Researchers have been investigating the origin of the beautiful rings of saturn for some time. More than one hypothesis has been made, but so far ignorance has prevailed. Researchers from a Nice observatory have recently launched two hypotheses. According to one of them, the rings formed when a large object beyond Neptune reached the saturn ice layer and destroyed it in millions of fragments. The other hypothesis is that the rings are made up of millions of fragments scattered around the planet after an ice satellite, relatively close to Saturn, crashed into the planet.
Chão de Lamas-eko zilarrezko objektu sorta 1913an topatu zuten Coimbran (Portugal). Objektu horien artean zeltiar jatorriko zilarrezko bi ilargi zeuden. Bi ilargiak apaingarri hutsak zirela uste izan dute orain arte. Baina, berriki, adituek ilargietan egin zituzten motibo... [+]
James Webb teleskopioaren lehen irudiak eta datuak aurkeztu dituzte: unibertsoari inoiz ateratako argazkirik sakonenak eta exoplaneta baten espektroskopia-datu zehatzenak. “Kosmosaren ikuspegi berri eta iraultzaile bat”, Bill Nelson NASAko administratzailearen... [+]