su astronomia.com si parla di astrofisica, cosmologia e news sull'universo. e sul forum, ti aspettano tanti appassionati con telescopi ed esperienza.

views of the solar system presents a multimedia adventure unfolding the splendor of the sun, planets, moons, comets and asteroids. discover the history of space exploration, rocketry, early astronauts, space missions, and a large image/video archive.

nsf’s national optical-infrared astronomy research laboratory (nsf’s noirlab) is the preeminent us national center for ground-based, nighttime optical and infrared astronomy

the european space agency portal features the latest news in space exploration, human spaceflight, launchers, telecommunications, navigation, monitoring and space science.

nasa.gov brings you the latest news, images and videos from america's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.