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During the pandemic scientists launched a vaccine in record-breaking time. Their successful use of mRNA technology could lead to progress in the decades-long effort for an HIV inoculation.

Kate Bush's song Running Up That Hill peaked at No. 30 on the Billboard Hot 100 four decades ago. This week it became her first-ever U.S. Top 10 hit.

On a sunny day, California gets up to 40 percent of its energy from solar power. Monday's total eclipse isn't just a scientific spectacle, it's a major concern for the state's power grid.

California's iconic old-growth redwoods are incredibly resilient and built to survive fires. But even they may find it harder to rebound amid the mounting impacts of climate change.

Americans use nearly four times the energy researchers say is needed to live a happy, healthy and prosperous life.

During World War II, the Brooklyn Navy Yard repaired warships. Today businesses on the same site are retooling to make medical supplies.

Ukraine is outgunned by Russia but is making the most of its mobile weapons that allow Ukrainian troops to be more nimble. Some of the most important weapons are from the United States.

The Marines died from the crash of a V-22B Osprey aircraft during a NATO exercise unrelated to the Ukraine war, officials said.

The vice president said he and his wife would be tested for the coronavirus, after an aide in his office was diagnosed with respiratory illness.

As President Emmanuel Macron and challenger Marine Le Pen campaign for the April 24 run-off election, analysts say the vote results will have deep consequences in France and on the world stage.