The Roscosmos Luna-25 aims for a historic soft landing at the lunar south pole
The Soyuz rocket with the Luna-25 probe is transported to the launchpad at Vostochny cosmodrome in Russia, August 8, 2023. © Roscosmos/RSC Energia
The Russian space program has launched a probe to the moon for the first time since 1976. Luna-25 blasted off from the Vostochny spaceport in the Amur Region and is aiming to touch down in the southern polar region by August 21.
All previous probes have landed in the equatorial region. If it lands successfully, Luna-25 would arrive two days before India’s Chandrayaan-3 for a historic first lunarfall in the rugged polar terrain.
Luna-25 is the first moon probe made in modern Russia, entirely from domestic components. The USSR launched 24 official ‘Luna’ missions between September 1958 and August 1976.
The probe’s objective is to carry out scientific research in the southern polar region of the moon. Luna-25 is equipped with instruments for analyzing the lunar soil, plasma and dust components for the presence of rare minerals. The designated lunarfall site is near the Boguslavsky Crater and the mission is scheduled to run for one year.
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According to Roscosmos, the crucial first phase of the mission will take nine minutes, from liftoff to the third-stage separation of the Fregat module, carrying the probe. The module is supposed to fire the main engine twice to set Luna-25 on a flight path to the moon.
The flight itself is supposed to take five days, with two trajectory corrections along the way. The last phase will take about three days and set the probe on a circumpolar orbit at the altitude of around 100 kilometers. In the fourth phase, Luna-25 would switch to an elliptical landing orbit with a minimum altitude of 18 kilometers and carry out a soft landing in the south polar region.
India hoped to be the first to land in the polar mountains, in September 2019, but the Vikram lander of the Chandrayaan-1 probe lost connection and crashed. The Chandrayaan-3 mission, launched in July, is already in lunar orbit and aims for a polar landing by August 23.
The Soviet Unions’ space program notched a number of historic firsts with the Luna probes. Luna 1 became the first spacecraft to leave the earth-moon system, in January 1959. In September that year, Luna 2 became the first manmade object to reach the moon. Luna 9 performed the soft soft landing in February 1966, and Luna 10 became the moon’s first artificial satellite that March.
Though lagging behind the Soviets in orbital exploration, the US claimed the first manned landing on the moon, with Apollo 11 in July 1968. The Apollo program was discontinued in December 1972. The last Soviet lunar mission, Luna 24, returned samples of lunar soil to earth for study in August 1976.
