Long a dream, it's now real: a fast and accurate TB test that doesn't need phlegm

TB tests use phlegm — not the easiest thing to get or work with. It takes time for results. And there can be false negatives ...

Dear Doctor: Is there a difference in how blood test results are calculated from one lab to another?

I’m a 74-year-old male in good health. My lab work has been pretty consistent over several years. My cholesterol level is ...
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NASA’s Dragonfly Soaring Through Key Development, Test Activities

NASA’s Dragonfly mission has cleared several key design, development and testing milestones and remains on track toward launch in July 2028. Dragonfly, a car-sized, nuclear-powered rotorcraft being ...