It was November 12, 2014, at 5:03pm. Humanity had just accomplished a feat that will forever mark its history. Philae, the miniature laboratory integrated into the Rosetta probe, landed softly on comet 67P Chourioumov-Guérassimenko, better known as Tchouri. The culmination of a project decided twenty-one years earlier, in 1993, by the European Space Agency - the first to display the immense ambition of landing on one of these bodies made of ice and dust, archives of the solar system's infancy. To achieve this, it took years of preparation, a decade-long flight, six billion kilometers flown, thousands of scientists and engineers involved... Astrophysicist Anny-Chantal Levasseur-Regourd sums it all up: "From this mission, we hope - and can reasonably expect - to understand the origin of the solar system and how life appeared on Earth.

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The 1960s was an extraordinary time for the United States. Unburdened by post-war reparations, Ameri...

The superhero Starman is sent by the Emerald Planet to protect Earth from belligerent aliens from th...

Horizon visits state-of-the-art laboratories and uses CGI to recreate the science-fiction-worthy wea...

William Shatner presents a light-hearted look at how the "Star Trek" TV series have influenced and i...

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Join the Mars rovers Spirit and Opportunity for an awe-inspiring journey to the surface of the myste...

National Geographic and NASA are sending you into space - live! For the first time ever, board the I...

An epic journey around Mars — built from real satellite and rover data — revealing the red planet as...

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The posse meet three cat clerics who worship Lister as their God. Lister vows to help them as they'r...