Gure eguzkia erraldoi gorri bihurtuko denean...
Sydneyko Unibertsitateko astronomo talde batek Nature aldizkarian argitara eman duenaren arabera, izar erraldoi gorriak zein motakoak diren zehazteko teknika berritzailea garatu dute.
Erraldoi gorriak erretzen duten erregaiaren arabera sailkatzen dira multzo batean ala bestean. Helioko nukleoa erretzen duten bitartean erraldoi gazteak direla uste da, eta izarra inguratzen duen atmosferako hidrogenoa erretzen hasten direnean, erraldoi zaharrak. Bigarren motakoak, azken fasean daudenean, izugarri handitzen dira, eta inguruan duten guztia kiskaltzen dute desagertu aurretik. Gure eguzkiaren kasuan, uste da oraindik beste 12.000 milioi urtetan iraungo duela orain arte bezala, baina hortik aurrera gero eta gehiago handituko da.
Hazkunde horretan diametroa 100 aldiz handiago bihurtuko dela estimatzen da, eta Merkurio, Artizarra eta Lurra jango dituela ere bai.
Ikerketa hau egiteko ezinbestekoa izan da Kepler zundak bidalitako informazioa.
They were all in food and drink, seemingly cheerful, but some were nervous between snacks and appetizers. He would receive the prize for the second time, but he would be the first to have it in his hands. And I was nervous because the reminder had to get to the office, damn it.... [+]
Even if things change quickly and vividly, some things don’t change: The Light Awards event is one of them. This is what an outside journalist who has come to this chronicler in need has told him, along with the fact that LUZ has changed a lot before the awards ceremony... [+]
Irureta Azkun made an appointment on behalf of the LAR team:
"One of the thousands who make up the LUZ community has recently told us that sometimes LUZ is dark, that there is hard news that moves it inside. That we're doing a good job, but the bad news is knocking his throat... [+]
