Dark Matter and Cosmology

Cosmology is the study of the structure, origin, and formation of the universe. Thanks to the wide-field imaging capability at the prime focus, the Subaru Telescope makes important and continuing contributions to the observational cosmology. For example, scientists revealed the distribution of dark matter using Subaru’s wide and deep data. The expansion rate of the universe was measured from distant Type Ia supernovae ‑ cosmic “beacon”, verifying the acceleration of the expanding universe.

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