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San Diego-based trumpet player and UC San Diego music faculty Steph Richards is pictured in an undated photo.

Contemporary Sculpture Becomes Original Jazz At SDMA

Dewain Valentine's 1978 "Circle, Blue-Violet" is transformed — using science — into a work of original avant-garde jazz by local trumpeter Steph Richards

Ben Elliott gets barreled at the BSR Surf Resort, where artificial waves are attracting world-class talent.

Surfers Are Trading Natural Waves For Artificial Ones In Waco, Texas

The surf is always up in Waco, Texas, thanks to an artificial wave so good it's attracting top professionals and casual riders. It's a sign of just how far the technology of wave making has come.

Then-President Donald Trump points to ABC News Chief White House Correspondent Jonathan Karl during the daily COVID-19 briefing at the White House on April 6, 2020, in Washington, D.C.

In 'Betrayal,' ABC's Jonathan Karl asks: 'Must the Trump show go on?'

Karl notes often that Trump continues his campaign to invalidate the 2020 election — even now. The "Trump show" remains very much on stage, finding an audience and threatening to extend its run.

Chairman of the Joint Chiefs of Staff Colin Powell points to Iraqi airbases at a Pentagon briefing on Jan. 23, 1991. Powell became a household name during the first Gulf War.

Colin Powell's legacy, defined by two very different wars in Iraq

Colin Powell was hailed as a hero for a swift and speedy U.S. victory in the Gulf in 1991. But his reputation suffered from his flawed presentation in advance of the second Iraq war 12 years later.

Sonia Sein with her surgeons and ICU team at The Mount Sinai Hospital.

Woman Gets New Windpipe In Groundbreaking Transplant Surgery

A medical team in New York City says it has performed the first complete surgical transplant of a trachea. These kinds of transplants are one of the last big transplant challenges.

Food and Drug Administration Commissioner Stephen Hahn drew a hailstorm of criticism from scientists this week for mischaracterizing a study's findings in a way that hyped convalescent plasma's benefit. He later apologized, but critics say the damage was done.

FDA's Hahn Apologizes For Overselling Plasma's Benefits As A COVID-19 Treatment

The Food and Drug Administration's chief said Sunday the therapy reduces deaths among COVID-19 patients by 35%. On Monday he apologized, acknowledging that statistic greatly exaggerates any benefit.

Sepsis, which is sometimes called blood poisoning, is essentially the body's overreaction to an infection.

Vitamin C Fails Again As Treatment For Sepsis

Sepsis is one of the most common causes of death for hospitalized patients. The search for an effective treatment has been frustrating.

When working out in the summer, watch for the signs of dehydration and heat stroke. Choosing a later evening or early morning time for a run in one smart way to stay safe.

How to exercise safely in the heat

With much of the U.S. sweltering this summer, even avid runners, hikers and bikers are wilting. We've got 10 strategies from experts on how to exercise without keeling over.

If you must exercise when the the sun is high, dousing yourself with water, as this jogger did last month in steamy Washington, D.C., could help cool you down. Heat stroke is no joke, experts warn. Learn the signs to stay safe.

How To Heat-Proof Your Summer Workout

With much of the U.S. already sweltering this summer, even avid runners, hikers and bikers are wilting. We've got 10 strategies from experts on how to enjoy hot weather exercise without keeling over.

U.K. Health Workers Could Get A COVID-19 Vaccine As Soon As Next Week

The United Kingdom has become the first country to approve a thoroughly tested COVID-19 vaccine. A British regulatory agency approved the Pfizer/BioNTech vaccine on Wednesday.

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