Interesting result indicating presence of a planet in the "goldilocks zone" of a white dwarf system some 117 ly away:
www.bbc.co.uk
"This is the first time that anything has been seen in the habitable zone of a white dwarf. And thus there is a possibility of life on another world orbiting it,"
academic.oup.com

Life could exist on planet orbiting 'white dwarf' star
Experts may have detected a planet in the habitable zone of a nearly dead star called a white dwarf.

"This is the first time that anything has been seen in the habitable zone of a white dwarf. And thus there is a possibility of life on another world orbiting it,"

Relentless and complex transits from a planetesimal debris disc
ABSTRACT. This article reports quasi-continuous transiting events towards WD 1054–226 at d = 36.2 pc and V = 16.0 mag, based on simultaneous, high-cadence,
