What are luminous objects formed by the condensation of interstellar gas?

What are luminous objects formed by the condensation of interstellar gas?

• A. Asteroids
• B. Planets
• C. Stars
• D. Comets

Answer: (C)

When interstellar gas condenses and collapses under gravity, it can form a dense core that heats up as it contracts. If the core becomes hot enough, hydrogen fusion starts, releasing a tremendous amount of energy. That energy escapes as light and other radiation, making the object luminous. This process creates a star. Other objects like asteroids and planets form from solid particles in a disk around a young star, not from the condensation of gas into a fusion-powered glow, and comets are icy bodies from the outer regions that glow mainly by reflecting sunlight. So the luminous object formed by the condensation of interstellar gas is a star.

When interstellar gas condenses and collapses under gravity, it can form a dense core that heats up as it contracts. If the core becomes hot enough, hydrogen fusion starts, releasing a tremendous amount of energy. That energy escapes as light and other radiation, making the object luminous. This process creates a star. Other objects like asteroids and planets form from solid particles in a disk around a young star, not from the condensation of gas into a fusion-powered glow, and comets are icy bodies from the outer regions that glow mainly by reflecting sunlight. So the luminous object formed by the condensation of interstellar gas is a star.