NASA’s Roman telescope readies a sweeping view of the universe

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By Daniel Clery, Science. 

Excerpt: In recent years, astronomy has become a big data science, with survey telescopes capturing thousands of objects in a single look. As soon as 30 August, NASA will take that approach into space with the launch of the $4.3 billion Nancy Grace Roman Space Telescope. With the Hubble Space Telescope’s sharp vision but a field of view 100 times larger, Roman will rapidly survey the sky to tackle some of astronomy’s biggest questions—from the nature of dark energy to the demographics of planets around other stars.... 

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