天体生物学家伊娃·维洛维奇在柏林的实验中发现,在模拟K矮星光线的条件下,植物的光合作用效率超过了地球阳光环境下的效率 1。她在实验室观察到园芜菁在K矮星模拟光下的生长速度和高度均优于地球阳光条件 1。
围绕K矮星运行的超级地球可能成为宇宙中最适合生命存在的世界 1。这类超级地球的体积比地球大20-30%,质量约为地球的两倍 1。科学家指出,超级地球更大的质量和重力能够维持更厚的大气、更稳定的气候和更强的磁场 1。其中,更强的磁场能够阻挡宇宙辐射 1。K矮星是比太阳更冷、燃烧速度更慢的橙色恒星 1。
Astrobiologist Iva Vilović has discovered evidence suggesting that planets orbiting K-dwarf stars may offer conditions more favorable for life than Earth itself.1 In laboratory experiments conducted in Berlin, Vilović observed that plants demonstrated enhanced photosynthetic efficiency when exposed to simulated K-dwarf starlight compared to Earth's natural sunlight.1 Specifically, garden turnips grown under K-dwarf light conditions exhibited faster growth rates and greater height than those cultivated under standard solar illumination.1
The research points to a particular class of exoplanets known as super-Earths as potentially optimal habitats within the cosmos.1 These worlds, which are approximately 20 to 30 percent larger in volume than Earth with roughly double Earth's mass, orbit K-dwarf stars—cooler, slower-burning orange stars distinct from our Sun.1 The greater gravitational force of super-Earths enables them to maintain thicker atmospheres and more stable climates while generating stronger magnetic fields capable of deflecting cosmic radiation.1 These combined characteristics suggest that life might not only survive but potentially flourish on such worlds more readily than on Earth.
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