Filippenko will discuss the discovery that the expansion of the universe is speeding up over time, a finding that led to the 2011 Nobel Prize in Physics. He will also discuss the Hubble tension, with ...
Mommy Poppins on MSN
Top free things to do with kids in DC in January 2026, according to Mommy Poppins editors
Washington, DC is known for its many free offerings, but did you know the depth of the free activities available? They extend ...
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