Of all the skin-care and cosmetics products I recently bought online that turned out to be counterfeit, expired, used, or otherwise problematic, the one that still makes me squirm ...

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Zheng Mengzhu (in bed), the first test-tube baby on the Chinese mainland in 1988, rests with her family after giving birth to her own baby on Monday in Beijing.Zou Hong / China Daily The first ...

A model of the transportation system involving a high-speed maglev train running in a low vacuum pipeline. [File photo/The Third Research Institute of China Aerospace Science and Industry Corp] ...

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen environmental ...

An esophageal pH test measures how much, how long, and how often stomach acid enters your esophagus to help diagnose GERD. Before the test, you shouldn't eat after midnight, and you may need to stop ...

Tubal ligation is surgical procedure to prevent pregnancy. It has commonly been called "getting your tubes tied." It is also called a female sterilization. Tubal refers to the fallopian tubes. Each ...