National Aeronautics and Space Administration (Português)National Aeronautics and Space Administration (Português)
a spiral galaxy in the Hubble Ultra Deep Field image. (Credit: NASA, ESA, S. Beckwith (STScI) and the HUDF Team) a galaxy is a large group of stars, gas, and dust bound together by gravity. O nosso sistema solar reside na Via Láctea, uma galáxia espiral que faz parte de