Le galassie cambiano forma con l’età. Un gruppo internazionale di studiosi cha stabilito che se esse sono perfettamente rotonde nei primi anni di vita, tendono a diventare ovali con il passare del tempo.
Le osservazioni celesti odierne e risalendo nel tempo grazie ai telescopi Hubble e Herschel, provano i mutamenti delle galassie. Almeno stando ai risultati della ricerca condotta da un équipe di ricercatori diretta da astronomi dell’università inglese di Cardiff che è stata in grado di stabilire che i corpi celesti, dal big bang, hanno cambiato forma.
Realizzando lo studio in questione, pubblicato sulla rivista scientifica "Monthly Notices" della Royal Astronomical Society, i ricercatori hanno osservato circa 10'000 galassie e le hanno classificate in due gruppi : quelle in forma di disco in rotazione (come la Via Lattea) e quelle ellittiche in forma ovale con movimenti stellari disordinati.
Red.MM/ATS/Swing
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