Healthy young man and a woman hiking and enjoying the view from the top of King Creek Ridge, Kananaskis Country, Alberta, Canada on a bright sunny day. Back packing in the Canadian Rockies.

How a Canceled Spy Satellite Became NASA’s New Window Into the Universe

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The Nancy Grace Roman Space Telescope, scheduled to launch on Sunday, will study dark energy and discover a multitude of planets.

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Watch SpaceX Launch NASA’s Roman Telescope to Chart the Stars