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An ultra-low cost reusable #rocket engine, Prometheus, using liquid oxygen–methane propellants, is set to power Europe’s future launchers https://t.co/0svzz98eSO pic.twitter.com/pv7NlGRlHT — ESA (@esa) December 15, 2017

Not that we think it's ugly but…. who is wearing our #ESAshop festive sweater to work today for #UglyChristmasSweater day?! Share your photos if you dare! https://t.co/HpbIcTQWLL pic.twitter.com/PubmiqE3ax — ESA […]

Earth’s annual Geminid meteor shower did not disappoint as our fair planet plowed through dust from active asteroid 3200 Phaethon. Captured in this northern hemisphere nightscape, the meteors stream away […]

Life is really very simple…what you put in is what you get out! Total privilege to introduce… https://t.co/K5cE5RkJkq — Bear Grylls (@BearGrylls) December 13, 2017

Our kind of #StarWars: Two galaxies head to head in a cosmic collision, their gas, dust and stars swirling together in a riot of colour and light – seen here […]

Welcome back to Earth @astro_paolo! #ICYMI this morning's #Soyuz landing pic.twitter.com/ypBUJTLPJr — ESA (@esa) December 14, 2017

#WhereOnEarth was this satellite image captured? Guess the name of the LAKE in the top right corner of the image. The answer will be revealed tomorrow during #EarthFromSpace. pic.twitter.com/6N4ZI6dSzA — […]