Which Milky Way Planet…

…has concrete evidence that water once flowed on its surface, and has a canyon system dwarfing the Grand Canyon?

…has two moons, Phobos and Deimos?

…spins on its side?

…is covered in volcanoes and sulfuric acid clouds?

…was made into a “sandwich” in 2020, when two slices of bread were placed on opposite sides of the planet?

…is home to the Great Red Spot, a storm larger than Earth which has been ongoing for hundreds of years?

…is home to the ever-burning Darvaza gas crater, nicknamed the “Door to Hell”?

…is the most similar to Earth in size and shape, often called its “twin”?

…has several active global tectonic plates, including the Nazca, Cocos, and Juan de Fuca plates?

…has days which are twice as long as its years due to its fast orbit and slow rotation?

…is by the hottest planet in our solar system at 460°C, hot enough to melt lead?

…has the most moons?

…has a moon named Triton, who, in Greco-Roman mythology, was the son of this planet’s namesake?

…has the highest gravitational pull, at 2.54g?

…has rings made of ice and dust which extend over 280,000km from its surface, but are only around 9 meters thick?

…was re-classified as a dwarf planet in 2006?

…has a density lower than water?

…ranges from 430°C during the day to -180°C at night?

…was discovered solely by mathematical calculations in 1846?

…is the smallest of the gas giants?

…was the first planet discovered by telescope in 1781?

…was named by an 11 year old girl in Oxford, England in 1930?

…has dust storms which last for months and cover the entire planet?

…has a consistent and clear hexagonal cloud pattern at its north pole?

…does not have a moon, and wouldn’t be able to due to the Sun’s gravitational pull?

…is named after the Roman god of war?