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The founder of Amazon, who stepped down as CEO this month, lifted off early Tuesday with three crewmates on the maiden flight of Blue Origin's New Shepard launch vehicle.

Independent reviews said there's no question that mammography benefits women in their 50s and 60s. The reviews also agree that mammograms aren't universally valuable for women in their 40s.

Texas has one of the highest rates of TB among U.S. states. A sweeping effort is underway, largely funded by Medicaid, to diagnose and treat people who don't know they harbor the lung infection.

Bacteria engineered with an expanded genetic alphabet can produce novel proteins, which could lead to the development of new drugs.

Dr. Stuart F. Seides, associate director of cardiology at the Washington Hospital Center, discusses the potential cardiac care of Harry Whittington, the attorney who was accidentally shot Saturday by Vice President Dick Cheney. Whittington suffered a minor heart attack Tuesday.

A private space crew is heading to the International Space Station, but it's not just a tourist trip. The crew will advance the understanding of how space affects human health.

As part of NPR's series "One-Hit Wonders/Second-Best Songs," music supervisor Alexandra Patsavas recommends "Ring of Fire" by Wall of Voodoo. The band is mostly known for its 1983 hit "Mexican Radio."

Five-time U.S. Olympian Katie Uhlaender says a point-manipulation scheme blocked her bid to compete in Milan Cortina. U.S. sports officials are backing her bid for a special berth at the Winter Games.

In shaking up its Artemis lunar program, NASA's new moon plan looks more like the Apollo missions of the 1960s. Instead of landing on the surface on Artemis III, NASA hopes to do so on Artemis IV.

In a joint statement, the foreign ministries of the U.K., France, Germany, Sweden and the Netherlands say Navalny was poisoned by Russia with a lethal toxin derived from the skin of poison dart frogs.