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 is this globe with such a bland look without any details?Uranus. Upper parts of Uranus' atmosphere are composed of condensed hydrocarbons, mainly methane crystal particles. Contrary to the rest of gas giant planets, it's hard to observe clouds and storm bounds.Created by: smyruhard 59% UranusUranus5417NeptuneNeptune2548MercuryMercury512VenusVenus688planets riddles » Mars colonisation is a hype topic. What is the biggest threat for those wishing to take a part in a journey to Mars?Cosmic rays. The only efficient protection against high energetic cosmic radiation, one we are granted with, is Earth magnetic field. Both during a long flight to Mars and through the stay on the planet, that did not form electromagnetic field, astronauts would be exposed to ionization. Created by: smyruhard 48% low temperatureslow temperatures1253lack of oxygenlack of oxygen3537poor gravitypoor gravity1033cosmic rayscosmic rays5519astronautics riddles » 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: lanusienkaeasy 78% MercuryMercury3345VenusVenus396EarthEarth182MarsMars357space riddles » 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_chhard 42% Titan Titan 551GanymedeGanymede790lolo1337EuropaEuropa505astronomy riddles » 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 Kołodziejczykhard 41% Neil Alden ArmstrongNeil Alden Armstrong1328Guy LalibertéGuy Laliberté543Dennis TitoDennis Tito1863Richard GarriottRichard Garriott800tourism riddles » 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.hard 57% 800 times800 times10711,321 times1,321 times344950 times50 times53410,000 times10,000 times968astronomy riddles » 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 Kołodziejczykeasy 73% sevenseven710eighteight4977ninenine954173173129astronomy riddles » How many planets in the Solar System are not named after a Greek or Roman god?One. It's the Earth.Created by: globalquiz.orgaverage 61% nonenone1456oneone5621twotwo1170threethree828names riddles » Which planets in the Solar System have no natural satellites?Mercury and Venus. Only Mercury and Venus have no natural satellites.Created by: globalquiz.orghard 58% Mercury onlyMercury only2009Mercury and VenusMercury and Venus6477Mercusy and MarsMercusy and Mars1174there are no such planetsthere are no such planets1398astronomy riddles » 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 Hùngaverage 64% in Australiain Australia680in Indonesiain Indonesia1605in Antarcticain Antarctica2244on Marson Mars8148volcanoes riddles » Play Solar System quiz and see all the questions.