Experts Ponder Nuclear Rockets To Send Humans To Mars Nuclear rocket technology might be the fastest, safest way to get to the red planet. But if NASA wants to go, it should start development now. Geoff Brumfiel
3rd COVID-19 Vaccine May Be Available Soon In The U.S. The Food and Drug Administration has released its assessment of an application from Johnson & Johnson for emergency use authorization for its vaccine. It finds the vaccine safe and effective. Joe Palca
New Evidence Shows Fertile Soil Gone From Midwestern Farms One third of the cropland in the upper Midwest has entirely lost its fertile topsoil, according to a new study. Other scientists doubt that figure, but agree that soil loss is a big problem. Dan Charles
Scientists Say Fertile Soil Is Missing From Many Midwestern Farms It's estimated a third of the Upper Midwest's cropland has lost all of its topsoil, which is vital for growing crops. Even if there's a dispute on the number, scientists agree the loss is a problem. Dan Charles
WATCH: Perseverance's Video Cameras Capture Its Arrival On Mars (There's Audio, Too) Six off-the-shelf cameras comprised the spacecraft's EDL Cam system (Entry, Descent and Landing). Together they provided a spectacular view of the Rover's arrival on the red planet. Mark Katkov
As Cities Grapple With Climate Change, Gas Utilities Fight To Stay In Business Natural gas utilities face a bleak future in a world increasingly concerned about climate change. An NPR investigation shows how they work to block local climate action and protect their business. Jeff Brady
A Looming Disaster: New Data Reveal Where Flood Damage Is An Existential Threat More than 4 million homes face financial losses from flooding. Communities where flood insurance is already unaffordable are facing potentially catastrophic damage. Rebecca Hersher
NASA Scientist Discusses Her Work On The Perseverance Mars Rover Project NPR's Lulu Garcia-Navarro speaks with NASA engineer Christina Hernandez about her role in the Mars Perseverance mission.
Do Blue Light Blocking Glasses Really Work? NPR's Lulu Garcia-Navarro speaks to vision researcher Mark Rosenfield about the efficacy of blue light-blocking glasses.
NASA's Rover Perseverance Safely Lands On Mars NASA's six-wheeled rover landed successfully on Mars yesterday. NPR's Joe Palca talks about the descent and landing, and what's next for the mission. Joe Palca
