It is very unlikely there are unknown planets in our system,, although beyond the kuiper belt, at the very far edge of our solar system some believe there may be another planet. It is referred to as "Planet X".
In the inner solar system, the planets are rocky and it is possible to have water as a vapor or a liquid on the surface. In the outer solar system the planets are gas giants and water can only exist as ice.
Within our solar system at the present time, no. Regarding planets orbiting other stars outside our solar system, our present technology is nowhere near able to tell.
Uranus and Neptune are the two planets known as the ice giants in our solar system. They are composed mostly of elements such as water, ammonia, and methane, which exist in solid form within their atmospheres.
Currently there are 353 known extrasolar planets (that is to say, outside of our solar system), but it is unknown how many planets exist in the universe.
Probably, but impossible to tell as we are only just seeing planets within our own galaxy.
There are eight planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Plants do not exist on any of the planets in our solar system.
Asteroids and Comets.
No, the planets in our solar system rely on the Sun for light, energy, and gravity to maintain their orbits. If the Sun were to disappear, the planets would no longer have a source of heat and light, and they would eventually drift off into space in various directions.
There are 8 planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
Yes Saturn and the other planets are in our Solar System. Many hundreds of planets exist outside of our solar system. These are often compared to the gas giants (Jupiter and Saturn) because of their size and composition.
Scientists theorize that life could potentially exist on other planets or moons within our own solar system, such as Mars, Europa, or Enceladus, due to the presence of water or other conditions that could potentially support life. Looking beyond our solar system, exoplanets within the habitable zone of their star are also considered potential candidates for life.
They would fly randomly through space.