A woman shares a mint julep with her husband before the running of the 2013 Kentucky Derby.
David Goldman/AP Photo
'Take a silver cup – always a silver cup' and 'fill it with ice pulverized to the fineness of snow,' a Kentucky man explained in 1908.
Long-eared Myotis bat (
Myotis septentrionalis), photographed in Arizona.
Scientists often use animals and plants as indicators to assess whether ecosystems are polluted. Tracking bats, which cover wide areas and need clean water, could become a way to find potable water.
Two views of the internet collide in the net neutrality debate.
The Conversation composite from Malyugin and AAR Studios/Shutterstock.com
The internet developed as a place for open collaboration; there are technical limits on its transformation into a commercial marketplace.
The pretzel has had a twisted path from Germany to global snack food.
Why are they shiny? And how did Pennsylvania become the pretzel capital of the world?
Block Island Wind, the first offshore wind energy project in the U.S., started operation in 2016.
A recent survey of electric utility leaders finds that Trump administration efforts to promote coal energy and roll back air pollution regulations have had little impact on their long-range plans.
False-color image of ozone concentrations above Antarctica on Oct. 2, 2015.
NASA/Goddard Space Flight Center
Earth's ozone layer shields us from harmful ultraviolet radiation. Nations have been working to reduce ozone-depleting chemicals since the 1980s, but recent studies show that there is still work to do.
A woman walks by the New York Stock Exchange.
AP Photo/Richard Drew
Single women borrowed heavily in the run-up to the financial crisis, ensuring they suffered the most in its fallout. Will history repeat itself?
An ice sculpture titled ‘Main Street Meltdown’ melts near Wall Street.
AP Photo/Frank Franklin II
The collapse of an obscure corner of the financial market a decade ago foreshadowed the Great Recession. The stock-market swoon in February should offer a similar warning.
A ruling in the Janus case could devastate unions.
AP Photo/Jacquelyn Martin
The Supreme Court could kill collective bargaining throughout the country, making workers worse off and exacerbating inequality.
In a divided United States, how can we describe who is on each side?
There's a new way to reveal America's political divide. One researcher finds the differences between groups that are normally crudely described as 'right-left' can be better explained by word clouds.
Children at a school in Antananarivo, Madagascar, during a plague outbreak, Oct. 3, 2017.
AP Photo/Alexander Joe, File
Where do plague bacteria go between outbreaks? Research demonstrates that they can survive and replicate inside amoebae that are widely present in soil and water worldwide.
Warning sign at Kerr-McGee uranium mill site near Grants, N.M., December 20, 2007.
AP photo/Susan Montoya Bryan
The Trump administration's push for 'energy dominance' could spur a new wave of domestic uranium production. A scholar describes the damage done in past uranium booms and the visible scars that remain.
College is a fun time for young adults, but it can also become an unhealthy time.
College students may think they are living a fit life, but a recent study adds to growing research that suggests that many students are developing risk factors for heart disease.
South Korean chefs prepare bibimbap, a signature Korean dish, for the Korean Food Festival.
AP Photo/Lee Jin-man
The mountainous Gangwon province, home of the 2018 Olympics, boasts some unique fare. A Korean professor describes her favorite dishes, from Korean surf and turf to tofu as soft as ice cream.
President Donald Trump delivers his State of the Union address to a joint session of Congress.
Trump touted his administration's economic successes and laid out his immigration plan in an 80-minute speech to Congress. Our experts weigh in.
Fires break out across San Francisco after the April 18, 1906 earthquake.
According to current forecasts, California has a 93 percent chance of an earthquake with magnitude 7 or greater occurring by 2045. Early warning systems, now in development, could limit casualties and damage.
Sights like this Brooklyn rooftop covered with solar panels with a view of the Manhattan skyline have become more commonplace amid a U.S. renewable energy industry boom.
AP Photo/Mark Lennihan
Slapping duties on imported panels is unwise.
As many as 20 people are dead and dozens missing following the Southern California mudslides.
AP Photo/Marcio Jose Sanchez
A watershed scientist explains why post-wildfire landscapes are so susceptible to landslides – and why those risks are poised to rise.
Soybean crop on a family farm near Humboldt, Iowa, 2017.
Congress is drafting the 2018 farm bill, which will guide agriculture, nutrition, trade and rural development policy. A former agriculture secretary explains how this bill reaches far beyond farms.
Africa has the chance to innovate and grow, with the right policies and investment.
Calestous Juma believed that Africa needed an integrated science, technology and innovation framework. The continent can make this happen.