Six and a half months ago, a rocket launched from Earth carrying the world’s world ’s newest, most powerful deep - space telescope on a journey one million miles into the cosmos — first of all, that blows my mind: a million miles into the cosmos — along the way unfolding itself, deploying a mirror 21 wide, a sunshield the size of a tennis court, and 250,000 tiny shutters, each one smaller than a grain of sand.