Search: meti

SETI, METI… and Assessing Risk like Adults

November 12, 2013

David Brin is a familiar name to science fiction readers worldwide, the award-winning author of the highly regarded ‘uplift’ novels that include Startide Rising (1983), The Uplift War (1987) and Brightness Reef (1995). Among his numerous other titles are The Postman (1985), Kiln People (2002) and Existence (2012). But Brin is also known as a […]

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James Benford: Comments on METI

November 11, 2013

Pardon this extended introduction to Jim Benford’s response to Nick Nielsen’s Friday essay, but it comes at a serendipitous time. Jim’s recent online work has reminded me that we in the interstellar community need to work to see that as many resources as possible are made available online. In the absence of specialized bibliographies, useful […]

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SETI, METI, and Existential Risk

November 8, 2013

To broadcast or not to broadcast? The debate over sending intentional signals to other stars continues to simmer even as various messages are sent, with no international policy in place to govern them. Writer Nick Nielsen looks at METI afresh today, placing it in the context of existential risk and pondering the implications of what […]

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The Pros and Cons of METI

May 6, 2011

Tau Zero journalist Larry Klaes has been fascinated by SETI — and its offshoot METI (Messaging to Extraterrestrial Intelligence) — for a long time now. Here he steps back to look at METI in context, offering up an examination of the advantages of sending signals to the stars and the offsetting risks. We’ve looked at […]

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Regarding METI and SETI Motives

September 22, 2009

by James Benford I first talked to Jim Benford back in 2003, discussing his work (wih brother Gregory) on microwave beam propulsion. He had already run experiments at the Jet Propulsion Laboratory demonstrating acceleration on a lightsail using these techniques, and was then hoping to run an experiment on The Planetary Society’s ill-fated Cosmos 1. […]

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The Why of METI and SETI

September 18, 2009

by Larry Klaes About a decade ago while attending a SETI conference, I was listening to a researcher give a talk about detecting messages from other galaxies such as the giant elliptical galaxy Messier 87 and the immense Virgo galactic cluster it resides in. Since M87 is about 60 million light years from the Milky […]

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METI: Learning from Efficient Beacons

October 30, 2008

If we want to consider how to pick up transmissions from a distant civilization, it pays to consider the most effective strategies for building interstellar beacons here on Earth. This is the method James, Gregory and Dominic Benford have used in twin papers on SETI/METI issues, papers that should be read in conjunction since the […]

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The Blue Spectres of Abyssal Europa

August 19, 2016

Claudio Flores Martinez has just finished an MSc at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany and is now enroute to a PhD in theoretical biology. He currently serves as a research assistant at the Developmental Biology Unit of EMBL and the University of Heidelberg’s Centre for Organismal Studies. With three papers in […]

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Into the Nebula: Low-Mass Objects in Orion

July 12, 2016

Because we want to learn more about how stars form, we study the so-called Initial Mass Function, which tells us, for a given population of stars, the distribution of their initial masses. As one recent reference (the Encyclopedia of Astrobiology, Springer, 2011) puts it: “The initial mass function is the relative number of stars, as […]

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Structure and Composition of a White Dwarf Planet

June 16, 2016

Given everything we’re learning about planets around other suns, it’s frustrating that we have so little information about the chemical composition of the rocky planets we’ve found thus far. Now we have a new study, announced at the San Diego meeting of the American Astronomical Society, that offers data on a ‘planet-like body’ whose surface […]

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