Photos: The Culture Of Whales Belugas play, a sperm whale nurses, and orcas teach their pups to hunt in a series of photographs from National Geographic photographer and explorer Brian Skerry. Taylor Haney
Success! NASA's Ingenuity Makes First Powered Flight On Mars The tiny helicopter took off and hovered briefly — the first such flight on another planet. The Perseverance rover kept tabs on the mission from a viewing point about 60 yards away. Joe Palca
FAQ: America's New Promise On Climate The U.S. is planning to rapidly reduce greenhouse gas emissions. This is America's return to the international climate stage. We break it down for you. Rebecca Hersher
Researcher Studies How Messaging On COVID-19 Disparities Affects Policy Preferences NPR's Michel Martin speaks with professor Evan Lieberman about the study he co-authored looking at how sharing information about the pandemic's racial disparities affect peoples' policy opinions.
SpaceX Wins $2.9 Billion Contract For Next Lunar Lander The company beat out two others in its bid to develop a lunar lander that will bring Americans back to the moon in the coming years. Matthew S. Schwartz
Here's What 'All Things Considered' Sounds Like — In Blackbird Song A Finnish computer scientist had a dream that a blackbird was speaking to her in human language. So she devised a computer program to transform the sounds of the human voice into birdsong. Ailsa Chang
Biden Administration Expected To Reverse Trump's Ban On Funding Fetal Tissue Research The Trump administration banned federal funding for scientific research on fetal tissue from abortions. The Biden administration is expected to reverse that. Sarah McCammon
Carbon Emissions Could Plummet. The Atmosphere Will Lag Behind The U.S. plans to reduce greenhouse gas emissions dramatically in the next decade. Scientists say it's crucial that the U.S. succeed. Still, many of the positive effects won't arrive for decades. Rebecca Hersher
Millions Flock To Hindu Festival Amid Coronavirus Spike Hindu pilgrims are traveling to bathe in the Ganges River to wipe out their sins. Sushmita Pathak
Newly Discovered Dinosaur Was Top Carnivorous Predator In Argentina The dinosaur named Llukalkan aliocranianus was a predator with a menacing appearance and the ability to strike fear in its prey. Paleontologists said it roamed the Earth nearly 80 million years ago. Alejandra Marquez Janse