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 58% UranusUranus5251NeptuneNeptune2501MercuryMercury501VenusVenus674planets 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 temperatures1231lack of oxygenlack of oxygen3474poor gravitypoor gravity1012cosmic rayscosmic rays5344astronautics 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% MercuryMercury3155VenusVenus375EarthEarth175MarsMars338space 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 41% Titan Titan 530GanymedeGanymede748lolo1234EuropaEuropa474astronomy 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 40% Neil Alden ArmstrongNeil Alden Armstrong1279Guy LalibertéGuy Laliberté525Dennis TitoDennis Tito1768Richard GarriottRichard Garriott770tourism 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 times10241,321 times1,321 times328850 times50 times51610,000 times10,000 times935astronomy 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% sevenseven685eighteight4775ninenine928173173127astronomy 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% nonenone1415oneone5442twotwo1137threethree807names 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 57% Mercury onlyMercury only1964Mercury and VenusMercury and Venus6097Mercusy and MarsMercusy and Mars1131there are no such planetsthere are no such planets1359astronomy 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 63% in Australiain Australia656in Indonesiain Indonesia1557in Antarcticain Antarctica2176on Marson Mars7728volcanoes riddles » Play Solar System quiz and see all the questions.