Correct Answer:
D. Jupiter
Our solar system is home to eight planets, each with unique characteristics, including varying sizes. Understanding the relative sizes of these celestial bodies is a fundamental concept in astronomy. The question asks to identify the largest planet among the given options, which requires basic knowledge of planetary facts.
- Jupiter is the correct answer. It is a gas giant and by far the largest planet in our solar system, both in terms of diameter and mass. Its diameter is approximately 140,000 kilometers (87,000 miles), making it more than twice as massive as all the other planets combined.
- Mercury is the smallest planet in our solar system, significantly smaller than Jupiter.
- Venus is often called Earth's 'sister planet' due to its similar size, but it is still much smaller than Jupiter.
- Earth, our home planet, is the fifth-largest planet but is dwarfed by the immense size of Jupiter.