Woo:

Closest planet ever discovered outside solar system could be habitable with a dayside ocean

This is based on a *lot* of hypothesizing and outright guesswork. Other than some orbital elements and rough mass estimates, nothing is known of ProxCent B, whether it has water or an atmosphere. But analysis shows that there are a few possible scenarios that could result in a livable planet. It might or might not be tidally locked; given how close it’s orbiting the primary, you’d imagine that it would be, but it might, like Mercury, be in a 3:2 resonance. Even if it is locked, if it has enough water it could have a frozen world-ocean like Europa or Ganymede, with the day-side ocean being thawed, and liquid water flowing under the night-side permanent ice cap. *Might.*

To get confirmation, we’ll need to do one or both of two things:

1: Build a Really Big orbiting space telescope and directly image the planet

2: Go there.

Both would be terribly expensive. And neither is something that would be a waste of money. The technology that would be advanced by either of these efforts would likely more than pay for the exercise.