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Cercetătorii au înregistrat semnale emise pe o frecvenţă de 40-50 milihertzi.
Ca să poată fi auzită de urechea umană, frecvenţa a fost mărită de 1.000 de ori.
Semnalele sunt provocate de o oscilaţie magnetică joasă. Această ar putea fi produsă de ionizarea particulelor neutre care provin din coada cometei.
Prelucrată, înregistrarea seamănă foarte mult cu o melodie.
Sursa: ABC Science
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