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: smyruaverage 61% UranusUranus7803NeptuneNeptune3419MercuryMercury589VenusVenus844planets 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 52% low temperatureslow temperatures1599lack of oxygenlack of oxygen4685poor gravitypoor gravity1259cosmic rayscosmic rays8363astronautics 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: lanusienkavery easy 81% MercuryMercury6805VenusVenus661EarthEarth263MarsMars593space 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_chvery hard 39% Titan Titan 1214GanymedeGanymede1288lolo2288EuropaEuropa1048astronomy 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 Kołodziejczykvery hard 37% Neil Alden ArmstrongNeil Alden Armstrong2301Guy LalibertéGuy Laliberté992Dennis TitoDennis Tito2854Richard GarriottRichard Garriott1460tourism 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 times18931,321 times1,321 times575450 times50 times86110,000 times10,000 times1518astronomy 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 74% sevenseven1235eighteight7800ninenine1283173173169astronomy 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 66% nonenone2257oneone10388twotwo1822threethree1235mythology 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 56% Mercury onlyMercury only3390Mercury and VenusMercury and Venus9599Mercusy and MarsMercusy and Mars1773there are no such planetsthere are no such planets2220astronomy 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 61% in Australiain Australia1079in Indonesiain Indonesia2488in Antarcticain Antarctica3609on Marson Mars11611volcanoes riddles » Play Solar System quiz and see all the questions.