许多气泡呈柱状。有关更多详细信息，请参阅说明。
2023年9月20日 Methane Discovered on Distant Exoplanet Illustration Credit: Ahmad Jabakenji (ASU Lebanon, North Star Space Art); Data: NASA, ESA, CSA, JWST Explanation: Where else might life exist? One of humanity’s great outstanding questions, locating planets where extrasolar life might survive took a step forward in 2019 with the discovery of a significant amount of water vapor in the atmosphere of distant exoplanet K2-18b. The planet and its parent star, K2-18, lie about 124 light years away toward the constellation of the Lion (Leo). The exoplanet is significantly larger and more massive than our Earth, but orbits in the habitable zone of its home star. K2-18, although more red than our Sun, shines in K2-18b‘s sky with a brightness similar to the Sun in Earth’s sky….
