Tsiolkovskiy is a large lunar impact crater that is located on the far side of the Moon. Named for Russian scientist Konstantin Tsiolkovsky, it lies in the southern hemisphere, to the west of the large crater Gagarin, and northwest of Milne. Just to the south is Waterman, with Neujmin to the south-southwest. The crater protrudes into the neighbouring Fermi, an older crater of comparable size that does not have
Tyndall is a relatively small lunar impact crater on the far side of the Moon, behind the southeastern limb. It is located very near the western outer rim of the larger crater Pizzetti, and the two are separated only by a few kilometers. To the southwest of Tyndall is the crater Bjerknes, and to the south lies Clark. This is a roughly circular, bowl-shaped crater
Sommerfeld is a large lunar impact crater that is located in the far northern latitudes of the Moon. It lies on the far side, and can only be viewed from orbit. To the south of Sommerfeld is Rowland, a crater about the same size as Sommerfeld. Southeast of Sommerfeld is the huge walled plain Birkhoff. This crater belongs to a class of lunar features sometimes termed
The South Pole–Aitken basin (SPA Basin, /ˈeɪtkɪn/) is an immense impact crater on the far side of the Moon. At roughly 2,500 km (1,600 mi) in diameter and between 6.2 and 8.2 km (3.9–5.1 mi) deep, it is one of the largest known impact craters in the Solar System. It is the largest, oldest, and deepest basin recognized on the Moon. It is estimated that it was formed 4.2 to 4.3 billion
Stebbins is a large lunar impact crater on the far side of the Moon. It is located along the north-northeastern rim of the even larger crater Birkhoff, with about one-third of Stebbins laid across the interior of Birkhoff. To the north of Stebbins is the smaller Hippocrates, and to the west is Sommerfeld. This is a worn and eroded crater with smaller impacts along the
Stoletov is a lunar impact crater on the far side of the Moon. It is located in the northern hemisphere, less than one crater diameter to the north of Kulik. To the northwest of Stoletov is Montgolfier. This is a worn and eroded crater formation. There is a merged cluster of small impacts along the northern rim and small craterlets across the southern and
Sverdrup is a lunar impact crater that is located about one crater diameter from the southern pole of the Moon. It lies on the far side of the Moon with respect to the Earth, in an area of the surface that is only illuminated by very oblique light from the Sun. The interior part of the crater is cloaked in perpetual darkness, and thus has not been
Sniadecki is a lunar impact crater on the far side of the Moon. This is a circular, bowl-shaped feature that is not overlain by any significant impacts. However the larger satellite crater Sniadecki Q is attached to the southwestern outer rim and has disrupted the rim edge somewhat. There is also a small crater attached to the western outer rim. To the
Shuleykin is a small lunar impact crater that lies to the south of Mare Orientale, within the ring-shaped Montes Rook. It is located just on the far side of the Moon, but this area can be viewed from the Earth during periods of favorable libration and lighting, although it can only be seen from the edge. This crater was formed following the Orientale impact event, and so is
Shternberg is an eroded lunar impact crater on the Moon’s far side. It lies just to the west-northwest of the crater Ohm, and is completely covered by higher-albedo material from the ray system that surrounds Ohm. To the west-southwest of Shternberg is Weyl, and to the west-northwest is Comstock. Less than one crater diameter to the northeast of Shternberg is Comrie. This crater has been heavily worn and