Science · True or False?
The answer is True.
It loses mass because of nuclear fusion (it transforms matter into energy) and the solar wind (a stream of charged particles escaping its gravity), which is about 5.5 million tons per second in total. However this is negligible, since over its remaining 5-billion-year lifespan, the Sun will lose well under 0.1% of its total mass of 1.989 × 10^30 kg.