Gaia launch – Full replay

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Watch the full replay of the launch coverage of ESA’s billion-star surveyor Gaia. Liftoff occurred at 09:12UT/10:12CET on 19 December and the successful deployment of Gaia’s sunshield was confirmed approximately 90 minutes later. Gaia is now on its way to L2, where it will study the characteristics of 1 billion stars to create the most precise 3D map of our home galaxy, the Milky Way.

Credt: ESA / CNES / Arianespace

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7 Comments

  1. I'm also a daydreamer and I'm also hoping that there are other more technologically advanced daydreaming extraterrestrial civilizations whose members are willingly to be our cosmic friends.

  2. Where was this launched? I believe I heard someone say that the spent stages will fall into the atlantic ocean, but from anywhere in Europe, Africa, or Asia, the atlantic is to the west, and therefore a launch going over the atlantic would be retrograde, which is very inefficient as you lose the thousands of kph given by the Earth's rotation, and have to deal with the fact they have to reverse their initial velocity.

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