Tag Archives: Climate

XPrize After Earth challenge

The XPrize Foundation has teamed up with  Sony Pictures Entertainment and Overbrook Entertainment to launch a robotics competition celebrating the release of After Earth, in theaters May 31. In Phase 1 of the challenge, teams will create a 2–3 minute video essay that answers targeted questions and describes their thinking on the importance of space exploration, […]

The Limits of the Earth — Part 2: Expanding the Limits

by Ramez Naam (Credit: NASA) This is part two of a two-part series on the limits of human economic growth on planet Earth.  Part one details some of the environmental and natural resource challenges we’re up against. Part two, here, looks at the ultimate size of the resource pool and solutions to our problems.  Both parts […]

Russia asteroid impact: ESA update and assessment

The estimated orbit around the Sun of the Chelyabinsk object. It illustrates the orbits of Venus, Mars and Earth, together with the Sun and Earth at impact. The illustration is based on data provided by Dr Peter Brown. (Credit: NASA) The first firm details of the 15 February asteroid impact in Russia, the largest in […]

COULD SYNTHETIC FUELS ELIMINATE ENTIRE US NEED FOR CRUDE OIL, CREATE ‘NEW ECONOMY’?

Graphical representation of the locations of selected facilities for 50% replacement of petroleum fuels. The facilities are represented by dark brown circles with corresponding sizes. The amounts of coal, biomass, and natural gas feedstock in the United States are represented by the proposed color scheme in the map legend. (Credit: Josephine A. Elia, Richard C. […]