I believe you mean Mars (under current exploration) ... but several satellites are known to have water too.
Mars
earth is the only planet with most water cant you see you live in the earth. earth is the solar systems water, plants, and human planet you know? so that's your answer eath is the planet with the most water.
mars
Mars is believed to have had liquid water in the past based on evidence from river valleys, lake beds, and minerals that form in the presence of water. This suggests that ancient Mars was more hospitable to life than it is today.
Mars. It has features that look like dried-up river beds, etc.
Mars is the planet thought to have had liquid water in the past based on various geological features such as canyons, river valleys, and mineral signatures found on the surface. These suggest that Mars likely had a more hospitable environment billions of years ago where liquid water could have existed.
Atmospheric pressure is an important factor in keeping liquid water on the surface of a planet. With no atmosphere, liquid water would quickly escape into space. It would depend on various factors such as the temperature and escape velocity of the planet of course. Scientists think liquid water existed on Mars in the past when the atmosphere was a lot denser. Water does exist on the surface Mars, but only as ice.
Mars shows signs of water erosion on its surface, including features like valleys, river channels, and delta deposits. These indicate that liquid water flowed on the planet's surface in the past.
Features such as dried-up river channels, lake beds, and mineral deposits that require water to form suggest the possibility of liquid water on Mars in the past. Recent discoveries of recurring slope lineae (dark streaks on Martian slopes) also indicate that liquid water may exist on the planet's surface today.
After Earth, the next planet in our solar system is Mars. It is the fourth planet from the Sun and is known for its red color due to iron oxide on its surface. Mars is also believed to have liquid water in the past.
Mars is known to have dry river beds, which are evidence of past water flow on the planet. These ancient river channels suggest that liquid water may have once existed on the Martian surface.
Mars