Trey Parker & Matt Stone - SouthPark Creators on Vimeo
The future of space with Bill Nye, Neil deGrasse Tyson, Pamela Gay, and Lawrence Krauss discuss our future in space | Geekation: where geeks goThe video, originally shot back in July at TAM 2011 Las Vegas , is of a panel featuring Bill Nye, astronomers Neil DeGrasse Tyson & Pamela Gay, and theoretical physicist Lawrence Krauss—and the entire discussion is moderated by Bad Astronomy ‘s Phil Plait.
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Scientists have found the biggest and oldest reservoir of water ever--so large and so old, it’s almost impossible to describe. The water is out in space, a place we used to think of as desolate and desert dry, but it's turning out to be pretty lush. Researchers found a lake of water so large that it could provide each person on Earth an entire planet’s worth of water--20,000 times over. Yes, so much water out there in space that it could supply each one of us all the water on Earth--Niagara Falls, the Pacific Ocean, the polar ice caps, the puddle in the bottom of the canoe you forgot to flip over--20,000 times over.
logy Magazine A turning point in the history of life occurred 2 billion to 3 billion years ago with the unprecedented appearance and dramatic rise of molecular oxygen . Now researchers report they have identified an enzyme that was the first – or among the first – to generate molecular oxygen on Earth. The new findings, reported in the journal Structure , build on more than a dozen previous studies that aim to track the molecular evolution of life by looking for evidence of that history in present-day protein structures. These studies, led by University of Illinois crop sciences and Institute for Genomic Biology professor Gustavo Caetano-Anollés , focus on structurally and functionally distinct regions of proteins – called folds – that are part of the universal tool kit of living cells. Protein folds are much more stable than the sequences of amino acids that compose them, Caetano-Anollés said. Mutations or other changes in sequence often occur without disrupting fold structure or function.