An image taken by NASA's Spitzer Space Telescope of a glowing emerald nebula. Astronomers believe rings like this are actually sculpted by the powerful light of giant "O" stars. O stars are the most massive type of star known to exist.
quarta-feira, 22 de junho de 2011
Emerald nebula / Nebulosa esmeralda
Uma imagem feita pelo Telescópio Espacial Spitzer, da Nasa, mostra uma brilhante nubulosa esmeralda. Astrônomos acreditam que aneis como este são na verdade esculpidos pela poderosa luz de gigantescas estrelas "O". Estrelas O são o tipo mais massivo de que se tem conhecimento.
An image taken by NASA's Spitzer Space Telescope of a glowing emerald nebula. Astronomers believe rings like this are actually sculpted by the powerful light of giant "O" stars. O stars are the most massive type of star known to exist.
An image taken by NASA's Spitzer Space Telescope of a glowing emerald nebula. Astronomers believe rings like this are actually sculpted by the powerful light of giant "O" stars. O stars are the most massive type of star known to exist.
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