Police help students at Great Mills High School in Maryland, after a shooting there in March 2018.
A new law and Maryland calls for an expanded law enforcement presence in Maryland schools. But lack of funding and inadequate training could potentially undermine the initiative.
Snow on the ground after a winter storm.
NASA Goddard MODIS Rapid Response
Why can't meteorologists call the weather correctly every time? Blame the battle of the weather models.
Flapping flags flutter.
Whether or not you’ve ever used the word flutter, you’ve encountered the phenomenon – in flags, airplanes, bridges and more. Mathematicians are still figuring out exactly why and how this happens.
Demonstrators in front of the White House protest inaction on gun control.
A recent cut to federal funding for school safety research could hurt efforts to make schools more secure, a scholar warns.
What’s inside Olympians’ skis?
AP Photo/Luca Bruno
Highly engineered composite materials let skis ride smoothly, carve neatly and turn quickly – for top athletes and regular consumers alike.
Times Square traffic jam.
New York soon may charge a fee to drive into central Manhattan as a way of reducing traffic and raising funds for public transit. An urban scholar says this step is overdue in the United States.
The tech sector has long had a diversity problem.
AP Photo/Elaine Thompson
Amazon, like the entire tech sector, has suffered from a lack of diversity in its workforce. This trend is likely to continue when it opens a second headquarters in one of 20 cities.
Is this cloud secure?
Storing data in the cloud is convenient, but how secure is it? And what are users' options for stepping up their data security?
How fast can quantum computing get? Research shows there’s a limit.
A future that continues to have increasingly fast computing depends on quantum physics – but research is showing that there are limits to how fast quantum computers can go.
A vial of blood that has been tested for HIV.
The death toll from HIV/AIDS continues to decline, but more than 36 million people are still living with HIV. A researcher explains why the work for a cure is painstaking.
U.S. immigration law has a complicated history with keeping families together.
A scholar explains why the president's plan to overturn his predecessor's rule would be a big mistake and disproportionately harm women.
Though not this obvious from the outside, plants are keeping time.
Precisely calibrated timekeepers are found in organisms from all domains of life. Biologists are studying how they influence plant/pathogen interactions – what they learn could lead to human medicines.
Is it time for Congress to act?
As the issue of an open and free internet again comes up for public debate, Congress could participate – and help regulators devise a workable set of policies.
There are a lot more holes in cybersecurity fences.
The modern world depends on critical systems, networks and data repositories that are not as secure as they should be. Breaches will continue until society as a whole makes some big changes.
International Olympic Committee President Thomas Bach stands between Paris Mayor Anne Hidalgo and Los Angeles Mayor Eric Garrett to announce winning bids for the upcoming games.
AP Photo/Martin Mejia
The benefits of hosting the Olympics are so slim, or nonexistent, that fewer cities are bidding to host the games. That's a sign of serious trouble.
Colleen Burge counts oysters on an oyster aquaculture lease in California.
Oysters grow in seawater and filter their food from it, so how do you shield them from waterborne diseases? Scientists are working to develop strains that are resistant to a fast-spreading herpes virus.
Robots can also lend a hand of sorts.
Robots have the potential to help support a growing population that wants to age in their own homes. But those helpful machines won't be the humanoid butlers of science fiction.
Color-changing cells in an Atlantic squid’s skin contain light-sensitive pigments.
We're used to thinking of our eyes detecting light as the foundation of our visual system. But what's going on in other cells throughout the body that can detect light, too?
Realistic and stylized at the same time.
As the animated film 'Bambi' celebrates its 75th anniversary, a reminder that humans often try to express reality. But once they do, they go back to making art.
When President Bill Cllinton officially ended welfare as we knew it, he was flanked by women who had received Aid to Families with Dependent Children.
Trump's rationale for cutting the Temporary Assistance to Needy Families program rests on a myth at odds with contemporary data.