{"product_id":"forever-stamps-2021-sun-science-educational-nature-series-first-class-postage","title":"Forever Stamps 2021 Sun Science – Educational Nature Series, First-Class Postage","description":"\u003cp\u003e\u003cstrong\u003eFirst Day of Issue:  \u003c\/strong\u003eJune 18, 2021\u003cbr\u003e\u003cstrong\u003eFirst Day City:  \u003c\/strong\u003eGreenbelt, Maryland\u003cbr\u003e\u003cstrong\u003ePrinted by:  \u003c\/strong\u003eBanknote Corporation of America\u003cbr\u003e\u003cstrong\u003ePrinting Method:  \u003c\/strong\u003eFlexographic, Foil Stamping\u003cbr\u003e\u003cstrong\u003eFormat:  \u003c\/strong\u003ePanes of 20\u003c\/p\u003e\n\u003cp\u003eThe stamp was issued to showcase the powerful and mysterious science behind our sun’s functioning.\u003c\/p\u003e\n\u003cp\u003eThe design features colorized images from NASA’s Solar Dynamics Observatory of a coronal hole, representing the sun in extreme ultraviolet light.\u003c\/p\u003e\n\u003cp\u003eThe First Day of Issue Ceremony took place at the Greenbelt Main Post Office due to the closure of the NASA Goddard Space Flight Center on the Juneteenth Federal Holiday.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eOur 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.\u003c\/p\u003e\n\u003cp\u003eG-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.\u003c\/p\u003e\n\u003cp\u003eWhile 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.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"100 Stamps (5 Sheets)","offer_id":53740259803454,"sku":"ST21-A17-5","price":19.99,"currency_code":"USD","in_stock":false},{"title":"300 Stamps (15 Sheets)","offer_id":53740259836222,"sku":"ST21-A17-15","price":54.99,"currency_code":"USD","in_stock":false},{"title":"500 Stamps (25 Sheets)","offer_id":53740259868990,"sku":"ST21-A17-25","price":89.99,"currency_code":"USD","in_stock":false},{"title":"1000 Stamps (50 Sheets)","offer_id":53740259901758,"sku":"ST21-A17-50","price":149.99,"currency_code":"USD","in_stock":false},{"title":"5000 Stamps (250 Sheets)","offer_id":53740259934526,"sku":"ST21-A17-250","price":699.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/0399\/5454\/files\/C6630A86-5737-63E6-0768-F4FEDB5689CD-1-1-800x800.webp?v=1781280759","url":"https:\/\/karmamindset.com\/products\/forever-stamps-2021-sun-science-educational-nature-series-first-class-postage","provider":"Karma Mindset","version":"1.0","type":"link"}