Bringing Mars rocks back to Earth: On Feb. 18, Perseverance Rover landed safely on Mars – a lead scientist explains the tech and goals

Jim Bell, Arizona State University Editor’s note: On Feb. 18, NASA’s Mars 2020 mission arrived at the red planet and successfully landed the Perseverance Rover on the surface. Jim Bell is a professor in the School of Earth and Space Exploration at Arizona State University and has worked on a number of Mars missions. He … Continue reading Bringing Mars rocks back to Earth: On Feb. 18, Perseverance Rover landed safely on Mars – a lead scientist explains the tech and goals

Could a human enter a black hole to study it?

A person falling into a black hole and being stretched while approaching the black hole’s horizon. Leo Rodriguez and Shanshan Rodriguez, CC BY-ND Leo Rodriguez, Grinnell College and Shanshan Rodriguez, Grinnell College Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it … Continue reading Could a human enter a black hole to study it?

A Georgia Gold Rush Story: The Rise and Fall of America’s First Private Gold-Coin Mint

(Note: This article is dedicated to the memory of Carl Watner, who died on December 8, 2020 at the age of 72. A long-time defender of individual liberty and free markets, his 1976 article in Reason magazine, “California Gold, 1849-65,” helped renew awareness and appreciation for private money in American history). Put the federal government … Continue reading A Georgia Gold Rush Story: The Rise and Fall of America’s First Private Gold-Coin Mint

3 Glaring Problems with Joe Biden’s New Multi-Trillion COVID Package

On Thursday night, Joe Biden rolled out a sweeping proposal for $1.9 trillion more in COVID-19 relief and stimulus spending.  "I believe we have a moral obligation," Biden said during a speech in Delaware announcing the plan. "In this pandemic in America, we cannot let people go hungry, we cannot let people get evicted, we … Continue reading 3 Glaring Problems with Joe Biden’s New Multi-Trillion COVID Package

Africa’s New Free Trade Agreement Could Mark the Dawn of a New Era

The African Continental Free Trade Area (AfCFTA) came into force on 1 January, 2021. Once it becomes fully implemented and operational by 2030, the AfCFTA could be the world’s biggest fully-realized free-trade zone by area. The bloc has a potential market of 1.3 billion people and a combined gross domestic product of $2.5 trillion. This … Continue reading Africa’s New Free Trade Agreement Could Mark the Dawn of a New Era

How to turn plastic waste in your recycle bin into profit

Joshua M. Pearce, Michigan Technological University People will recycle if they can make money doing so. In places where cash is offered for cans and bottles, metal and glass recycling has been a great success. Sadly, the incentives have been weaker for recycling plastic. As of 2015, only 9% of plastic waste is recycled. The … Continue reading How to turn plastic waste in your recycle bin into profit

The Sunburst hack was massive and devastating – 5 observations from a cybersecurity expert

The Sunburst hack was massive and devastating – 5 observations from a cybersecurity expert Federal government agencies, from the Treasury Department to the National Nuclear Security Administration, have been compromised by the attack. Tasos Katopodis/Getty Images Paulo Shakarian, Arizona State University So much remains unknown about what is now being called the Sunburst hack, the … Continue reading The Sunburst hack was massive and devastating – 5 observations from a cybersecurity expert

Scientists suggest US embassies were hit with high-power microwaves – here’s how the weapons work

Edl Schamiloglu, University of New Mexico The mystery ailment that has afflicted U.S. embassy staff and CIA officers off and on over the last four years in Cuba, China, Russia and other countries appears to have been caused by high-power microwaves, according to a report released by the National Academies. A committee of 19 experts … Continue reading Scientists suggest US embassies were hit with high-power microwaves – here’s how the weapons work

Fragments of energy – not waves or particles – may be the fundamental building blocks of the universe

Larry M. Silverberg, North Carolina State University Matter is what makes up the universe, but what makes up matter? This question has long been tricky for those who think about it – especially for the physicists. Reflecting recent trends in physics, my colleague Jeffrey Eischen and I have described an updated way to think about … Continue reading Fragments of energy – not waves or particles – may be the fundamental building blocks of the universe