Joe Palca

Joe Palca appears in the following:

A Speedy Test For Norovirus Could Help Water Supplies Check For Contamination

Friday, August 30, 2019

Flooding from storms can sometimes lead to contamination from sewage in the drinking water supply. Scientists are trying to develop a quicker test for one troublesome contaminant: norovirus.


A Newer, Faster Way To Detect Norovirus In Water Supplies

Tuesday, August 27, 2019

Norovirus sickens tens of millions of people each year. They get the disease from contaminated food or water. Engineers have developed a rapid, inexpensive test to detect the virus in water supplies.


Want To Know What's In Your Sweat? There's A Patch For That

Tuesday, August 20, 2019

Scientists are getting closer to developing a wearable patch that can measure hydration and other health markers — in sweat. The hope is it could give athletes more data to boost their performance.


Maybe The Way To Control Locusts Is By Growing Crops They Don't Like

Monday, August 19, 2019

A lab at Arizona State University tries to find new ways to combat the global scourge of locusts. One solution may have to do with farming practices.


These Engineers Have Found A Way To Use Sweat For Some Medical Tests

Friday, August 16, 2019

Engineers at the University of California Berkeley have developed a patch that can measure someone's sweat composition and sweat rate at the site of excretion.


What To Feed Locusts

Friday, August 09, 2019

Researchers at Arizona State University are studying locusts in hopes of finding better ways of preventing swarms from destroying crops.


This Handy New Device Might Help KO Cholera

Wednesday, August 07, 2019

An engineer has invented a new way to test for the presence of cholera bacterium in water. The test could be useful in remote areas, because it's lightweight and self-contained.


Chile And Telescopes Are A Match Made In Heaven

Friday, August 02, 2019

The South American country is home to the Andes Mountains and the Atacama Desert, places that have some of the stillest and driest air in the world. That makes them ideal for astronomy.


New Telescope Promises To Revolutionize Astronomy

Wednesday, July 24, 2019

A powerful telescope is taking shape in the Chilean Andes. When finished, it will repeatedly image huge swaths of the sky, searching for rare events such as merging stars and other events.


Telescope In Chile's Mountains Looks For Signals To Explain How The Universe Began

Wednesday, July 17, 2019

There's a telescope high up in the mountains of Chile that's looking for signals from the earliest moments of the universe. Finding these signals would be key to explaining how the universe began.


Robots, Not Humans, Are The New Space Explorers

Monday, July 08, 2019

Landing a man on the moon captures the public's imagination. But in the decades after the Apollo program, robots have also generated public excitement about space exploration.


Total Eclipse Hits Chile, Home To Half Of World's Telescopes

Saturday, July 06, 2019

A lot of important astronomy is being done thanks to telescopes stationed in the mountains of Chile, where researchers are studying developments in space.


Path Of A Total Solar Eclipse Passes Over A Major Observatory In Chile

Tuesday, July 02, 2019

The path of a total solar eclipse passed over the Cerro Tololo Inter-American Observatory in Chile on Tuesday. You had to be in the southern hemisphere to see the eclipse.


Solar Eclipse Will Pass Over A Major Observatory In Chile

Tuesday, July 02, 2019

On Tuesday, parts of South American will experience a total solar eclipse. The path of totality passes over one the world's premier observatories located in Chile.


Scientists Study Human Cancer Genes In Plants

Sunday, June 30, 2019

There are human cancer genes in plants. Scientists at the Oak Ridge National Laboratory in Tennessee are studying what they and other human genes are doing there.


Get A Glimpse: Total Solar Eclipse Set To Pass Over South Pacific, South America

Friday, June 28, 2019

The eclipse will happen on July 2. Its path of totality cuts across much of the south Pacific Ocean as well as Argentina and Chile — including a telescope that is one the world's largest.


NASA Engineers Try To Remedy Stuck Probe On Mars

Wednesday, June 12, 2019

An instrument on NASA's Mars InSight mission that was supposed to be driven into the planet's soil is stuck. It's designed to measure Mars's internal temperature.


Getting Fire From A Tree Without Burning The Wood

Tuesday, June 04, 2019

Cottonwood trees can harbor microorganisms that have a special (and flammable) characteristic.


Why Corned Beef Sandwiches — And The Rest Of The Universe — Exist

Saturday, May 25, 2019

Somehow, at the beginning of time, there was an imbalance of matter and antimatter. That's how all the stuff in the universe came about. Scientists think they may find an answer by studying neutrons.


NASA Wants To Send Your Name To Mars In 2020

Wednesday, May 22, 2019

NASA wants you to go to least, they want your name to go. As part of a publicity campaign, the public can fill out a form and have a name coded on a microchip to head up in 2020.