NASA的OSIRIS-REx小行星样本中令人惊讶的磷酸盐发现

NASA的OSIRIS-REx小行星样本中令人惊讶的磷酸盐发现

自从去年秋天NASA的OSIRIS-REx(起源、光谱解释、资源识别、安全、风化层探测器探测器)任务将4.3盎司(121.6克)的原始贝努小行星样本带回地球以来,科学家们一直热切期待深入研究。他们希望这些物质能够揭示太阳系过去的秘密以及可能导致地球上生命起源的生命前化学成分。2023年6月26日发表在《陨石学与行星科学》上的贝努样本的早期分析表明,这种期待是有理由的。

丁基内什小行星的月出

丁基内什小行星的月出

2023年11月4日 Dinkinesh Moonrise Image Credit: NASA/Goddard, SwRI, Johns Hopkins APL, NOIRLab Explanation: Last Wednesday the voyaging Lucy spacecraft encountered its first asteroid, 152830 Dinkinesh, and discovered the inner-main belt asteroid has a moon. From a distance of just over 400 kilometers, Lucy’s Long-Range Reconnaissance Imager captured this close-up of the binary system during a flyby at 4.5 kilometer per second or around 10,000 miles per hour. A marvelous world, Dinkinesh itself is small, less than 800 meters (about 0.5 miles) across at its widest. Its satellite is seen from the spacecraft’s perspective to emerge from behind the primary asteroid. The asteroid moon is estimated to be only about 220 meters wide. Tomorrow’s picture: aurora borealis 丁基内什小行星的月出 影像提供: NASA/Goddard, SwRI, Johns Hopkins APL, NOIRLab 说明: 上星期三,曳航的露西号宇宙飞船遇到了它的第一颗小行星152830…