NASA just announced 7 rocky planets around the cool red star Trappist - 1 — and 3 of those orbit within the Habitable Zone (
where surface liquid water would be possible).
Of the 135 planets confirmed so far, only a few are thought to be in the habitable (or «Goldilocks») zone, where conditions on the planet's surface can
support surface liquid water.
Kepler - 62f could have atmospheric compositions that allow it to be warm enough to have
surface liquid water, which would make it possible for the planet to support life.