Answer:
Mass has been converted into energy.
Step-by-step explanation:
An object loses mass through a phenomenon known as mass defect. In nuclear physics, mass defect occurs when part of a nucleus disintegrates and is converted into energy. This mass defect is sometimes called fission or decay.
The concept was first proposed by Albert Einstein who related the mass, light and energy by this equation:
![E = mC^(2)](https://img.qammunity.org/2019/formulas/physics/high-school/7825wnt417ykazpuww28aycwo7q6b33zy7.png)
where m = mass lost
C = speed of light (3 × 10⁸ m/s)
This is the energy equation for calculating mass defect.
Therefore, the sun has less mass as a result of mass defect.