Levi announces completion of DESI's planned five-year mapping programme, providing the full survey dataset for stronger tests of whether dark energy evolves.
Historical records for United States of America in 2026, rendered directly from the World History Database and ordered by month, day and event.
Levi announces completion of DESI's planned five-year mapping programme, providing the full survey dataset for stronger tests of whether dark energy evolves.
Engineers switch off Voyager 1's low-energy charged particle experiment to extend spacecraft operations.
Pushes a May ceasefire effort between Russia and Ukraine
Says he has held good talks with Vladimir Putin and Volodymyr Zelenskyy about the war
Juno data provide the first measurements of temperatures beneath Io's surface, refining models of tidal heating.
New analysis finds evidence that liquid nitrogen has recently risen through cracks to wet parts of northern Sputnik Planitia.
The full six-year Dark Energy Survey combines multiple probes to place stringent constraints on models in which the dark-energy equation of state changes with time.
After completing its planned map, Levi oversees continued DESI observations that extend the experiment's ability to test evolving dark-energy models with larger samples.
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