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The Quest for Clean Hydrogen Moves Underground
The dream of clean hydrogen has tantalized energy experts for years, but producing it has been tough. Many start-ups think the answer could lie beneath our feet.
First seen · 10:16 PM UTCMay 18, 2026
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Victoria Day
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International Museum Day
International Council of Museums day since 1977. About 95,000 museums exist globally — and after a 2020 pandemic dip, attendance bounced back to pre-COVID levels by 2023.
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2019
United States presidential election: Joe Biden launches his presidential campaign.
Politics2018
A school shooting at Santa Fe High School in Texas kills ten people.
Milestone
2018
Cubana de Aviación Flight 972 crashes in Santiago de las Vegas after takeoff from José Martí International Airport in Havana, Cuba, killing 112 of the 113 people on board.
Milestone