People of the Revolution and the USSR

Soviet Union Soviet communism 1929–2021 ○ Natural causes

The father of Soviet cardiology who ran Kremlin medicine for 20 years

“Nuclear war, unless it is prevented, would lead to the extinction of life on Earth and possibly in the Universe. Can we take such a risk?” — Nobel lecture, Oslo, 1985

Yevgeny Chazov was a Soviet cardiologist who pioneered thrombolytic therapy for myocardial infarction and oversaw Kremlin medicine for twenty years, treating successive leaders from Brezhnev to Chernenko. In 1980 he co-founded International Physicians for the Prevention of Nuclear War with American cardiologist Bernard Lown, receiving the 1985 Nobel Peace Prize, a rare Cold War collaboration across the blocs.

Soviet Union Soviet communism 1930–2009 ○ Stroke

Cosmonaut No. 4, Vostok 4 pilot of the first simultaneous crewed spaceflight

At Korolev's request during the flight, he sang the Ukrainian folk song 'I gaze at the sky and ponder a thought,' the first human song ever performed in space.

The fourth Soviet cosmonaut and the first Ukrainian in space, he served as capcom for Gagarin's Vostok 1 flight. In August 1962 he piloted Vostok 4 alongside Andriyan Nikolayev's Vostok 3 in the world's first simultaneous crewed orbital flight; the two craft came within 6.5 km of each other, and Popovich performed the first musical piece in space, a Ukrainian folk song. In 1974 he commanded Soyuz 14, docking with the first military crewed space station Almaz (Salyut 3), and became twice a Hero of the Soviet Union.

Soviet Union Soviet communism 1930–2016 ○ Natural causes

The last chairman of Soviet state science policy and a uranium geologist

Receiving the Global Energy Prize in 2009 he observed: "The Earth has always alternated between cold and warm periods, and humans have lived through only a very short moment on the geological time scale."

Soviet geologist and science administrator. His work on uranium deposits across Central Asia and Russia established the resource base for the Soviet nuclear fuel cycle, and in the final perestroika years he served simultaneously as chairman of the State Committee for Science and Technology (GKNT) and Deputy Chairman of the USSR Council of Ministers: the last person to direct Soviet science and technology policy. As Vice President of the Soviet and then Russian Academy of Sciences from 1988 to 2013, he led the Earth sciences section and became a leading authority on radioactive waste disposal and Arctic research. He authored over 700 scientific papers and 28 monographs.

Soviet Union Soviet communism 1930–2019 ○ Natural causes

Communist physicist whose semiconductor heterostructures opened the IT era

Demonstrating Russia's social stratification in the 2000s, he held up a wine glass and said: 'The contents of this glass belong — alas! — to just ten percent of the population. And the stem that holds the glass is the rest of the population.'

Zhores Alferov was a Soviet applied physicist who pioneered semiconductor heterostructure physics and built the first continuous-wave room-temperature semiconductor laser in 1968, laying the physical foundation for fiber-optic communication, CDs, and barcode readers. For this work he received the Nobel Prize in Physics in 2000. As director of the Ioffe Institute from 1987, chairman of the St. Petersburg Scientific Center from 1989, and vice-president of the USSR and Russian Academy of Sciences, he preserved Russia's basic science through the collapse of the Soviet Union. He served in the State Duma from 1995 on the Communist Party list, defending science funding and fiercely opposing the 2013 Academy reforms. Named after Jean Jaurès, he remained a communist all his life while leading one side of the Cold War's optoelectronics race.

Soviet Union Soviet communism 1931–1995 ○ Radiation-related illness

The deputy chief engineer who supervised the Chernobyl safety test and later argued the reactor's design was the real cause

The reactor protection system designed to stop the fission in an emergency situation played the role of atomic bomb detonator.

Born into a poor family in Siberia, he ran away from home at 14, trained at the Norilsk technical school, and graduated with honors from the Moscow Engineering and Physics Institute. He spent fourteen years installing naval nuclear reactors at a shipyard in the Soviet Far East before moving to Chernobyl in 1973, where he became deputy chief engineer in charge of Units 3 and 4. On 26 April 1986 he supervised the safety test at Unit 4 that ended in disaster; he insisted design flaws caused the accident but was convicted in 1987 and sentenced to ten years, released early in 1990 on health grounds. From prison he wrote to expose the RBMK's structural defects and authored Chernobyl: How It Was; the 1992 IAEA advisory report partly vindicated his argument.

Soviet Union Soviet communism 1933–2023 ○ Natural causes

The most qualified female cosmonaut candidate, grounded by politics

She told Tereshkova, 'The Komsomol and the party have irreparably spoiled you,' Kamanin recorded in his diary.

A Moscow Aviation Institute graduate and the only pilot among the five women selected for the cosmonaut corps in 1962, she scored highest on her final exams, and medical director Yazdovsky ranked her first for flight. But Kamanin recorded her independent manner as 'arrogance,' her smoking and drinking as 'moral instability,' and Korolev told her a working-class woman was needed for the flight, so Tereshkova was chosen. She later trained for an all-female Voskhod mission with a spacewalk, but the program was cancelled, and she never flew.

Soviet Union Soviet communism 1934–1966 ✕ Suicide

Gagarin's second backup, the cosmonaut ranked third for the first flight who never reached orbit

On 18 February 1966, the note he left his wife before leaving home: "Zinok! You were always the best. You'd have to search to find a woman like you. Forgive me."

In January 1961 the State Commission ranked the first-flight candidates: Gagarin, Titov, Nelyubov. He was the second backup for Vostok 1 and later trained as backup for the Vostok 3/4 dual flight, but in March 1963 a clash with a military patrol at Chkalovskaya station (drunk, and refusing to apologize) cost him his place in the cosmonaut corps. Exiled to a fighter unit in the Far East, he fell into alcoholism and depression; on 18 February 1966 he stepped in front of a train, aged thirty-one. His existence was kept secret until glasnost, his image airbrushed from the 'Sochi Six' photograph and his name erased from official histories.

Soviet Union Soviet communism 1934–1968 ✕ Killed in crash

The first human smile to leave the Earth

Re-entry: the capsule engulfed in 3,000-degree plasma, ten Gs pressing on his body. Inside, Gagarin whistled — Shostakovich's "The Motherland Hears, The Motherland Knows." He later wrote in his autobiography: "I sang that song the whole way down to Earth."

A collective-farm carpenter’s son circled the planet in 108 minutes on April 12, 1961: “Poyekhali!”, let’s go. In the middle of the Cold War he became the one man both camps loved. Training for a return to space, he died in a MiG crash in 1968. He was thirty-four.

Soviet Union Soviet communism 1934–2019 ○ Natural causes

First to open the door to the cosmos, and the first to draw it from inside

"It was so quiet I could even hear my heart beat. I was surrounded by stars and was floating without much control." — the first human to walk in space, 18 March 1965.

A Siberian miner's son, Leonov became the first human to walk in space on 18 March 1965, floating outside Voskhod 2 for twelve minutes, and nearly dying when his suit ballooned so badly he had to bleed oxygen to squeeze back into the airlock. He was also the first artist in space, sketching an orbital sunrise with coloured pencils tethered together in weightlessness. A decade later, as commander of Soyuz 19, he led the Soviet half of the Apollo-Soyuz Test Project (the first US-Soviet docking in orbit) and forged a lifelong friendship with American commander Thomas Stafford. From 1976 to 1982 he served as deputy director of the Yuri Gagarin Cosmonaut Training Center and chief cosmonaut, overseeing the next generation. Twice Hero of the Soviet Union and a major general of aviation, he produced over 200 space-themed paintings across a life that fused exploration with art.

Soviet Union Soviet communism 1934–2019 ○ Natural causes

The cosmonaut who spent five days alone in orbit, setting a solo spaceflight record that still stands

On 18 June 1963, while Vostok 5 was still orbiting, the Party Central Committee reviewed his application and admitted him as a full member without a candidate period.

Soviet cosmonaut, the fifth to fly in space. Launched on 14 June 1963 aboard Vostok 5, he orbited Earth 81 times over nearly five days, setting a solo space endurance record that still stands. The original Vostok plan called for two women to fly simultaneously, but the mission was restructured as one woman and one man: Bykovsky launched two days before Valentina Tereshkova. He went on to command Soyuz 22 (1976) and Soyuz 31 (1978) with East Germany's first cosmonaut Sigmund Jähn, becoming the only Vostok/Voskhod-era cosmonaut to complete three spaceflights.

Soviet Union Soviet communism 1935–2020 ○ Natural causes

Khrushchev's son and Chelomei's guidance-system engineer

During the Apollo 11 Moon landing in 1969, Khrushchev tried to watch the historic moment through a telescope from Ukraine — with a KGB officer at his side.

Soviet rocket engineer and computer scientist. The son of Nikita Khrushchev, he developed guidance systems for cruise missiles and the Proton space booster at Vladimir Chelomei's OKB-52 design bureau, contributing to submarine-launched missiles, military spacecraft, Moon vehicles, and the Proton booster. At age 28 he was named a Hero of Socialist Labor and awarded the Order of Lenin in 1963. He later served as first deputy director of the Control Computer Institute (INEUM), and after moving to the United States in 1991 taught Cold War history and the Soviet space program at Brown University's Watson Institute while publishing several books on his father's era.

Soviet Union Soviet communism 1935–2021 ○ 10-year sentence 1988, served 5, freed 1991

The first director of Chernobyl who built the plant and was held responsible for its catastrophe

In the station courtyard I saw pieces of graphite under my feet, but I still could not imagine that the reactor had been destroyed.

Born in Tashkent as the eldest son of Russian workers, he studied energy engineering and built his career at thermal power plants. In 1970 he was appointed construction manager and first director of the Chernobyl Nuclear Power Plant, which he led for sixteen years; plagued by construction delays and defective materials, he submitted his resignation, but a Party supervisor tore it up. Dismissed immediately after the 1986 disaster, he was sentenced to ten years in 1988; after his release he continued working on Chernobyl liquidation until his death in Kyiv in 2021.

Soviet Union Soviet communism 1935–2024 ○ Natural causes

Soviet physicist who linked fusion science, Chernobyl, and nuclear disarmament

Less than a month after absorbing radiation at Chernobyl, Velikhov chaired an international meeting on nuclear test-ban verification — turning disaster into a disarmament opening.

Soviet physicist who pioneered plasma physics for controlled fusion and MHD power. His 1959 thesis discovered magnetorotational instability, now foundational to astrophysics; in 1962 he identified electrothermal instability. He led the Soviet controlled-fusion program from 1973 and was Vice-President of the USSR Academy of Sciences (1978–1991), bridging the Kurchatov Institute and the Academy. During Chernobyl (1986) he served as Gorbachev's science advisor for reactor containment, then led science diplomacy for nuclear disarmament. After the Soviet collapse he sustained the Kurchatov Institute and became founding chairman of ITER, building the framework for joint US-Soviet-European-Japanese fusion research.

Soviet Union Soviet communism 1936–1988 ✕ Suicide

The Kurchatov chemist who led science at Chernobyl, then left the full truth on tapes before hanging himself

"I did not lie in Vienna… but I did not tell the full truth."

Valery Legasov was a Soviet inorganic chemist and first deputy director of the Kurchatov Institute of Atomic Energy, who arrived at the Chernobyl disaster site on the evening of 26 April 1986 as the scientific leader of the government commission. He proposed dropping boron and sand into the burning reactor, spent a total of 60 days on site, and later presented a five-hour report to the IAEA in Vienna that drew international attention but stopped short of revealing the RBMK reactor's full design flaws. On 27 April 1988, the day after the disaster's second anniversary, he hanged himself in his Moscow apartment; the audio tapes he recorded beforehand exposed the cover-ups and systemic failures of the Soviet nuclear establishment and became a primary source for historians.

Soviet Union Soviet communism 1937–

Tereshkova's backup cosmonaut, the physically strongest candidate Kamanin judged too reserved for the spotlight

"We decided it was worth trying": after she and her fiancé, skydiving instructor Sergey Kiselev, discussed the secret-police recruitment offer at their favorite café until closing time.

A mechanical engineer and nationally ranked parachutist, she was one of five women selected in 1962 for the Soviet Union's first female cosmonaut group. She trained as Valentina Tereshkova's primary backup for the Vostok-6 flight; Nikolai Kamanin rated her the best physically among the candidates but judged her too introverted for the worldwide propaganda role the first woman in space would have to play. Later she prepared with Valentina Ponomaryova for what would have been the first all-female spacewalk on Voskhod, but the mission was cancelled; after the women's group disbanded in 1969, she spent her career as a researcher at the Cosmonaut Training Center and earned a Candidate of Psychological Sciences degree.

Soviet Union Soviet communism 1937–

The chief engineer who refused to believe the reactor was destroyed and kept pumping water into its ruins

He smashed his glasses and cut his wrists with the shards, forcing the court to postpone his trial.

Nikolai Fomin was a Soviet nuclear engineer who joined the Chernobyl plant in 1972 and rose to chief engineer in 1981. Arriving at the plant shortly after the April 26, 1986 explosion, he refused to accept reports that the reactor was destroyed and ordered water to be pumped into the wreckage of Unit 4 for hours, while sending a subordinate on a reconnaissance mission that delivered a fatal radiation dose. Arrested after the disaster, he was sentenced to 10 years but was released early after a pre-trial suicide attempt and subsequent confinement in a psychiatric hospital; he later worked at the Kalinin Nuclear Power Plant before retiring.

Soviet Union Soviet communism 1937–

The textile-worker 'Chaika,' first woman in space

At the launch pad: "Hey, sky! Take off your hat!" — quoting Mayakovsky, June 16, 1963.

The first woman to fly solo in space: aboard Vostok-6 in 1963, the textile-worker 'Chaika' orbited Earth 49 times over 71 hours alone, a symbol of proletarian women's liberation through science. Later became the first woman general in Russian military history.

Soviet Union Soviet communism 1951–1986 ✕ Killed in explosion

The first victim of Chernobyl, standing in the pump hall when the reactor exploded, his body never recovered

Seconds before the explosion, he called a fellow pump operator: "I need to recharge the lower feed for 22… Okay, come on. So it's shortened, one sec…" Those were his last words.

Born in Kropyvnia, Kyiv Oblast, he began working at the Chernobyl Nuclear Power Plant in 1973 and became a senior operator of the main circulation pumps (GCN) in the reactor shop of Unit 4. On the night of 26 April 1986, during a safety test, he was in the northern GCN pump hall when two explosions ripped through the reactor building; he was killed instantly, buried under the debris. His body was never recovered and is presumed entombed inside the Sarcophagus; a memorial plaque marks the dividing wall between Units 3 and 4.

Soviet Union Soviet communism 1953–1986 ○ Radiation exposure

Soviet nuclear engineer and Unit 4 shift supervisor who directed the response and died of radiation exposure

"I did everything correctly. I don't understand why it happened."

A Soviet nuclear engineer born in Novosibirsk, he graduated from the Moscow Power Engineering Institute in 1976, joined the Chernobyl nuclear power plant in September 1979 and became shift supervisor of Reactor Unit 4 on 10 July 1984. During the safety test on the night of 26 April 1986 he gave the order to shut down the reactor and the AZ-5 button was pressed at 01:23:39, though witness testimony differs on who physically pressed it. He remained at Unit 4 until about 8 a.m., calling the fire brigade and ambulance and having feedwater valves opened by hand, and absorbed a lethal dose of over 15 Gy. He died of acute radiation syndrome in Moscow Hospital No. 6 on 11 May 1986, aged 33, with some English-language sources recording 10 May; he was posthumously awarded the 3rd-degree Order For Courage in 2008.

Soviet Union Soviet communism 1960–1986 ✕ Radiation exposure

The 25-year-old senior reactor control engineer who pressed the AZ-5 button at Chernobyl's Unit 4

While studying control-rod documentation, Toptunov told his friend Sasha Korol that 'in certain circumstances, the rods could accelerate rather than slow the reaction': three months later, that insight became reality under his own finger on the AZ-5 button.

Leonid Toptunov was the Senior Reactor Control Engineer (SIUR) at Chernobyl's Unit 4, a 25-year-old technician at the control panel during the night of the 26 April 1986 disaster. Only three months into independent duty and facing his first shutdown, he pressed the AZ-5 emergency shutdown button under pressure from deputy chief engineer Anatoly Dyatlov, but a design flaw in the RBMK control rods caused a reactivity surge that triggered the explosion; he returned to the control room afterward to manually open water supply valves, absorbing a lethal 1,300 rem before dying in a Moscow hospital on 14 May.