Which term describes a large collection of stars held together by gravity?

Which term describes a large collection of stars held together by gravity?

• A. Galaxy
• B. Gravitational forces
• C. Lunar
• D. Nebula

Answer: (A)

A galaxy is a large collection of stars bound together by gravity. Gravity holds not only the stars in place but also gas, dust, and dark matter, shaping the structure of the system over vast distances. That’s why a galaxy stands out as the term for these immense, bound collections rather than just a single star or a simple object. The other terms describe either forces (gravitational forces), a single body related to Earth's Moon (lunar), or a cloud of gas and dust where stars may form (nebula), none of which denotes a bound, multi-star system on the scale of a galaxy. So the correct term for a vast collection of stars held together by gravity is galaxy.

A galaxy is a large collection of stars bound together by gravity. Gravity holds not only the stars in place but also gas, dust, and dark matter, shaping the structure of the system over vast distances. That’s why a galaxy stands out as the term for these immense, bound collections rather than just a single star or a simple object. The other terms describe either forces (gravitational forces), a single body related to Earth's Moon (lunar), or a cloud of gas and dust where stars may form (nebula), none of which denotes a bound, multi-star system on the scale of a galaxy. So the correct term for a vast collection of stars held together by gravity is galaxy.