Finding habitable planets around white dwarfs

Well if you don't look for them, you'll never find them...

Transit surveys for Earths in the habitable zones of white dwarfs

Discusses the habitable zone of white dwarf stars, and how to go about searching for planets there. Whether there are any is another matter, they'd either have to form there or migrate there after the red giant phase of the star's evolution.

Well this idea has now got a press release. Would certainly be an odd type of planetary system.

Interesting, but if it was a "lifeboat", we'd have to find yet another habitable planet quick. And what if there is one 50 light years away, and we need to leave Earth cause we destroyed it. We'll travel 2,000 years to destroy another one.