Sentences with phrase «keep polar crater»
Because the poles are always at the edge of the sunlit side of Mercury, flat areas receive little solar energy and long shadows keep polar crater floors in perpetual darkness.
https://www.newscientist.com/ Not exact matches
On Tuesday, the team successfully executed the last of seven daring orbit correction maneuvers that kept MESSENGER aloft long enough for the spacecraft's instruments to collect critical information on Mercury's crustal magnetic anomalies and ice - filled polar craters, among other features.