I was watching "The Sky at Night" last night, a long running (VERY long running) BBC TV show presented by monocle wearing national treasure Sir Patrick Moore. For those not familiar with the show, it's a low-budget but well presented guide to astronomy, with the emphasis upon guiding novices in the science into getting involved. Brian May (of Queen fame) appears on it a lot, being a keen astronomer (as well as a 40k fan, incidentally.)
Anyway, last night a lot of the show was discussing the constellations visible over summer. Talk turned to black holes, and the relative lack of easily available visible black holes. There was general discussion about the topic, and reference to the supermassive black hole said to lurk in the centre of the milky way galaxy.
It occurred to me that I am not really aware of any detailed treatments of black holes in the 40k canon. Does anyone know of any?
There's a lot of warp rifts (Eye of Terror, the Maelstrom) and anomalies (like the Hadex anomaly) but I've never understood these to be black holes in the classic sense. My view is always that these are distinct and seperate phenomena; black holes are caused by the physical laws of the real universe, as opposed to warp rifts, which are created by the weird rules contained within the warp.
Or am I wrong on that? Are black holes the same thing as warp rifts? Personally I think they're not, but I'd be interested to hear other people's views, and I'm certainly prepared to be proven wrong!
And how would black holes affect travel and spacecraft in 40k?
Any thoughts?