Question 1:

Which space agency launched the Mars rovers Spirit and Opportunity?

Explanation: The space agency that launched the Mars rovers Spirit and Opportunity is "NASA" (National Aeronautics and Space Administration). The twin rovers were part of NASA's Mars Exploration Rover Mission.

Question 2:

Which spacecraft was the first to successfully land humans on the Moon?

Explanation: The spacecraft that was the first to successfully land humans on the Moon is "Apollo 11." The Apollo 11 mission, launched by NASA, carried astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins and made history by landing the first humans on the lunar surface.

Question 3:

Which planet did the Cassini-Huygens mission primarily explore?

Explanation: The Cassini-Huygens mission primarily explored the planet "Saturn." It was a joint mission by NASA, ESA, and the Italian Space Agency (ASI) and provided detailed insights into Saturn's atmosphere, rings, and moons.

Question 4:

Which mission successfully landed a probe on a comet's surface?

Explanation: The mission that successfully landed a probe on a comet's surface is the "Rosetta" mission. The European Space Agency's Rosetta spacecraft deployed the Philae lander on the comet 67P/Churyumov-Gerasimenko in 2014, providing valuable data about comets.

Question 5:

Which rover is part of NASA's Mars 2020 mission?

Explanation: The rover that is part of NASA's Mars 2020 mission is "Perseverance." Perseverance, also known as the Mars Rover Perseverance, was launched in 2020 and is designed to explore the Martian surface, search for signs of ancient microbial life, and collect samples for potential return to Earth.