Building a prototype of the cosmos

How would it feel to peer into the night sky and behold millions of galaxies across a vast swath of space? What would it be like to hunt for worlds beyond our solar system, or spot the fiery deaths of stars?

Countdown to first launch of Europe's Ariane 6 rocket

After four years of delays, Europe's new Ariane 6 rocket is set to blast off for the first time on Tuesday, carrying with it the continent's hopes of regaining independent access to space.

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