Which planet is known for a Great Dark Spot and has a moon named Triton?

• A. Pluto
• B. Neptune
• C. Uranus
• D. Mercury

Answer: (B)

The planet in question is Neptune. The Great Dark Spot is a prominent storm in Neptune’s atmosphere, illustrating the intense and dynamic weather on this ice giant. Neptune also has Triton as its largest moon, which orbits Neptune and is notable for features like geysers and a likely captured Kuiper belt object. Since both a major atmospheric storm and a moon named Triton are associated with this planet, Neptune is the best fit. Other options don’t share both features: Mercury has no moons, Uranus has different moons and no famous Great Dark Spot, and Pluto (a dwarf planet) isn’t known for a moon named Triton.