WASHINGTON — Doctors are beginning to offer a new alternative to hip replacement — one aimed at younger, athletic baby boomers who've worn out their joints too soon. Now they no longer have to wait ...

When Paul Tafforeau saw his first experimental scans of a COVID-19 victim’s lung, he thought he had failed. A paleontologist by training, Tafforeau had been laboring with a team strewn across Europe ...

Characterization and analytical techniques are methods used to identify, isolate or quantify chemicals or materials, or to characterize their physical properties. They include microscopy, light or ...