published on: 2016-02-21 21:17:14
Esplorando l’energia scura con i supercomputer
Gravitational waves from black holes detected - BBC News
spaaaaaceblog: The Colossal spiral galaxy NGC2841.Source
aerospaceage: Titan
n-a-s-a: This stamp featuring the Soyuz, Mercury, and Gemini
nasahistory: A beautiful picture of a windsock.