• EV Batteries: Chinese Dominance Raises Thorny Questions

    Chinese firms currently dominate the electric vehicle battery supply chain — from mining and refining through to final assembly. This leaves Western automakers with little option but to rely on Chinese-made batteries.

  • The Potential for Geologic Hydrogen for Next-Generation Energy

    Hydrogen, you may recall from your school days, is a gas. It is considered the cleanest fuel, because burning it only produces heat and pure water. A previously overlooked, potential geologic source of energy could increase the renewability and lower the carbon footprint of the U.S. energy portfolio: natural hydrogen.

  • SUPER Technology Manages Intelligent Building Blocks for a More Reliable Electric Grid

    As the United States transitions to cleaner energy and more U.S. consumers adopt electric vehicles, the grid is facing new power flow demands. Researchers are tackling this challenge by creating a new architecture to modernize the grid from the bottom up, starting with consumers and expanding to the entire power distribution system.

  • Governments Are Using Science Fiction to Predict Potential Threats

    From high-tech fighting machines to supercomputers and killer robots, science fiction has a lot to say about war. You might be surprised to learn that some governments are now turning their attention to these fantastical stories as a way to think about possible futures and try and ward off any potential threats.

  • Making Drones Suitable for Cities

    Unmanned aerial vehicles will make their way into urban skies only if the safety of people below can be ensured.

  • Detecting Manipulations in Microchips

    Attackers have the ability not only to manipulate software, but also to tamper with the hardware. A team from Bochum is devising methods to detect such tampering.

  • Investigators May Be Able to Use Household Dust as a Forensic Tool

    A new study found it is possible to retrieve forensically relevant information from human DNA in household dust. After sampling indoor dust from 13 households, the researchers were able to detect DNA from household residents over 90% of the time, and DNA from non-occupants 50% of the time. The work could be a way to help investigators find leads in difficult cases.

  • New Algorithm Keeps Drones from Colliding in Midair

    Researchers create a trajectory-planning system that enables drones working together in the same airspace to always choose a safe path forward.

  • Kites Aim to Tap Unused High-Altitude Wind Power

    There is a growing interest in harvesting what are known as high-altitude winds. At a height of 200 meters (656 feet) and more, winds tend to blow stronger and more steadily than those closer to the ground. High-altitude winds remain a huge untapped source of renewable energy, but a race to the sky is well underway.

  • Channeling NEXTGEN TV to Help Responders Answer the Call

    A natural disaster strikes, vehicles collide on a snowy highway, a 5-alarm fire blazes through the night. For first responders, every second counts. DHS S&T is collaborating on a new effort to arm agencies with a digital alerting system that taps into NEXTGEN public TV broadcasting technologies to deliver emergency dispatches faster.

  • Preventing Fires and Explosions

    Lines in natural gas grids have to be maintained and serviced regularly. This entails using flares to vent the natural gas. With FlareSimulator, research scientists at the Fraunhofer Institute for Factory Operation and Automation IFF have developed an assistive tool that calculates the correct distance of flares to houses, trees and other nearby objects. This makes it easy to maintain minimum distances and prevent potential hazards and explosions.

  • New Method Helps Locate Deposits of Critical Metals

    The global shift to a carbon-free energy system is set to drive a huge increase in the demand for rare or limited earth minerals. This presents an urgent need to locate new sustainable sources of these elements. New technique could help locate new deposits of critical metals needed to enable the green-energy transition.

  • An Early Warning System for Landslides Protects Sitka, Alaska

    A hard rain was rattling against the rooftops of Sitka, Alaska, as day broke on August 18, 2015. Just before 10 a.m., a hillside gave way. A river of mud, rocks, and broken trees surged down the slope and crashed through the subdivision.

  • Perfectly Secure Digital Communications

    Researchers have achieved a breakthrough in secure communications by developing an algorithm that conceals sensitive information so effectively that it is impossible to detect that anything has been hidden.

  • “Switchable” High Explosives Mitigate Risk of Accidental Detonation

    New explosives materials ensure safe transport and storage. The “switchable” high explosives that won’t detonate unless activated by being filled with an inert fluid, such as water.