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Il grande protagonista nei cieli di questo Halloween è l'asteroide TB145, che "saluta" la terra da una distanza — di sicurezza — di 500'000 chilometri.
Le foto diffuse dalla NASA, l'ente spaziale statunitense, sono impressionanti: il corpo celeste — che misura 600 metri — assomiglia, di fatto, a un teschio: due cavità per gli occhi, un buco al livello del naso e una parte tondeggiante che ricalca la forma di un cranio.
L'istituto scientifico, nella nota, spiega che in realtà l'oggetto è una stella cometa "morta", che ha esaurito tutto il materiale volatile dopo innumerevoli passaggi vicino al Sole.
Per saperne di più: la pagina della NASA dedicata all'evento
AFP/px
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