What is the process by which a star, much larger than our Sun, ends its life in a massive explosion?

What is the term for the point in a planet's orbit where it is closest to the Sun?

Which star, known as the North Star, is often used in navigation due to its proximity to the celestial north pole?

What is the function of the lymphatic system in the human body?

What is the name of the theory that explains the origin of the universe, suggesting an initial singularity followed by rapid expansion?

What is the function of the gallbladder in the digestive system?

Which moon of Neptune is the coldest known object in our solar system, with surface temperatures close to absolute zero?

Which of the following is an example of a non-contact force?

What is the term for a large, dome-shaped mass of ice that flows outward in all directions, often found in polar regions?

What is the process of a substance changing from a gas to a liquid called?