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Chinese “Space Cleaner” Grabbing and Throwing Away Old Satellite
A Chinese satellite was spotted in late January grabbing another long-dead satellite and days later throwing it into a “graveyard” orbit 300 km away, where objects are less likely to hit spacecraft. There’s nothing wrong with throwing out the trash — many other countries have launched or are currently developing technologies to clear space junk. However, despite the seeming ubiquity of efforts to develop and implement space junk disposal technology, some U.S. officials have expressed worry over Chinese trash disposal satellites.
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We Need Hydropower for a Resilient Grid
The shift in power source mix and climate change-driven natural disasters make America’s most critical piece of energy infrastructure—the grid—more vulnerable than ever before. That’s where hydropower plays a pivotal role: When other types of power plants go dark, hydropower provides a fast, crucial response in seconds.
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Computing Carbon Storage
The road to a stabilized climate is challenging and contentious. A number of solutions will be needed to enable a fast, equitable transition away from fossil fuels: among them the development of sustainable energy sources, greener materials, and methods to remove CO₂ from the atmosphere.
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Fog Detection Software Helps Keep Travelers Safe
Fog and low stratus clouds over airports can create dangerous travel conditions that result in costly delays and disrupted travel plans. A new fog detection software will help.
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Broad, and Likely Unauthorized, Use of Pegasus Spyware by Israel's Police Shocks Israel
Since 2015, Israel’s police has employed the intrusive Pegasus spyware to spy on businesspeople, journalists and editors, senior managers of government ministries and agencies, leaders of protest movements, and more – and it appears that in many, if not most, of these cases, the spying was done without judicial approval or after judges were misled by the police about the nature of the monitoring technology. The Pegasus software has been used by authoritarian governments around the world to spy on political opponents, human rights activist, journalists – and in at least one case, to spy on U.S. diplomats. The U.S. has blacklisted the Israeli company NSO, Pegasus maker, and American companies are not allowed to sell their technology to NSO or do business with it
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Automated Approach to Extract Security Policies from Software
Researchers are exploring how a new automated approach could prevent software security vulnerabilities. The researchers sought to develop a deep learning model that could teach software how to extract security policies automatically.
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Improving the Flow of Renewable Energy to Power Plants
Integrating renewable energy with the power grid continues to be a big challenge for the electrical grid infrastructure in the United States. The solution is not simple, but it is not impossible, either.
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Refurbishing Nukes: Major Milestone for B61-12 Life Extension Program
Sandia National Laboratories marked a major milestone in November 2021 when the Nuclear Security Enterprise successfully produced the first completely refurbished bomb for the B61-12 life extension program.
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Nuclear Energy as a Hidden Gem
Advanced nuclear reactors will be a key component of a carbon-neutral economy. Andrew Breshears, a principal nuclear chemist at the U.S. Department of Energy’s Argonne National Laboratory, offers a back-to-basics look at nuclear energy, and the importance of science communication in the nuclear field.
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Hydropower and the Future of Energy
To combat climate change, the United States has set ambitious goals toward a clean energy, carbon-free future. Hydropower — one of humankind’s oldest power sources — will be critical to meeting those goals. Experts discuss the value of hydropower to the future of energy, opportunities and challenges ahead for hydropower and its connection to the future electric grid.
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When Water Is Coming from All Sides
When hurricanes hit, it is not solely the storm surge from the Gulf of Mexico and Atlantic Ocean that led to flooding. Inland sources, like rain-swollen rivers, lakes and suburban culverts, also contributed significantly. Researchers have developed and tested the world’s first 3D operational storm surge model, which takes these factors, which were missed by many computer models at the time, into account.
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Robot Dogs Soon to Be Deployed at the Border
DHS ST is offering a helping hand (or “paw”) with new robotic dog technology that can assist with enhancing the capabilities of CBP personnel, while simultaneously increasing their safety downrange.
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Functionally Graded Material Resistant to Blasts, Fire in buildings
When a bomb goes off or fire breaks out, a building constructed or retrofitted with an engineered composite currently confined to special applications could buy the surviving occupants extra time to get out. Functionally graded material (FGM), a recently developed composite characterized by the gradual variation of material properties across its thickness, is an effective bomb-resistant material in structural uses.
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Low-Cost Radio System Could Help Trace Disease Spread
In efforts to limit the spread of disease while preserving privacy, an interdisciplinary research team at NIST has designed and tested low-cost devices and methods that can detect when people or animals come into close contact with each other.
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Assessing Bridge Support Repairs After Earthquakes
Steel-reinforced concrete columns that support many of the world’s bridges are designed to withstand earthquakes, but always require inspection and often repair once the shaking is over. Engineers simulate restoration strategies for reinforced concrete columns.
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More headlines
The long view
Artificial Intelligence and Chemical and Biological Weapons
A recent article in Nature offers a disturbing look at the use of artificial intelligence (AI) in the creation of chemical and biological weapons. “Anyone unfamiliar with recent innovations in the use of AI to model new drugs will be unpleasantly surprised,” Paul Rosenzweig writes. “The benefits of these innovations are clear. Unfortunately, the possibilities for malicious uses are also becoming clear.”
New National Water Alliance Aims to Predict Water-Related Hazards, Manage U.S. Water Resources
The new Cooperative Institute for Research to Operations in Hydrology (CIROH) is composed of 28 academic institutions, non-profit organizations, and government and industry partners across the United States and Canada, aiming to better predict water-related hazards and manage the nation’s water resources.
New Network to Improve Biosecurity in Livestock
Health and welfare, safety and sustainability are crucial elements for ensuring the future of livestock production. Biosecurity aims to prevent the introduction and spread of pathogens within and between farms and, consequently, results in better welfare, increased food safety and better sustainability. A new network to improve biosecurity in livestock.
You've Heard of Water Droughts. Could “Energy” Droughts Be Next?
In a new modeling study, researchers show how widely wind and solar potential vary by season and year, suggesting that backup energy sources may be needed as the world shifts to renewables to bring carbon emissions to zero.
Machine-Learning Techniques for Predicting the Evolution of Epidemics
Machine learning techniques can provide an assumption-free analysis of epidemic case data with surprisingly good prediction accuracy and the ability to dynamically incorporate the latest data. The techniques used to analyze case data show promise for predicting the evolution of an epidemic.
How Do We Learn to Live with Extreme Events?
From weather dictionaries to AI physics, new approaches try to anticipate the next catastrophic flood, tornado, or hurricane.