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A dose of the one-shot Johnson & Johnson COVID-19 vaccine is prepared at a vaccination event at Baldwin Hills Crenshaw Plaza in South Los Angeles on March 11, 2021. Mario Tama/Getty Images

Restart of the Johnson & Johnson COVID-19 vaccine: A doctor explains why benefits far outweigh risks

The CDC and FDA said the benefits of the Johnson & Johnson vaccine far outweigh the low risk of developing rare blood clots and lifted a pause on the vaccine’s use. A doctor explains.
Faster than light travel is the only way humans could ever get to other stars in a reasonable amount of time. Les Bossinas/NASA/Wikimedia Commons

Warp drives: Physicists give chances of faster-than-light space travel a boost

If humanity wants to travel between stars, people are going to need to travel faster than light. New research suggests that it might be possible to build warp drives and beat the galactic speed limit.
A tiger crosses a road in India’s Ranthambore National Park. Aditya Singh/AFP via Getty Images

GPS tracking could help tigers and traffic coexist in Asia

An infrastructure boom threatens endangered tigers across Asia. Scientists want to know more about how tigers behave near roads so they can design wildlife-friendly transportation networks.
Police arrest a protester at a Moscow rally in support of Russian dissident Alexei Navalny, who fell ill while in prison and is now hospitalized. Alexander Demianchuk\TASS via Getty Images

For Vladimir Putin and other autocrats, ruthlessly repressing the opposition is often a winning way to stay in power

There’s not much the world can do to stop authoritarian rulers from persecuting their political opponents, as shown by the standoff over Russian dissident Alexei Navalny, who is ill and imprisoned.
Si has experimentado un aumento o una pérdida de peso no deseados durante la pandemia, no estás solo. Karl Tapales/Moment via Getty Images

¿Aumento o pérdida de peso no deseado durante la pandemia? El estrés podría tener la culpa

El 42% de los estadounidenses encuestados para un estudio ganó peso no deseado en 2020, de media 13 kilos. Casi el 18% afirmó haber experimentado una pérdida de peso no deseada, una media de 12 kilos.
Medical workers hold signs during a rally in Central Park in New York City by White Coats for Black Lives after the death of George Floyd on May 25, 2020. Maria Khrenova/TASS via Getty Images

Declaring racism a public health crisis brings more attention to solving long-ignored racial gaps in health

Black Americans have worse health outcomes by many measures. To draw attention to that fact, the CDC and communities across the country have called racism a public health threat.
Children play in Las Flores village, Comitancillo, Guatemala, home of a 22-year-old migrant murdered in January 2021 on his journey through Mexico. Johan Ordonez/AFP via Getty Images

Money alone can’t fix Central America – or stop migration to US

Biden’s $4 billion plan to fight crime, corruption and poverty in Central America is massive. But aid can’t build viable democracies if ‘predatory elites’ won’t help their own people.