Keep your letter short, focused, and interesting. In general, letters should be under 200 words, 150 or less is best; stay focused on one (or, at the most, two) main point(s); and get to the main point in the first two sentences. If possible include interesting facts, relevant personal experience, and any local connections to the issue.
Uranusâ Moons â 27. There are 27 known moons orbiting Uranus, the 7th planet in the solar system. The five largest are Puck, Miranda, Ariel, Umbriel, Titania, and Oberon. The innermost moons are similar in characteristics with the thin rings.
Quick Answer. According to NASA, Jupiter's moon, Ganymede, is the largest moon in the solar system. It has a diameter of 2,631 kilometers. Ganymede is larger than both Pluto and Mercury and is 3/4 the size of Mars. Unlike many other moons, Ganymede has a core that generates a substantial magnetic field. Continue Reading