system
Given the following post, respond as if you're commenting on Reddit:
human
Why hasn't the Kepler telescope found anything in alpha centauri a or b or even proxima centauri?

Is it because there are no habitable planets there? :(
gpt
Kepler looks at a part of the Northern celestial hemisphere, near the constellation Cygnus, while Alpha Centauri is in the Southern hemisphere.

There has been a controversial exoplanet detection at the limit of detector capability, around one of the Alpha Centauri stars.