We're in our bodies every day, but how well do we really know them? From how the brain supports higher-level thinking to why ...

NASA Administrator Jared Isaacman told NBC's Lester Holt that lessons from the Artemis II moon mission are informing plans to ...

For centuries, the inability to regrow lost body parts has been considered a defining limitation of humans and other mammals. While animals like salamanders can regenerate entire limbs, humans are ...

“Estrogen is basically turning up the sensor for acetate,” Ingraham explains. “It’s a compound gut bacteria produce when they ...

Astronaut Chris Hadfield discusses the value and risks of space travel, his emotional response to the Artemis II mission, and ...