Ten Most Intriguing Exoplanets

Here are 10 most intriguing planets according to a NASA survey.

NASA recently asked over "60 leaders in the field of exoplanet observations" to list "their favorites among the nearly 2,000 known exoplanets."
Based on their responses, here are 10 of the most intriguing.
Number 10. 55 Cancri e
This planet orbits its star in just 18 hours. That short orbit has the planet eternally tidally locked with—and seared by—its own sun. 
Number 9. Kepler-444 system
This system is the oldest-known in existence. It proved that solar systems have been around in the Milky Way since close to its inception. 
Number 8. Kepler-10b
Burnt, Earth-sized and rocky; this planet is at least believed to have an ocean. The only catch is that it's likely an ocean of lava. 
Number 7. Kepler-22b
 Firmly in the habitable zone, this celestial orb is described as, “…a possible water-world planet unlike any seen in our solar system.”
Number 6. CoRoT 7b
Considered a "super-Earth," this body suggests orbs like our own—ones that are potentially habitable—might exist in abundance.  
Number 5. 51 Pegasi b
This planet makes a full solar orbit in just four days and set off an entirely new field of space exploration when it became "the first confirmed exoplanet around a sun-like star."
Number 4. Kepler-16b
Star Wars fans take note: this planet orbits two suns. Just like Luke Skywalker's childhood home of Tatooine. 
Number 3. Kepler-11 system
This compact solar system clued astronomers into the feasibility of small planet systems being more common then previously thought. 
Number 2. HD 209458 b
This exoplanet is nicknamed "Osiris." It was the first planet be caught crossing its star and the first whose light was directly observed by astronomers. 
Number 1. Kepler-186f
The first ever rocky, Earth-sized planet found in a star’s habitable zone, this discovery has long served as a reminder of what can come of technological advancements in space exploration.