What is so risky about Juno’s special maneuver? How close will the spacecraft get to the gas giant, and what does it hope to learn? Here are five quick facts summarizing the excitement around the recent Juno mission to Jupiter
The moons of Jupiter and the Cassini division of Saturn's rings always delight no matter how many times we see it. Not limiting our viewing only to the Messiers, we have also visited the open star clusters. One of our favorites that is usually clear is the OWL or E.T. Cluster (NGC...
aHe did not feel that Jupiter was huge, but that he had shrunk--- to a tenth of his normal size. Perhaps, with time, he would grow accustomed to the inhuman scale of this world. 他没有认为木星是巨大的,但他收缩了--- 对十分之他的正常大小。 或许,以时间,他会增长习惯对这个世界残忍的...