Link tags: exobiology

Greetings, E.T. (Please Don’t Murder Us.) - The New York Times

Steven Johnson dives deep into the METI project, starting with the Arecibo message and covering Lincos, the Drake equation, and the Fermi paradox.

He also wrote about what he left out of the article and mentions that he’s writing a book on long-term decision making.

In a sense, the METI debate runs parallel to other existential decisions that we will be confronting in the coming decades, as our technological and scientific powers increase. Should we create superintelligent machines that exceed our own intellectual capabilities by such a wide margin that we cease to understand how their intelligence works? Should we ‘‘cure’’ death, as many technologists are proposing? Like METI, these are potentially among the most momentous decisions human beings will ever make, and yet the number of people actively participating in those decisions — or even aware such decisions are being made — is minuscule.

[1701.01109] Fast Radio Bursts from Extragalactic Light Sails

We examine the possibility that Fast Radio Bursts (FRBs) originate from the activity of extragalactic civilizations. Our analysis shows that beams used for powering large light sails could yield parameters that are consistent with FRBs.

I’m guessing Paul Gilster may have thoughts on this.

Visualizing the Alien: A Hollywood Conundrum

Compare and contrast Alien, Starship Troopers, and The Thing with 2001 and Roadside Picnic (and I would throw Solaris into the mix).

Plugging in a monster moves a plot right along, of course, but if that’s all it’s doing, the plot is neglecting to examine how a real biosphere would work. That would be a sensationally complex task, but given the amount of research now going on in astrobiology and exoplanetary science, the suspicion here is that experts could be summoned who could produce such a film. Even so, there is something to be said for not seeing aliens.