Submission + - NASA's New Mission to the Moon
mattnyc99 writes: Popular Mechanics has a new, in-depth preview of NASA's Orion spacecraft, tracking the complex challenges facing the engineers of the CEV (which NASA chief Michael Griffin called "Apollo on steroids") as America shifts its focus away from the Space Shuttle and back toward returning to the moon by 2020. After yesterday's long op-ed in the New York Times concerning NASA's about-face, PopMech's interview with Buzz Aldrin and podcast with Transterrestrial.com's Rand Simberg raise perhaps the most pressing questions here: Is it worth going back to the lunar surface? And will we actually stay there?
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Submission + - Is Coal (Yes, Coal) the Next Hot Technology?
nlseaver writes: From a greenhouse gas perspective, coal is one of our dirtiest sources of energy. It's also widely available and cheap, and so it will continue to be a critical source of energy in the twenty-first century. Despite hopes for "clean coal" technology, no clear solution has emerged. Furthermore, because no policy framework (like a carbon tax or incentives to invest in clean technology) yet exists, coal companies are putting into place long-lived "dirty" coal facilities. As the article states: "Within the next few years, power companies are planning to build about 150 coal plants to meet growing electricity demands. Despite expectations that global warming rules are coming, almost none of the plants will be built to capture the thousands of tons of carbon dioxide that burning coal spews into the atmosphere."
http://select.nytimes.com/mem/tnt.html?emc=tnt&tnt get=2007/02/21/business/21coal.html&tntemail1=y
