As the full moon shines in the night sky this weekend, take a moment to revel in its beauty and search for a large, dark plain. The surface feature is Mare Tranquillitatis, or the Sea of Tranquility, ...

Miami Cleanup 2025 volunteers removed 26,000 pounds of debris region; Trashathon fundraisers raised $13,256 to support 16 local nonprofits.

On July 20, 1969, Apollo 11 astronaut Neil Armstrong announced his historic arrival on the ancient lava plain of Mare Tranquillitatis with the following message to NASA: "Houston, Tranquility Base ...

CAPE CANAVERAL, Fla. (AP) - Scientists have confirmed a cave on the moon, not far from where Neil Armstrong and Buzz Aldrin landed 55 years ago, and suspect there are hundreds more that could house ...

In Sea of Tranquility, named after the "silent flatlands" on the moon where the Apollo astronauts landed, the small settlement of Caiette on Vancouver Island is a crucial reference point from The ...

Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. As the full moon shines in the night sky this weekend, take a ...