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| ![]() | Launch of aE1 probe. Copyright © 2001 Anatoly Zak A backup copy of the E1 spacecraft, which was the first to escape Earth gravity. Click to enlarge. The E1A spacecraft. It differed from E1 by the position of the solar wind detectors. Those on the upper and lower hemisphere were at the same "longitude" on the E1 but 90 degrees apart on the E1A. The magnetometer boom was also different. Click to enlarge. The backup copy of the E3 spacecraft, which was the first to swing around the Moon and to photograph its dark side. A likely photo of an early E6 spacecraft in Tyuratam in August 1962. The E6 spacecraft.Click to enlarge: 300 by 400 pixels / 44 KB. Copyright © 2005 Anatoly Zak TheLuna-9 lander. Copyright © 2009, 2000 Anatoly Zak TheE6-S lunar-orbiting spacecraft in pr-launch configuration. Credit: NPO Lavochkin The E6-LF lunar orbiter. Credit: NPO Lavochkin The E8-5 lunar sample return spacecraft during prelaunch processing. Credit: NPO Lavochkin The ascent stage of the E8-5 spacecraft, which delivered soil samples from the lunar surface back to Earth. The reentry capsule of the E8-5 spacecraft in landing configuration. A full-scale prototype of the Lunokhod-1 rover, which landed on the surface of the Moon on Nov. 17, 1970. Copyright © 2009 Anatoly Zak Lunokhod-3, the unflown successor to the Lunokhod-1 and 2 rovers, which worked on the lunar surface. Copyright © 2000 Anatoly Zak The landing platform, which delivered automated lunar rovers on the surface of the Moon. The artist rendering of theE8-5M lunar sample return spacecraft on the surface of the Moon. Credit: NPO Lavochkin Luna-Glob would be the first Russian spacecraft heading to the Moon since mid-1970s.Click to enlarge. Copyright © 2008 Anatoly Zak | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The USSR pioneered the exploration of the Moon with the E series of robotic probes. They likely got their designation in the mid-to-late 1950s, when letters of the Russian alphabet were assigned to planned payloads of theR-7 intercontinental ballistic missile under development at the time, with letters A, B and V given to different types of nuclear warheads and the letterD reserved for the first satellite. Within the E series, several progressively complex missions were proposed:
From the late 1950s to 1965, the E-series were under development at the OKB-1 design bureau in Podlipki, after which all ongoing projects, starting with the E6 series were transferred to design bureau of the Lavochkin aviation plant in Khimki. :
*In the second column the table gives the name of the spacecraft as they were identified in the classified paperwork by their development centers, while the third column shows the name announced in the Soviet press. The missions which did not reach the orbit would not be acknowledged at all at the time. The spacecraft, which fail in low orbit would normally receive Cosmos name. **An 8K72 launcher is sometimes identified as Lunnik or Luna, 8K78 is also known as the Molniya launcher, both are based on Korolev'sR-7 ICBM. 8K82K (UR-500K) launcher is known today asProton. Note: This table does not includes missions conducted within theSoviet L1 and N-1/L-3 projects. Although all of them flew without crews, they tested hardware, which was developed with the goal of landing a piloted expedtion on the Moon. Assembly of the E6 lunar probe circa 1963. Like many official buildings and institutions in the USSR, the facility features the "red corner" (on the left) featuring "Udarniki of the Communist Labor" (best workers list) adorned with a portrait of the USSR founder Vladimir Lenin, a hammer and a sickle (symbol of the workers and peasants union in the class struggle) and... potted flowers! To mark the International Women's Day on March 8, operators of Lunokhod-1 drew an 8 with its wheels on the lunar surface in March 1971. Although the USSR virtually abandoned lunar exploration with the end of theMoon race in mid-1970s, Russian scientists still saw the Moon as an interesting target for exploration. During the 1980s, a lunar polar orbiter, LSN (1L), was one of several space missions proposed for a new spacecraft platform developed at NPO Lavochkin. However, at the time, the lunar mission lost in priority toMars-bound projects. Multi-phased program With the improvement of the Russian economy in thesecond post-Soviet decade, Russia started developing a multi-step program for the unmanned lunar exploration. According to that strategy, the first Luna-Glob lunar orbiter could be followed by a lander, which was initially known as Luna-Glob-2 and was later designatedLuna-Resurs. A standard lander developed for the Luna-Resurs project could be reused for further missions to the Moon and beyond. Luna-Resurs was expected to be followed by theLuna-Grunt dual mission, which would carry a rover and the ascent stage to return lunar samples back to Earth. Hardware developed for Luna-Glob, Luna-Resurs and Luna-Grunt missions could ultimately be used to establish the so-calledLunny Poligon (Lunar Range), featuring a series of stationary and movable facilities on the surface of the Moon. 2012: New plans, launch dates emerge Following thePhobos-Grunt fiasco in November 2011, a new Russian plan for unmanned lunar exploration had emerged by the beginning of 2012. Although launch dates of the upcoming missions had to be delayed in order to learn the lessons ofPhobos-Grunt, the unmanned lunar exploration program received a priority among planetary missions. Relative proximity of the Moon could enable Russian engineers to regain experience in navigating deep-space missions and rebuilt Soviet potential in planetary landing. A total of five launches were now planned, with an ultimate goal of delivering samples of the lunar soil back to Earth following a decade-long effort. The original Luna-Glob mission was split into alanding mission and anorbiter. 2014: Russian Moon missions face three-year delayBy 2014, unmanned lunar missions designed to revive Russia's troubled deep-space exploration program were postponed three years beoynd originally advertised dates. An official announcement of the nation's space science program at a major scientific summit in Moscow revealed significantly delayed launch dates for a trio of lunar probes. During the 40th assembly of the Committee on Space Research, COSPAR, in Moscow in August 2014, Lev Zeleny, the director of the Space Research Institute, IKI, revealed latest schedule for the Russian planetary exploration and space science program. Although allpreviously approved projects still remained on the table, the nation's series oflunar missions faced a domino effect of delays. 2019: Russia plans to reshape, extend its lunar robotic strategy With the start of the super-rocket program in Russia in 2018, the prime contractor in the development of Russian lunar probes drafted new long-term strategy for supporting human expeditions to the lunar surface. In the first week of July 2019, NPO Lavochkin presented its latest vision of the robotic lunar exploration program and outlined new mission concepts extending as far as two decades ahead. Planning begins for Luna-29 mission In the late 2010s, Russian engineers at NPO Lavochkin began early formulation work on the concept of the heavy Luna-29 lander which is expected to follow four smaller robotic missions to the surface of the Moon. The effort was part of awider plan to expand the Russianlunar exploration program and prepare human missions to our natural satellite. To that end, the new lander developed for the Luna-29 project could later serve as a platform for a cargo delivery system to the surface of the Moon. 2020: How sample return prepares human expeditions to the Moon In 2020, the Russian space industry continued the design of a multi-purpose lunar landing vehicle which was expected to start its flight career as a platform for a soil-sample return mission from the Moon, but later become a common carrier of cargo and even crews to the lunar surface. In the following two years, the developers advanced the project through numerous technical and organizational challenges. 2020: New Lunokhod is in the works for Luna-29 Russian engineers recently began work on a large lunar rover mission rivaling the famous Soviet Lunokhod. As of 2020, the Luna-29 mission was expected to deliver a large wheeled laboratory to the surface of the Moon before the end of the decade. Like its pioneering predecessor, the new rover was conceived at the NPO Lavochkin design bureau. 2020: Russian lunar sample return mission (Luna-28) at the crossroad In its original concept, Luna-28 was a part of the Luna-Grunt robotic soil-sampling mission designed to return lunar regolith from the polar region of the Moon back to Earth for scientific analysis. However, in 2020, the project was given the overarching task of serving as pathfinder for human expeditions. Luna-Grunt in 2021: Scientists push back against lunar program strategy By early 2021, Roskosmos planned to give the role of robotic pathfinder for human expeditions to the Moon to the Luna-28 sample-return spacecraft. According to the proposed strategy, a large lunar landing platform would travel to the Moon, testing crucial technologies for a subsequent human landing. But the idea did not sit well with Russian scientists. Russian lunar missions face new delays in 2023 On the heels of thesuccessful launch of theLuna-Glob (Luna-25) mission on Aug. 11, 2023, Head of Roskosmos Yuri Borisov said that the launch of theLuna-26 (Luna-Resurs Orbiter) spacecraft was then planned for 2027, followed byLuna-27 (Luna-Resurs Lander) in 2028 and byLuna-28 (Luna-Grunt) in 2030 or later. Despite being pushed back from the previous plans, these dates had to be considered very optimistic given the need for a complete overhaul of these projects in order to replace imported components and instruments, not to mention funding levels in the program.
Writing and photography by Anatoly Zak All rights reserved Last update: February 2, 2025 |
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