Sun Science Forever Stamps, 2021 Sheet – Cards, Letters and Stamp Collecting

The Sun Science set includes 10 stamp designs, each picturing different sun details and phenomena. The colors represent different wavelengths, highlighting specific aspects of our sun.

Our Sun, classified as a G-type main-sequence star, has surface temperatures fluctuating from 5,300 to 6,000 degrees Kelvin, equivalent to 9,000 to 10,000 degrees Fahrenheit.

G-type main-sequence stars produce heat and energy through nuclear fusion in their cores. Our Sun transforms 600 million tons of hydrogen into helium every second, converting four million tons of matter into energy.

While nuclear reactors on Earth use fission, the massive cost of creating a productive nuclear fusion reactor remains a challenge for scientists. It emphasizes the value of the power generated by our sun.