What is the name of the theoretical boundary around a black hole beyond which nothing can escape its gravitational pull?

Which moon of Jupiter is known for its smooth, icy surface with numerous cracks and fractures, resembling a broken eggshell?

What is the term for the region around a planet where its magnetic field influences charged particles, often creating auroras?

Which moon of Saturn is known for its geysers of water vapor erupting from its icy surface?

What is the term for a region in space where gravitational forces cause small objects to collect, potentially forming a planet?

What is the largest planet in our solar system?

What is the term for the process by which a river deposits sediment as it loses energy, often forming a fan-shaped landform?

What is the term for the process by which rocks are physically broken into smaller pieces without changing their composition?

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

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