News
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Science & SocietyKnow the legal age to buy tobacco products in the U.S.? Many parents don’t
A study finds that less than half of surveyed parents know the legal age, 21, to buy cigarettes, vapes, nicotine pouches and other tobacco products.
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Particle PhysicsA strange ‘neutrino force’ helped heal a crack in particle physics
A neglected force produced by neutrinos and other particles helps atomic physics measurements align with predictions of the standard model.
- Physics
A new measurement reveals gravity is still hard to pin down
After a 10-year effort, physicists got a value for “Big G” that does not settle the debate over one of nature’s hardest numbers to nail down.