Science
Nuclear-test monitor calls Tonga volcano blast 'biggest thing that we've ever seen'
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Marina Kluchnikov reads to her youngest child, Sasha, 3, as husband Artyom Kluchnikov looks on and daughter Olenka, 11, reads a book of her own. With Russian troops amassed along Ukraine's border, they worry if an invasion could be imminent. Pete Kiehart for NPR hide caption
Despite fears of a Russian invasion, one Ukrainian family tries to keep life normal
22 tips for 2022: You don't need an intense workout. Small moves make a difference
People receive boxes of KN95 face masks during a back to school event offering school supplies, COVID-19 vaccinations, face masks, and other resources for children and their families at the Weingart East Los Angeles YMCA in August. Patrick T. Fallon/AFP via Getty Images hide caption
A performer from the Beija Flor samba school parades during Carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil in 2020. The 2022 Carnival festivities in Rio will be held in late April rather than the final weekend of February, as the number of coronavirus cases in Brazil spikes and the omicron variant spreads across the country. Leo Correa/AP file photo hide caption
A bullet hole in a parked vehicle is seen on Friday, Dec. 31, 2021, in Philadelphia. Two gunmen fired more than 65 rounds, sending nighttime pedestrians on a busy block scrambling for cover and injuring six people, at least one critically. Michael Perez/AP hide caption