Data from the Cassini spacecraft have provided astronomers with a likely source of Saturn's mysterious G ring, which was discovered by Voyager probe.
Data from the Cassini spacecraft have provided astronomers with a likely source of Saturn's mysterious G ring, which was discovered by Voyager probe.
卡西尼号太空船提供给天文学家的资料是土星神秘的G状环形物的可靠资源，这是由航行者的探测器发现的。