How many confirmed exoplanets have been found with potential to support surface life as we know it? Twenty-eight (28). Nobel nominee Geoff Marcy should be proud. The Planetary Habitability Laboratory at the University of Puerto Rico at Arecibo is keeping track. See these graphical representations with:
- Distances from Earth (light year)
- Stellar Flux
- Orbital Analysis
- Stellar Systems
- Locations in the Night Sky
Here is a primer on finding exoplanets. See the full catalog of habitable exoplanets here. There are more than 1,800 confirmed exoplanets that are not necessarily hospitable. See the full Periodic Table of Exoplanets here. See these videos of artistic representations of what an approach to the identified exoplanets might be like.