Astro-ph round up 4

1408.1133 - Very interesting set of papers (from Penn Staters) about searching for ETs...
1408.1134 - pt 2.
1504.03418 - pt 3.
1405.2954 - Avi Loeb's list of times when narrow thinking got in the way...



1408.1141 - The chaos of Uranus' closely-packed, interior satellites.
1504.03320 - Dragonfly found some interestingly-diffuse cluster galaxies.