| This is a beautiful virtual reconstruction of the "Helix Nebula (NGC 7293). The movie represents a hypothetical space flight and highlights the "bubble" of gas in the spherical expansion. | |
also visit fables-and-filastrocche.blogspot.com 
| This is a beautiful virtual reconstruction of the "Helix Nebula (NGC 7293). The movie represents a hypothetical space flight and highlights the "bubble" of gas in the spherical expansion. | |
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