Artwork of the future sun, swollen to become a red giant star, as seen from a molten Earth landscape
2025-07-04 1232词 困难
For example, in its thermonuclear-driven core, the sun fuses about 700 million tons of hydrogen into 695 million tons of helium every second. The missing five million tons is converted into energy (via everyone’s favorite equation, E = mc2). This is enough energy, it turns out, to power a star. If you like mind-boggling numbers, the sun produces 4 x 1026 watts of power—400 trillion trillion watts. In other words, the energy our star emits in a single second is sufficient to satisfy humanity’s total consumption for about 650,000 years.
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