@SnoopJ @aburka
i think neither:
”The reverse side of Europa Clipper’s vault plate, featuring a handwritten poem by US Poet Laureate Ada Limón, the Drake Equation handwritten by astrophysicist Frank Drake, a drawing of the Jovian system, a tribute to planetary scientist Ron Greeley, and the radio emission lines known as the Water Hole’’
A hint to call on these numbers:
"These frequencies fall between the hydrogen emission line at 1420 megahertz and the hydroxyl line at 1660-1666 megahertz."
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