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Centauri Dreams
Imagining and Planning Interstellar Exploration

Centauri Dreams
  • A Closer Look at Barnard?s Star b
    Barnard?s Star b, the planet announced last November around the second nearest star system to the Earth, has been the subject of intensive study by an international team led by Ignasi Ribas at the Institute of Space Studies of Catalonia (IEEC), and Institute of Space Sciences (ICE, CSIC). As announced at the recent meeting of […]

  • Red Dwarf Planets May Lack Needed Volatiles
    We can identify a number of circumstellar disks, but most are too far away to provide internal detail, much less the kind of activity that seems to be showing up around the red dwarf AU Microscopii. For at 32 light years out in the southern constellation Microscopium, AU Microscopii is presenting us with an unusual […]

  • ?Oumuamua: Future Study of Interstellar Objects
    ?Oumuamua continues to inspire questions and provoke media attention, not only because of its unusual characteristics, but because of the discussion that has emerged on whether it may be a derelict (or active) technology. Harvard?s Avi Loeb examined the interstellar object in these terms in a paper with Shmuel Bialy, one we talked about at […]

  • Is Most Life in the Universe Lithophilic?
    Seeking life on other worlds necessarily makes us examine our assumptions about the detectability of living things in extreme environments. We’re learning that our own planet supports life in regions we once would have ruled out for survival, and as we examine such extremophiles, it makes sense to wonder how similar organisms might have emerged […]

  • Technosearch: An Interactive Tool for SETI
    Jill Tarter, an all but iconic figure in SETI, has just launched Technosearch, an Internet tool that includes all published SETI searches from 1960 to the present. A co-founder of the SETI Institute well known for her own research as well as her advocacy on behalf of the field, Tarter presents scientists with a way […]


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