One that we know of; our own. We had hoped to find some traces of life on Mars, but if there ever was any, it probably all died a billion years ago when Mars lost its supposed atmosphere. (These are guesses, of course.) It's unlikely that there is any life on any of the other planets in our solar system.
Moons, you say? It's remotely possible that some kind of life may exist in the oceans that we suspect may exist beneath the icy frozen surface of Jupiter's moon Europa, or even more remotely, on Saturn's moon Titan. (Did you hear all those "weasel words" like "might", "perhaps", and "may"? All guesswork at this point.)
Given that we've discovered a difficult-to-believe number of planets orbiting other stars, and that there are probably a TRILLION stars in our solar system, there may be anywhere from a billion to several trillion planets in the Milky Way. It would be tough to believe that NONE of them host any kind of life.
if there were no solar system then there would be no life?
No alien life has been found so far; either inside or outside our Solar System.
Yes, the planet Earth is part of the solar system, so all the life on Earth is in the solar system. Yes, our Earth is part of the Solar System. As to life on other planets - both within our Solar System and in other solar systems (planets around other stars), nothing has been proven yet, one way or the other. Specifically, no life has been found on other planets. It would seem probable, though, that what happened on Earth can happen again - perhaps on nearly any planet, perhaps only occasionally.
There is no "second smartest" planet in the solar system. By a stretch, Earth may be regarded as the "smartest" due to the presence of intelligent life. However, since it appears that no other planets in the solar system have life, they are all equally "not smart."
to find life beyond our solar system and to improve everyday life!
if there were no solar system then there would be no life?
mars
It's the only solar system we can confirm has life on a planet.
There is no known life anywhere in our solar system except on Earth.As currently defined our solar system only has 8 planets.
No alien life has been found so far; either inside or outside our Solar System.
it has life on it
You. Me.
Life?
That is a mystery my friend, is it not?
Yes, the planet Earth is part of the solar system, so all the life on Earth is in the solar system. Yes, our Earth is part of the Solar System. As to life on other planets - both within our Solar System and in other solar systems (planets around other stars), nothing has been proven yet, one way or the other. Specifically, no life has been found on other planets. It would seem probable, though, that what happened on Earth can happen again - perhaps on nearly any planet, perhaps only occasionally.
Up to now, Earth is the only planet in our solar system that can sustain life as we know it.
There is no other planet in the Solar System that can, without assistance, support human life.