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It is often referred to as Hubble's successor. Hubble changed the way we see space and showed its beauty. Most of the images of deep space, nebulas, planets were brought by Hubble among which this one: 10,000 galaxies, 10 billion light-years away from us. A mind-blowing surprise!pic.twitter.com/vimWNstNCj

Here you have the differences between Webb and Hubble - thanks @ESA. Electromagnetic waves are moving with different frequencies and this is why we have visible light, radio waves, microwaves UV, X-rays, etc., and JWST will only measure near and mid-infrared.pic.twitter.com/bZQeV2GY01

It will have 3 main breakthrough science missions : * view first galaxies and stars ever formed * Observe unknown exoplanets and their atmospheres in other solar systems * see through clouds of dust and gas to reveal new objects (thanks infrared vision )pic.twitter.com/J4Zz7bjtEL

JWST will be at the Lagrange point 2, 1.5 million km away (4 times the Eart-moon distance). Lagrange points are equilibrium points were the gravitational attraction from Sun and Earth balance each other.pic.twitter.com/WpYZOMcz91

Out there, the Sun is highly dangerous for instruments. You know how you protect yourself from the sun with a 30-50 SPF sunscreen? JWST's 5-layers sunshield is around 1,000,000 SPF and is 21m x 14m big - basically a tennis court. Folding it inside #Ariane5 was extremely complex !pic.twitter.com/5ZImpami8E

Yes, JWST will flie on the incredible Ariane 5 rocket #WebbFliesAriane. It will be the 256th flight of this rocket, and maybe the most important one (no pressure @Arianespace), launching from Kourou in French Guiana ! Check the steps here :pic.twitter.com/xbGXnY1QVt