Best Nectarian

Mare Imbrium Basin is a massive, ancient impact basin located on the Moon’s nearside. It represents one of the largest lunar maria, formed by a colossal collision event approximately 3.85 billion years ago. This vast expanse of basaltic lava flows makes it a significant area for scientific study reg...

Tsiolkovskiy is a large impact crater located on the far side of the Moon. Its defining feature is a 180-kilometer diameter basin filled with dark basaltic lava flows. This crater provides scientists with valuable data regarding early solar system impacts and lunar geology. It’s primarily studied by...

Clavius is a substantial impact crater located on the southern hemisphere of the Moon. It measures approximately 225 kilometers in diameter making it one of the largest features formed by impacts on the lunar surface. The crater’s interior displays a prominent series of smaller craters, a characteri...

Schrödinger is a substantial impact crater situated on the Moon’s southern polar region. Its significance stems from its youth within the Schrödingerian period of lunar formation. The crater's large size and complex multi-ring structure make it a valuable target for scientific study. Researchers inv...

Theophilus is a large impact crater on the Moon’s inner nearside. Its significance lies in its exceptional preservation of a complex geological structure. The crater boasts a diameter of approximately 100 kilometers and features dramatically terraced walls rising from a central peak. Scientists stud...

Gassendi is a substantial impact crater on the Moon’s surface measuring approximately 101 kilometers in diameter. Its prominent features include a flooded floor and extensive rille systems that dramatically fracture its terrain. This crater is of particular interest to planetary scientists studying...

The Crisium Basin is an ancient impact basin on the Moon, notable for hosting Mare Crisium, which was famously explored by the Soviet Luna 24 sample return mission in 1976.

Moretus is a prominent lunar impact crater located near the Moon's south pole, notable for its imposing 114-kilometer diameter and towering central peak.

The Serenitatis Basin is a large impact basin on the Moon, notable for hosting the Apollo 17 mission in 1972, which explored its southwestern edge at the Taurus-Littrow valley.

Hertzsprung is an enormous lunar impact basin located on the far side of the Moon, notable for spanning roughly 570 kilometers and containing a highly detailed peak-ring structure.

The Nectaris Basin is an ancient lunar impact basin, notable for defining the beginning of the Nectarian geological period roughly 3.92 billion years ago and later hosting Mare Nectaris.

Arzachel is a prominent lunar impact crater, notable for its roughly 96-kilometer diameter, steep terraced walls, and a well-defined, off-center central peak.

Alphonsus is a large lunar impact crater notable for its 119-kilometer diameter and the presence of volcanic dark halo craters on its relatively flat floor.

Wargentin is a unique lunar impact crater, notable for being completely filled to its rim by solidified basaltic lava, leaving it resembling a raised plateau.

Mare Humorum is an ancient impact basin on the Moon, notable for its well-defined ring structure and its surface features formed by mare basalts that date back roughly 3.8 billion years ago.