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If you take humanity's current energy and technological capacity and project a steady increase into the future, the chances of us reaching the stars any time soon look bleak. Even our nearest stellar neighbor is at least 300 years away. More »
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Could we travel to the nearest stars in a human lifetime? Yes. If we could harness the full power of the sun, it would be far less unpleasant than you think. Welcome to this week's "Ask A Physicist" column. More »
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Click to viewAccording to the scientists who attended this year's Joint Propulsion Conference in Hartford, Connecticut, humans may never be able to achieve interstellar travel. Aerospace experts from NASA to MIT claim that finding the amount of energy and time we'd need to cross the huge distances involved is out of the realm of possibility. In a recent article, Wired Magazine's Robert Lemos suggested that the JPC's frustrating findings meant humans would never reach the stars. But don't add "space adventure" to your list of unlikely futures for the human species just yet — here are four reasons why. More »
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