Wednesday, September 5, 2012
Friday, February 3, 2012
Thursday, February 2, 2012
Wednesday, September 14, 2011
Being in space messes with your brain – bad news if you’re steering a spacecraft. How can we save astronauts from the space stupids.
Monday, July 4, 2011
Friday, July 1, 2011
We live on a hunk of rock and metal that circles a humdrum star that is one of 400 billion other stars that make up the Milky Way Galaxy which is one of billions of other galaxies which make up a universe which may be one of a very large number, perhaps an infinite number, of other universes. That is a perspective on human life and our culture that is well worth pondering.
Carl Sagan, quoted in Dan Lewandowski and John Stear, “A Tribute To Carl Sagan” (via cwnl)
Tuesday, April 19, 2011
Last Shuttle: Our Journey
Don’t miss history in the making. Get a look back at NASA’s shuttle program and see Atlantis blast off for the last time. Last Shuttle: Our Journey premieres Friday, July 8, 2011 at 10PM e/p on Science.
Saturday, September 4, 2010
If any habitable alien planets are orbiting two or more stars, they’ve probably evolved trees that would look black to human eyes, a new simulation suggests.
Such shadowy plants may even move or secrete sunscreen to shield themselves from deadly star flares, the research leader speculates.
The earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that in glory and in triumph they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of the dot on scarcely distinguishable inhabitants of some other corner of the dot. How frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds. Our posturings, our imagined self-importance, the delusion that we have some privileged position in the universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity — in all this vastness — there is no hint that help will come from elsewhere to save us from ourselves. It is up to us. It’s been said that astronomy is a humbling, and I might add, a character-building experience. To my mind, there is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly and compassionately with one another and to preserve and cherish that pale blue dot, the only home we’ve ever known.