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Space Exploration Solar System This Day in Science, Technology, Astronomy, and Space Exploration History

ESA’s Giotto became the first spacecraft to use Earth for a gravity assist on July 2, 1990

On July 2, 1990, European Space Agency’s (ESA) Giotto spacecraft performed the first-ever earth gravity-assisted maneuver to be retargeted for its destination, Comet P/Grigg-Skjellerup.

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Space Exploration Solar System This Day in Science, Technology, Astronomy, and Space Exploration History

Cassini entered Saturn’s orbit on July 1, 2004

NASA’s Cassini space probe entered Saturn’s orbit on July 1, 2004, and became the first spacecraft to orbit the ringed planet.

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Space Exploration This Day in Science, Technology, Astronomy, and Space Exploration History

Soyuz 11 Disaster: the only three humans who died in space [June 29, 1971]

On June 29, 1971, after completing its record-breaking 20th day in orbit, the crew of Soyuz 11, Georgy T. Dobrovolski (Commander), Viktor I. Patsayev, and Vladislav N. Volkov departed from the Salyut 1 space station, the first space station in the history of space exploration, on June 29, 1971. Unfortunately, the mission ended in disaster when the crew capsule depressurized during preparations for re-entry. The cosmonauts rapidly lost consciousness as the pressure continued to drop and died within two minutes.

Dobrovolski, Patsayev, and Volkov still remain the only humans to have died in space (above the Kármán Line, see notes 1).

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Solar System Space Exploration This Day in Science, Technology, Astronomy, and Space Exploration History

Charon, Pluto’s Moon was discovered on June 22, 1978

On June 22, 1978, Pluto’s moon Charon was discovered by United States Naval Observatory astronomer James Christy (born September 15, 1938).

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This Day in Science, Technology, Astronomy, and Space Exploration History Space Exploration

V-2 rocket (MW 18014) became the first human-made object in space on June 20, 1944

On June 20, 1944, a German A-4/V-2 rocket became the first human-made object to travel into space by crossing the Kármán line with the vertical launch of MW 18014, attaining an apogee of 176 kilometers (109.3 miles). The Kármán line commonly represents the boundary between the Earth’s atmosphere and outer space. It lies at an altitude of 100 kilometers (62 miles) above the Earth’s sea level.

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Mars Astrobiology Solar System Space Exploration This Day in Science, Technology, Astronomy, and Space Exploration History

Viking 1 Entered Mars Orbit on June 19, 1976

On June 19, 1976, NASA’s Viking 1 Orbiter was inserted into Mars orbit. Both Viking 1 and Viking 2 spacecraft were consisting of an orbiter and a lander.

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Space Exploration This Day in Science, Technology, Astronomy, and Space Exploration History

Sally Ride became the first American woman in space on June 18, 1983

On June 18, 1983, Space Shuttle Challenger and the STS-7 crew launched from NASA’s Kennedy Space Center, Florida. With the launch, one of the mission specialists, Sally Ride became the first American woman to fly in space.

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Space Exploration This Day in Science, Technology, Astronomy, and Space Exploration History

Valentina Tereshkova became the first woman in space on June 16, 1963

On June 16, 1963, aboard the Vostok 6 spacecraft, Soviet cosmonaut Valentina Tereshkova became the first woman in space. She made 48 orbits around Earth and spent 2 days, 22 hours, and 50 minutes in space.

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Space Exploration Solar System This Day in Science, Technology, Astronomy, and Space Exploration History

Pioneer 10 became the first spacecraft to pass beyond the orbit of Neptune on June 13, 1983

On June 13, 1983, Pioneer 10 became the first spacecraft to pass beyond the orbit of Neptune. So, it is the first spacecraft to pass beyond all the solar system planets.

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Space Exploration Solar System This Day in Science, Technology, Astronomy, and Space Exploration History

Venera 4 was launched on June 12, 1967

On June 12, 1967, the Soviet Union launched Venera 4, which means “Venus 4” in English, a probe in the Soviet Venera program for the exploration of the planet Venus. It became the first successful probe to perform in-place analysis of the environment of another planet.