Explanation

• Stars produce energy mainly through nuclear fusion in their cores.
• Hydrogen nuclei combine to form helium and release energy.
• The Sun also generates its energy through nuclear fusion.

Last verified on 11-11-2026

Explanation

• Our Solar System is located in the Orion Arm of the Milky Way galaxy.
• It including the Sun and eight planets.
• It consists of about 100–400 billion stars along with large amounts of gas and cosmic dust.

Additional information:

• The Milky Way is a spiral galaxy with a diameter of about 100,000 light-years.
• The nearest large galaxy to the Milky Way is Andromeda, located about 2.5 million light-years away.

Last verified on 11-03-2026

Explanation

• Mars is known as the Red Planet due to its reddish appearance.
• Its surface contains iron oxide (rust) which gives it a red color.
• It is the 4th planet from the Sun in the solar system.
• Mars has two small moons: Phobos and Deimos.
• Mars is often called the “planet of future exploration”.

Last verified on 11-11-2026

Explanation

• Einstein's mass-energy equivalence equation is E = mc².
• E represents energy, m represents mass, and c represents the speed of light in a vacuum.
• The equation shows that mass can be converted into energy and energy into mass.

Last verified on 11-11-2026

Explanation

• Fission is the process of splitting an atomic nucleus into smaller nuclei, releasing a large amount of energy.
• It is used in nuclear power plants and atomic bombs.

Last verified on 12-04-2026