The 14 quiz questions
Question 1 : What is the largest planet in the solar system?
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Explanation: Jupiter est si massive qu'elle pourrait contenir plus de 1300 Terres, avec un diamètre 11 fois supérieur à celui de notre planète. Sa masse représente 2,5 fois celle de toutes les autres planètes réunies ! C'est une géante gazeuse composée principalement d'hydrogène et d'hélium.
Question 2 : How many planets does our solar system officially have?
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Explanation: Depuis 2006, le système solaire compte 8 planètes : Mercure, Vénus, Terre, Mars, Jupiter, Saturne, Uranus et Neptune. Pluton a été reclassée en "planète naine" par l'Union Astronomique Internationale.
Question 3 : What are Saturn's rings mainly made of?
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Explanation: Les anneaux de Saturne sont composés de milliards de morceaux de glace et de roches, allant de la taille d'un grain de sable à celle d'une maison.
Question 4 : What type of star is our Sun?
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Explanation: The Sun is a yellow dwarf (G-type star). It is a medium-sized star that is about 4.6 billion years old.
Question 5 : What is the name of Earth's only natural satellite?
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Explanation: The Moon is the 5th largest satellite in the solar system and Earth's only natural satellite. Located 384,400 km away, it influences tides and remains the only celestial body where humans have walked (1969).
Question 6 : What is the hottest planet in the solar system?
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Explanation: Venus is hotter than Mercury (462°C) despite being farther from the Sun, due to its extreme greenhouse effect.
Question 7 : What is Jupiter's Great Red Spot?
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Explanation: The Great Red Spot is an anticyclonic storm that has lasted for at least 400 years. It is so large it could contain Earth!
Question 8 : Which planet rotates "on its side" (98° tilt)?
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Explanation: Uranus is unique because it rotates almost on its side, probably due to a collision with an Earth-sized object.
Question 9 : Between which planets is the main asteroid belt located?
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Explanation: The asteroid belt contains millions of space rocks. It marks the boundary between the rocky planets and the gas giants.
Question 10 : What is Pluto's current status in our solar system?
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Explanation: In 2006, the IAU reclassified Pluto as a "dwarf planet" because it hasn't "cleared" its orbit of other objects in the Kuiper Belt.
Question 11 : Which moon of Jupiter could harbor life beneath its icy surface?
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Explanation: Europa has an ocean of liquid water beneath its ice crust. It is one of the most promising places to search for extraterrestrial life.
Question 12 : What is the approximate distance between Earth and the Sun?
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Explanation: This distance, called an "astronomical unit" (AU), is about 150 million km. Sunlight takes 8 minutes to reach us.
Question 13 : Which planet is closest to the Sun?
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Explanation: Mercure orbite à seulement 58 millions de km du Soleil. Une année mercurienne ne dure que 88 jours terrestres. C'est aussi la plus petite planète du système solaire. Malgré sa proximité avec le Soleil, ce n'est pas la plus chaude : Vénus, avec son effet de serre, détient ce record.
Question 14 : Which space probe launched in 1977 is the most distant human-made object from Earth?
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Explanation: Voyager 1 left the solar system in 2012 and is more than 24 billion km from Earth. It carries a golden record with sounds from our planet.
