Physics
Scientists Say: Plasma
In physics, plasma refers to one of the four states of matter. In medicine, plasma describes the part of blood that ferries cells, nutrients and more throughout the body.
Health & Medicine
More Stories in Health & Medicine
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HumansHow COVID-19 testing plans can keep kids safe in school
As U.S. students head back to school, various testing strategies are being rolled out to help keep kids safe during in-person learning.
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Science & SocietyKids lost more than learning when COVID closed their schools
The first 18 months of the pandemic has already taken a hefty academic and emotional toll on students, new research shows.
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Health & MedicineMillions of kids have missed routine vaccines thanks to COVID-19
The missed shots brought vaccination rates for measles, diphtheria, tetanus and pertussis to their lowest levels in over a decade.
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Health & MedicineCOVID-19 can infect kids — and risks sickening some severely
Not all are equally impacted. Even among supposedly low risk groups, concerns intensify as the super-contagious delta variant sweeps across the globe.
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Health & MedicineWhat is the role of in-person classes in COVID-19’s spread?
New data haven’t shown that schools pose a big coronavirus risk to kids and their families, despite fears that they might.
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ChemistryLots of makeup may contain potentially harmful ‘forever chemicals’
Hints of PFAS compounds have turned up in about half of tested makeup products. Waterproof mascaras and lipsticks were very likely to contain them.
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Health & MedicineOne key change may have helped the coronavirus become a global menace
One key mutation may have helped the virus behind COVID-19 better infect human cells.
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Health & MedicineWill we all need COVID-19 booster shots?
Experts say not yet, but booster vaccines may be coming as new SARS-CoV-2 virus variants keep emerging.
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TechSleep-friendlier lighting is on the way
Chemists have created a new glowing material for LEDs. It should lessen how much near-bedtime lighting impairs your ability to nod off.