The water-infused deposits also end abruptly along the uplifted plateau's edge, because later flows that flooded the surrounding Oceanus Procellarum
covered up the terrain lower down.
1969 Apollo 12 astronauts Pete Conrad and Alan Bean land at Oceanus Procellarum
and become the third and fourth humans to walk on the Moon.
Early theories suggested the craggy outline of a region of the moon s surface known as Oceanus Procellarum
, or the Ocean of Storms, was caused by an asteroid impact.
Telescopic observers and mapmakers in the early 1600s thought these smooth, dusky markings were similar to Earth's bodies of water and thus gave them fanciful Latin names such as Mare Imbrium (Sea of Showers), Mare Nubium (Sea of Clouds), and Oceanus Procellarum
(Ocean of Storms).
Later in the year commander Charles Conrad Jnr and his team successfully completed a second mission, Apollo 12, to explore an area on the moon called Oceanus Procellarum
(Ocean of Storms).
Based on these factors, the geologists deduced that the best places to find helium-3 are Mare Tranquillitatis and the Oceanus Procellarum
on the near side of Moon, and the Tsiolkovskiy crater and the Mare Orientale on the far side.
We first discovered KREEP in Apollo 12 samples collected in Oceanus Procellarum
, the largest expanse of maria.
All of the youngest mare lavas are in Oceanus Procellarum
(12), with the very youngest--about 1.
He also assigned fanciful names to the maria such as Mare Imbrium, "Sea of Rains," and Oceanus Procellarum
, "Ocean of Storms.
Though the majority were scattered in Oceanus Procellarum
, located on the westernmost edge of the Moon's nearside, searches turned up many possibilities in other spots.
He cleverly placed the heretic names on craters adrift near the dark plain he called Oceanus Procellarum
("Ocean of Storms").
BULL'S-EYE Sometime in the last billion years a meteoroid gouged this unnamed football-field-sized crater in Oceanus Procellarum