Tag Archives: NASA

Mars and the Future of Humanity

Mars. The Red Planet. It has fascinated humans since antiquity.  It was discovered so long ago that there is no record of its discovery.  It is easy to observe, appearing periodically as a morning or evening star, when the sky … Continue reading

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Are We Lucky?

“I’d rather be lucky than smart!” This hackneyed adage is usually delivered sarcastically, in response to someone who just won the lottery, got the big promotion, or left the casino with a pile of cash. The implication is that, if … Continue reading

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On Near-Earth Objects

A little less than a year ago, on 15 February, 2013, a meteor approximately 20 meters in diameter exploded in an airburst about 60 kilometers from the Russian city of Chelyabinsk. An article in last week’s issue of Science provides … Continue reading

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