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2019 - The United States Space Force (USSF) was established as the sixth independent branch of the U.S. Armed Forces.

1998 - The first components of the ISS were launched, a joint project among five space agencies: NASA, Roscosmos, JAXA, ESA, and CSA.

2021 - NASA's Perseverance rover successfully landed on Mars, tasked with searching for signs of ancient life and collecting samples.

2021 - The James Webb Space Telescope, intended to succeed the Hubble Space Telescope, was launched into space.

2012 - The Mars Science Laboratory mission's rover Curiosity landed on Mars, designed to explore the Gale Crater as part of NASA's Mars Exploration Program.

2020 - China's Chang'e 5 mission successfully returned samples from the Moon to Earth, the first lunar sample-return mission since 1976.

2011 - NASA's Space Shuttle Program completed its final mission, STS-135, before being officially retired.

2021 - Axiom Space's Ax-1 mission was the first all-commercial astronaut crew to visit the International Space Station (ISS).

1957 - The Soviet Union launched Sputnik 1, the first artificial satellite, marking the beginning of the space age.

1969 - Apollo 11 mission successfully landed the first humans on the Moon, with astronauts Neil Armstrong and Buzz Aldrin.

1981 - The Space Shuttle program's first mission, STS-1, launched, marking the first use of reusable spacecraft.