How Do We Know When Voyager Reaches Interstellar Space?

Whether and when NASA’s Voyager 1 spacecraft, humankind’s most distant object, broke through to interstellar space, the space between stars, has been a thorny issue. For the last year, claims have surfaced every few months that Voyager 1 has “left our solar system.” Why has the Voyager team held off … Seguir leyendo / Continue reading


PrintTwitterGoogle+TuentiLinkedInDeliciousMySpaceCompartir

Turning up the heat on Europe’s first sentinel

The first satellite for Europe’s new environmental monitoring programme is being put through some pretty harsh treatment to make sure that it can cope with the huge temperature changes as it orbits Earth. Satellite technology may appear delicate and complex, but not only does it have to survive the demands … Seguir leyendo / Continue reading


NASA’s Hubble Provides First Census of Galaxies Near Cosmic Dawn

Using NASA’s Hubble Space Telescope, astronomers announced Dec. 12 they have seen further back in time than ever before and have uncovered a previously unseen population of seven primitive galaxies that formed more than 13 billion years ago, when the universe was less than 3 percent of its present age. … Seguir leyendo / Continue reading


Cassini spots mini nile river on saturn moon

The international Cassini mission has spotted what appears to be a miniature extraterrestrial version of the Nile River: a river valley on Saturn’s moon Titan that stretches more than 400 km from its ‘headwaters’ to a large sea. It is the first time images have revealed a river system this … Seguir leyendo / Continue reading