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Monthly Archives: May 2011
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One of the things about the “arsenic story” that I’ve found incredibly compelling is how the conversation/debate on this paper has played out over the internet, in particular on blogs. Although this blog had not started, I had a history of blogging about sports, and was fascinated to see interactions with blogs from the “non-blog side” for the first time. This was also the biggest news story in my field in at least a decade, with a press conference called.... |
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3… ESA approved moving forward with a joint ESA/NASA Mars exploration program. This takes us one step closer to the 2016 ExoMars Trace Gas Orbiter… and to a 2018 Mars Sample Return caching mission. 2… Two words: olivine rain. 1… Today, Science published the final version of the Wolfe-Simon et al. “Arsenic-using bacteria paper,” as well as the eight technical comments on the paper, and the reply to those comments by Wolfe-Simon et al. Needless to say, we’ll be covering.... |
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Humanity has been reaching out to the cosmos for decades. We now sit at the dawn of a new era when we will bring the cosmos home. Yesterday, NASA selected Osiris-Rex for its next New Frontiers mission. Scheduled for a 2016 lanuch, this mission will travel for four years before entering orbit around the carbonaceous asteroid “1999 RQ36.” (I know… but the naming convention wasn’t designed with casual conversation in mind.) At that point, it will analyze the asteroid’s surface.... |
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Here’s what is going on today: 3… Ariel already covered the Moon news. 2… More debate, this time on how one of the Earth’s Snowball Earth events ended. Previous carbon isotope studies of dolomites deposited right after the Snowball event suggested that methane played a major role in ending snowball conditions. However, new research published in Nature suggests that the isotopic signature results from hydrothermal alteration, and so probably doesn’t tell us much about the environment at the time of.... |
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A new study published today provides a great example of how science works – as a process of discovery that blends inquiry, theory and argument. For decades, it has been accepted wisdom that the Moon must be incredibly dry. Not just at the surface but also in the interior, where an ocean’s worth of water can be hidden as traces of water inside minerals. This idea of a dry Moon fits with the well-established theory that the Moon formed when.... |
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Astrobiology Magazine Top Story |
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