Scientists may learn more from the data coming from the infrared spectrometer on the Cassini spacecraft currently orbiting Saturn, Orton said.

• 奥顿说，科学家们也许能从“卡西尼”太空船上的红外线分光计采集的数据中了解更多这方面的情况。“卡西尼”目前正围绕土星旋转。