Self-replicating alien probes could already be here

Self-replicating alien probes could already be here



Mathematicians in Scotland calculate that "self-replicating" alien probes could already have explored our solar system and may still be here but undetectable to our current technologies.

Read more at: http://phys.org/news/2013-07-self-replicating-alien-probes.html#jCp


Cornell University Library Paper here:

http://arxiv.org/pdf/1307.1648v1.pdf

Yet another science fiction that is becoming science fact.

 

One more interesting paper:

http://arxiv.org/pdf/1203.6805.pdf

Let us consider a million year old civilization. What
can we deduct about its relevant characteristics? First:
to survive for so long it must have achieved some sort
of stability, against external factors (such as lack of re-
sources, cosmic catastrophes, entropic factors etc.) as
well as with respect to internal problems. ....