A stationary lander that touched down on Mars in 2018 and studied the planet's internal structure through seismology until December 2022, detecting over 1,300 marsquakes and revealing the size and composition of Mars' core.

The first spacecraft to intentionally impact another celestial body, Luna 2 struck the Moon's surface near the Aristides, Archimedes, and Autolycus craters on September 14, 1959, delivering Soviet pennants to the lunar surface.

136472 Makemake

A large, reddish-colored dwarf planet located in the Kuiper Belt, notable for being the third brightest trans-Neptunian object and having an extremely low albedo moon nicknamed MK2.