California students find ancient sloth fossil
Last spring, some elementary school students in Santa Cruz found an exposed bone in a creek bed, which turned out to be an ancient fossil – it just went on display.
Science
New images shed light on the supermassive blackhole at the center of the Milky Way
NPR's Ailsa Chang talks with astronomer Sara Issaoun about the latest image of the supermassive black hole at the center of the Milky Way galaxy.
PFAS 'forever chemicals' could be contaminating millions of acres of farmland
Biosolids (a byproduct of wastewater treatment) are often used as fertilizer. But toxic "forever chemicals", or PFAS, could be contaminating that fertilizer, along with millions of acres of farmland.
Milky Way black hole has 'strong, twisted' magnetic field in mesmerizing new image
The polarized light image gives us a "new view of the monster lurking at the heart of the Milky Way galaxy," according to the European Southern Observatory.
The Colorado River rarely reaches the sea. Here's why
More than half of the Colorado River's water is used to grow crops, primarily livestock feed, a new study finds. The river and its users are facing tough decisions as the climate warms.
Why a town on the front line of America's energy transition isn't letting go of coal
Kemmerer, Wyo., is on the front line of America's energy transition, with its coal plant slated to close and a nuclear plant in the works. But some think the rush to quit fossil fuels is impractical.
Here's what to know about dengue, as Puerto Rico declares a public health emergency
Most people with dengue will show no signs of infection or experience only mild symptoms, but in rare cases infections can become severe and potentially fatal.
On eclipse day, hundreds of students will send up balloons for science
The NASA-backed Nationwide Eclipse Ballooning Project puts students in charge of a bold scientific endeavor to study the April 8 total solar eclipse.
In the solar eclipse's shadow, hundreds of students will launch balloons for NASA
The eclipse on April 8 provides a unique opportunity for students across the country to conduct science. NASA is backing a nationwide project to collect data with research balloons.
How an Indianapolis teacher is using the solar eclipse to inspire her students
Indianapolis is one of several U.S. cities in the path of totality. For many students there, it's a once-in-a-lifetime opportunity to witness – and be inspired by – a total solar eclipse.