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 60% UranusUranus6298NeptuneNeptune2888MercuryMercury542VenusVenus757planets 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 49% low temperatureslow temperatures1398lack of oxygenlack of oxygen4000poor gravitypoor gravity1130cosmic rayscosmic rays6454astronautics 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 80% MercuryMercury4559VenusVenus485EarthEarth201MarsMars436space 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 833GanymedeGanymede989lolo1674EuropaEuropa729astronomy 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 38% Neil Alden ArmstrongNeil Alden Armstrong1717Guy LalibertéGuy Laliberté706Dennis TitoDennis Tito2212Richard GarriottRichard Garriott1037tourism 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 56% 800 times800 times14171,321 times1,321 times418450 times50 times67210,000 times10,000 times1190astronomy 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% sevenseven907eighteight5950ninenine1069173173147astronomy 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 63% nonenone1816oneone7269twotwo1397threethree1001names 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 only2507Mercury and VenusMercury and Venus7421Mercusy and MarsMercusy and Mars1376there are no such planetsthere are no such planets1687astronomy 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 Australia794in Indonesiain Indonesia1894in Antarcticain Antarctica2698on Marson Mars9182volcanoes riddles » Play Solar System quiz and see all the questions.