NASA's James Webb Space Telescope has confirmed that crystalline water ice exists in the debris disk surrounding HD 181327, a ...

Mar. 17, 2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new ... Webb Telescope Captures Its ...

What if billions of years ago, the Red Planet had rain, snow, and even rivers that carved out landscapes much like those we ...

研究者使用詹姆斯韦布太空望远镜上的近红外光谱仪在HD 181327碎片盘中发现了水冰。他们检测到水冰在3μm处的固态宽吸收特征，包括3.1μm处明显的菲涅耳峰，这表明存在大的结晶水冰颗粒。水冰的梯度特征作为星心距离的函数揭示了水冰被破坏和补充的动态环境。