Which of the following celestial bodies can emit light on their own?
Sun
Alpha Centauri
Thiruvathira
Stars can emit light on their own. They emit light through a process called nuclear fusion. Nuclear fusion is a process where two or more nuclei combine to form an element with a higher atomic number. Fusion is the reverse process of nuclear fission. Fusion reactions power the stars releasing a huge amount of energy. In the below options except Venus, all are stars.