The author makes the technical and economic case for developing a space elevator and answers many of the common criticisms against the idea, including the risk that it could become a terrorist target.
The authors critique the case for space weapons and advocate U.S. unilateral restraint.
The U.S. Department of Energy has scheduled a hearing on the prospects for cold fusion, an indication that "something important has happened to grab the department's attention."
An international group of scientists from has been working on an ambitious project whose goal is to simulate on a supercomputer the evolution of the entire universe, from just after the Big Bang until the present.
Short update on the prospects for a commerically viable fusion reactor and the International Thermonuclear Experimental Reactor project.
The author analyzes the science and the risks behind high-powered microwave weapons.
A U.S. government betting pool for future terrorism events is gone, but predictive markets are here to stay.
New technologies can pinpoint your location at any time and place. They promise safety and convenience?but threaten privacy and security.
David Farber argues that despite all of the official pronouncements about the threat of cybersecurity, "we've seen little real action, while the sources of cybervulnerability have hardly changed in years."
Recent experiments have shown that direct control of prosthetic limbs by the brain may be less difficult to achieve than was supposed. The research has focused on rats and monkeys for now but bioethicists worry that the technology could be misused on humans.