NASA Europa Clipper Mission Imperiled by Chips on Spacecraft
Transistors on the Europa Clipper spacecraft, scheduled to launch in October, may not be able to endure the harsh radiation…
Early Humans Left Africa Much Earlier Than Previously Thought
Scientists have found evidence of several waves of migration by looking at the genetic signatures of human interbreeding with Neanderthals.Hundreds…
A Mammoth DNA Discovery Helps Map an Ancient Genome in 3-D
In 2018 an international team of scientists — from labs in Houston, Copenhagen, Barcelona and beyond — got their hands…
Climate Activists in New York Protest Citibank and Other Backers of Big Oil
Amid soaring temperatures, hundreds of activists are staging boisterous blockades and solemn marches at banks and insurers that support fossil…
A.I. Helped to Spot a Copper Mining Bonanza in Zambia
Peering into their computer screens in California last year, the data crunchers watched a subterranean fortune come into focus.What they…
How Elon Musk and SpaceX Plan to Colonize Mars
For more than two decades, Elon Musk has focused SpaceX, his rocket company, on his lifelong goal of reaching Mars.Over…
NASA Says No Plan to Use SpaceX to Rescue Boeing Starliner Astronauts
In a news conference from aboard the International Space Station, Butch Wilmore and Suni Williams said they had confidence in…
Maxine Singer, Guiding Force at the Birth of Biotechnology, Dies at 93
A leading biochemist, she helped shape guidelines to protect a revolutionary new field in the ’70s while calming public fears…
Hot Nights Fuel Wildfires, Complicating Containment Efforts
Climate change is causing more fires to burn overnight, growing bigger, lasting longer and challenging the fire teams trying to…
In Constant Battle With Insurers, Doctors Reach for a Cudgel: A.I.
As health plans increasingly rely on technology to deny treatment, physicians are fighting back with chatbots that synthesize research and…