I've had a few emails forwarding the announcement of a conference celebrating the 40th annversary of Halo Nuclei.  The circular is not a very colourful, but I paste the top of the pdf below. Since the image is not clickable (except to see it at higher resolution), here is the link above if you want to follow it. I have never worked on halo nuclei – light nuclei in which the last particle (or two or three) are not tighly bound to all the others, but which exist in a very extended halo – but that