What it is: Sunset on the moon, part of the first collection of high-definition ... a mountain in the "Sea of Crises" basin, ...

They had left for the moon four days earlier, and now, two of them were preparing to descend from lunar orbit and land in the Sea of Tranquility on the lunar module. Only those two could ever say ...

Before the Apollo 11 mission landed on the moon, President Richard Nixon ... As you talk to us from the Sea of Tranquility, it inspires us to redouble our efforts to bring peace and tranquility ...

The next phase of the Commercial Lunar Payload Services moon exploration program began ... northeast of the Sea of Tranquility, in what was described as a clockwork landing with no anomalies ...

The smaller Mare Serenitatis (Sea of Serenity, 400 miles across) can be seen immediately to the east of Mare Imbrium. Directions on the Moon’s surface are the same as you’d see on a normal map ...

The next phase of the Commercial Lunar Payload Services moon exploration program began ... northeast of the Sea of Tranquility, in what was described as a clockwork landing with no anomalies ...