Solar System questions This is a list of recently added questions about Solar System. Play Solar System quiz and see all the questions. Which planet of the solar system has the smallest surface?Mercury has a surface of 75x10^6 km^2, which is equal to 14,7% of Earth' surface.Created by: lanusienkaspace riddles »easy 77% MercuryMercury1546VenusVenus180EarthEarth96MarsMars183 Which is the only moon with active volcanoes?Lo is a very tiny moon that is enormously influenced by the gravity of Jupiter. The great forces of Jupiter and its other moons exert such long pulls on lo that it deforms continuously from strong internal friction. These tides produce tremendous amount of internal friction, which heats the moon and enables its volcanic activityCreated by: ippili_chastronomy riddles »very hard 38% Titan Titan 325GanymedeGanymede423lolo647EuropaEuropa279 What is the name of first in history cosmic tourist (astrotourist)?Dennis Tito. Dennis Anthony Tito is an American engineer and multimillionaire, most widely known as the first space tourist to fund his own trip into space. Tito paid a reported $20 million to the Russian Federal Space Agency.Created by: Paweł Kołodziejczyktourism riddles »very hard 38% Neil Alden ArmstrongNeil Alden Armstrong836Guy LalibertéGuy Laliberté346Dennis TitoDennis Tito1051Richard GarriottRichard Garriott512 How many times is Jupiter's volume larger than Earth's volume?1,321 times. Jupiter is so big, that it is almost the size of a star. The smallest known red dwarf is just 16 percent larger in diameter than Jupiter.Created by: K.R.A.C.planets riddles »hard 55% 800 times800 times7071,321 times1,321 times220250 times50 times37310,000 times10,000 times693 How many planets does the Solar System consist of?Eight. These are Mercury, the Venus, the Earth, Mars, the Jupiter, the Saturn, the Uranus and the Neptune. The Pluto is excluded from the list since 2006, and it is classified as one of dwarf planets (not even the largest of them).Created by: Paweł Kołodziejczykastronomy riddles »easy 72% sevenseven492eighteight3312ninenine68917317388 How many planets in the Solar System are not named after a Greek or Roman god?One. It's the Earth.Created by: globalquiz.orgnames riddles »average 60% nonenone1126oneone3986twotwo874threethree617 Which planets in the Solar System have no natural satellites?Mercury and Venus. Only Mercury and Venus have no natural satellites.Created by: globalquiz.orgastronomy riddles »hard 54% Mercury onlyMercury only1577Mercury and VenusMercury and Venus4299Mercusy and MarsMercusy and Mars890there are no such planetsthere are no such planets1111 Olympus Mons is the largest known volcano. Where is it?On Mars. Olympus Mons (Latin for Mount Olympus) is a large shield volcano on the planet Mars, having a height of nearly 22 km (14 mi). Being a shield volcano, it has a very low profile. The average slope on the volcano's flanks is only 5°. Because of that, an observer standing on the Martian surface would be unable to view the entire profile of the volcano, even from a great distance.Created by: Trương Ngọc Hùngvolcanoes riddles »average 61% in Australiain Australia554in Indonesiain Indonesia1299in Antarcticain Antarctica1769on Marson Mars5835 Where do the names of Uranus moons (Ariel, Umbriel, Miranda, Titania, Oberon) come from?Shakespeare's characters. William Herschel, Englishman, discoverer of Uranus and its major moons, was very patriotic for naming. He originally named Uranus as "George Star" to honour king of England, but the name was changed later.Created by: Cleotheater riddles »hard 46% Shakespeare's charactersShakespeare's characters4578Roman godsRoman gods2473German and Arthurian legendsGerman and Arthurian legends1748Roman emperors and their wivesRoman emperors and their wives964 How long does it take the sunlight to reach the Earth?8 minutes. The distance from Earth to the Moon is 1.2 light seconds. The distance to the nearest star (Proxima Centauri) is 5.46 years.Created by: Hitter smasherSun riddles »average 69% 3 seconds3 seconds18951 minute1 minute8078 minutes8 minutes80921 hour1 hour858 Play Solar System quiz and see all the questions.