from the phone-011-then-home dept.
astroengine writes "A new radio telescope is under construction, consisting of 44 stations (each consisting of several antennae) spread across Europe. The pan-European Low Frequency Array is half built and already returning unprecedented observations of cosmic radio sources. The best thing is, when it's complete, SETI will be able to use the array to seek out transmitting extraterrestrial civilizations in these untapped low radio frequencies."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals