Only three planets have real discovery times.
Pluto which is now a dwarf planet was found bye Clyde tombaugh
uranus was discovered by sir William herschel
neptune was discovered by john couch Adams
the found different rock on the planets
Extrasolar planets are planets found orbiting stars other then our own.
An asteroid belt.
inner planets and gas giants
NO- People have found water on other planets but there is no life there.
There is 8 planets in our solar system now, becuase scientists no longer classify Pluto as a planet. There where about 400 planets found so making it about 399 so about 391 exo-planets have been found. Hope that answers your question!
The first four planets closest to the Sun are the four terrestial planets.
no they're found in space...
There are 464 extrasolar planets, and 8 planets within our Solar System. This makes a total of 470 known planets.
mars and uranus
Found planets and satellites.
scientists who found them