By Becky Ferreira At sunset on a late summer weekend in 1924, crowds flocked to curbside telescopes to behold the advanced alien civilization they believed to be present on the surface of Mars. “See the wonders of Mars!” an uptown sidewalk astronomer shouted in New York City on Saturday, Aug. 23. “Now is your chance to view the snowcaps and the great canals that are causing so much talk among the scientists. You’ll never have such a chance again in your lifetime.” That weeken

By Amanda Loudin When it comes to exercise, muscles and bones are clearly the stars of the show. But to feel your best and age well, you...

By Apoorva Mandavilli A possible cluster of bird flu infections in Missouri has grown to include eight people, in what may be the first...

By Franz Lidz The dodo was a flightless bird about the size of a male turkey that had a long, hooked beak and the goofy charm of an emperor penguin. Its ancestor first appeared on Earth more than 25 million years ago, and by 1662, because of humans, it had vanished from Mauritius, a remote island in the Indian Ocean, the only place it ever existed. The dodo has since become fixed in society’s imagination as the very emblem of ineptitude, an evolutionary clown — an impression

By Emily Baumgaertner “Make America healthy again!” Robert F. Kennedy Jr. looked out into the crowd in Glendale, Arizona, earlier this...

By Jennie Erin Smith In 1978, Dr. Francisco Lopera did what recent medical school graduates in Colombia and much of Latin America have...

By Kenneth Chang Two private astronauts moved outside their spacecraft early Thursday morning, conducting the first-ever commercial spacewalk. The spacewalk was the centerpiece of Polaris Dawn, a collaboration between Elon Musk’s SpaceX and Jared Isaacman, a billionaire entrepreneur who is leading the mission. “Back at home, we all have a lot of work to do, but from here, Earth sure looks like a perfect world,” he said while standing in the hatch of the SpaceX Crew Dragon cap

By Stephanie Nolen The cholera outbreaks spreading across the globe are becoming more deadly. Deaths from the diarrheal disease soared...

By Alice Callahan If hit podcasts, bestselling books and influencer culture are any indication, millions of people are obsessed with...

By Kenneth Chang The Starliner has landed. Boeing’s troubled spacecraft has finally come home, but the two NASA astronauts who traveled in it to the International Space Station in June remain in orbit. Because of problems with Starliner’s propulsion system during its approach to the space station in June, NASA officials decided not to put astronauts Suni Williams and Butch Wilmore on Starliner for the return trip. They will spend an additional five months on the space station