- The Sun is the star at the center of the Solar System. It is a massive, hot ball of plasma, inflated and heated by energy produced by nuclear fusion reactions at its core. Part of this internal energy is emitted from its surface as light, ultraviolet, and infrared radiation, providing most of the energy for life on Earth.
- TokTok (Wikipedia)
TikTok, whose mainland Chinese counterpart is Douyin (Chinese: 抖音; pinyin: Dǒuyīn; lit. ‘Shaking sound’), is a short-form video hosting service owned by ByteDance. It hosts user-submitted videos, which can range in duration from 3 seconds to 10 minutes.