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How will the Roman Space Telescope learn about dark energy and dark matter?
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How will the Roman Space Telescope learn about dark energy and dark matter?

Written by
Elijah Tan
Elijah Tan was an Editorial Intern at EncyclopƦdia Britannica. He is studying Astrophysics and Science Communication at the University of Chicago, where he writes for the Chicago Maroon.
Elijah Tan
Fact-checked by
Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
Britannica Editors
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ā€¢History

The Nancy Grace Roman Space Telescope is designed to help astronomers answer questions about dark energy and dark matter, such as how the universeā€™s expansion has changed over billions of years. Discover how it takes advantage of a cosmic law, the finite speed of light, to peer back in time with its exceptionally wide field of view and reconstruct the universe as it was throughout its history.

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