Solar System Quiz Questions! Ultimate Trivia

The Galilean moons are the four brightest moons that revolve around Jupiter. These moons were discovered by Galileo Galilei in 1610 and are named Io, Europa, Ganymede, and Callisto. They are easily visible from Earth with a small telescope or even binoculars. These moons are of great scientific interest as they have diverse geological features and potential for hosting life. Therefore, the correct answer is Jupiter.

a rotation, not a revolution occurs in approximately 24 hours

The correct answer is "rocky and terrestrial." The inner planets, also known as the terrestrial planets, are composed mainly of rock and metal. They are closer to the Sun and have higher densities compared to the outer planets. These planets include Mercury, Venus, Earth, and Mars. They have solid surfaces and are made up of materials such as silicates and metals. This is in contrast to the outer planets, which are mostly composed of gases and have lower densities.

Neil Armstrong took part in Project Apollo, which was a NASA program that aimed to land humans on the Moon. Armstrong was the commander of Apollo 11, the mission that successfully achieved this goal by landing the first humans on the Moon in 1969. Therefore, it is true that Neil Armstrong took part in Project Apollo.

Project Mercury happened first in the sequence of projects mentioned. It was the first human spaceflight program conducted by the United States. Launched in 1958, Project Mercury aimed to put a human in orbit around the Earth and gather scientific data about space travel. It laid the foundation for future space missions and paved the way for subsequent projects like Gemini and Apollo, which aimed for more ambitious goals such as lunar landings and long-duration spaceflights. The International Space Station, on the other hand, is a collaborative project involving multiple nations and was launched much later, in 1998.

A space probe is an unmanned spacecraft that is sent out to explore and gather data about celestial bodies such as planets, moons, and asteroids. Unlike a space shuttle, which carries astronauts and is designed for human space travel, a space probe is specifically designed for scientific research and data collection. It is equipped with various instruments and sensors to capture images, measure atmospheric conditions, analyze soil samples, and perform other experiments. Therefore, a space probe fits the description of being unmanned and sent out to gather data.