how many planets are there in our solar system? 4 Correct Incorrect 4 5 Correct Incorrect 5 8 Correct Incorrect 8 9 Correct Incorrect 9 Correct! Wrong! 8 There were nine until Pluto was downgraded to a dwarf planet. We miss you, buddy. which of these planets DOESN'T have rings? Image: Via NASA Uranus Correct Incorrect Via NASA Uranus Via NASA Image: Via NASA Neptune Correct Incorrect Via NASA Neptune Via NASA Image: Via NASA Saturn Correct Incorrect Via NASA Saturn Via NASA Image: Via NASA Venus Correct Incorrect Via NASA Venus Via NASA Correct! Wrong! Venus Despite being a total planetary diva, no one put a ring on Venus. But guess what? Someone really liked the gas planets in our solar system, because they ALL have rings! which of these planets is gaseous? Getty Images Image: Via NASA Venus Correct Incorrect Via NASA Venus Via NASA Image: Via NASA Uranus Correct Incorrect Via NASA Uranus Via NASA Image: Via NASA Mars Correct Incorrect Via NASA Mars Via NASA Image: Via NASA Mercury Correct Incorrect Via NASA Mercury Via NASA Correct! Wrong! Uranus ISN'T IT BEAUTIFUL? Like Jupiter and Saturn, Uranus is mainly composed of hydrogen and helium. which is the hottest planet in our solar system? Image: Via NASA Venus Correct Incorrect Via NASA Venus Via NASA Image: Via NASA Mercury Correct Incorrect Via NASA Mercury Via NASA Image: Via NASA Mars Correct Incorrect Via NASA Mars Via NASA Image: Via NASA Jupiter Correct Incorrect Via NASA Jupiter Via NASA Correct! Wrong! Venus Even though it's farther from the sun than Mercury, Venus is the hottest planet in our solar system because its atmosphere is better at trapping and retaining heat. In fact, it's so hot on Venus that you can melt lead on the surface. what physical entity separates the inner planets from the outer planets? AN ASTEROID BELT Correct Incorrect AN ASTEROID BELT SIZE Correct Incorrect SIZE COMPOSITION Correct Incorrect COMPOSITION DISTANCE Correct Incorrect DISTANCE Correct! Wrong! Asteroid Belt Though yes, the outer planets are larger, gaseous, and farther away from the sun than the inner planets, the physical entity that separates them is an asteroid belt between Jupiter and Mars. how many planets are there in the outer solar system? 4 Correct Incorrect 4 5 Correct Incorrect 5 8 Correct Incorrect 8 9 Correct Incorrect 9 Correct! Wrong! 4 There are four planets each in the outer AND inner solar systems. They would make great rival polo teams. which planet takes the longest to orbit the sun? Answer Image Uranus Correct Incorrect Uranus Answer Image Saturn Correct Incorrect Saturn Answer Image Neptune Correct Incorrect Neptune Answer Image Jupiter Correct Incorrect Jupiter Correct! Wrong! Neptune Neptune is the farthest planet from the sun, and it takes about 165 years for this blue giant to make a full rotation around it. Basically, we're seeing Neptune the same way people in the 1850s saw it. Crazy, huh? which of these planets ISN'T gaseous? Answer Image Neptune Correct Incorrect Neptune Answer Image Venus Correct Incorrect Venus Answer Image Saturn Correct Incorrect Saturn Answer Image Uranus Correct Incorrect Uranus Correct! Wrong! Venus With its abundance of carbon dioxide, Venus might be super gassy, but like its fellow inner planets Mercury, Earth, and Mars, it has a solid crust. which gaseous planet has the smallest diameter? Image: Via NASA Uranus Correct Incorrect Via NASA Uranus Via NASA Image: Via NASA Saturn Correct Incorrect Via NASA Saturn Via NASA Image: Via NASA Neptune Correct Incorrect Via NASA Neptune Via NASA Image: Via NASA Jupiter Correct Incorrect Via NASA Jupiter Via NASA Correct! Wrong! Neptune Yup, this windy planet is the baby! Not by much, though. Neptune's diameter is 49,244 km and Uranus, which is only slightly bigger, has a diameter of 50,724 km. how much would a 100-pound object weigh if you were to set it on one of Jupiter's clouds? Getty Images 91 Correct Incorrect 91 240 Correct Incorrect 240 520 Correct Incorrect 520 908 Correct Incorrect 908 Correct! Wrong! 240 That's because Jupiter is HUGE and has a strong gravitational pull. Just think of Jupiter being a very enthusiastic hugger! True or false: all of the other planets in the solar system can fit between the earth and the moon Getty Images True Correct Incorrect True False Correct Incorrect False Correct! Wrong! True Isn't that wild? Think about how big Jupiter and Saturn are. Those gas giants and every single other planet can fit between our planet and our moon, and the moon STILL has such an effect on our tides while shining so bright and beautifully in our sky. how many earths can fit inside saturn? Getty Images over 100 Correct Incorrect over 100 over 300 Correct Incorrect over 300 0ver 500 Correct Incorrect 0ver 500 over 700 Correct Incorrect over 700 Correct! Wrong! Over 700 And some of Saturn's rings are thousands of miles wide. It would take over a week to drive over some of them. We are so, so tiny. how many moons does mars have? none Correct Incorrect none one Correct Incorrect one two Correct Incorrect two three Correct Incorrect three Correct! Wrong! Two Mars has two little moon sons called Phobos and Deimos, named after the Greek gods of fear and panic respectively. They look kind of weird for moons and are shaped like potatoes. #same. how many earth days does it take mercury to orbit the sun? Getty Images 88 days Correct Incorrect 88 days 224 days Correct Incorrect 224 days 317 days Correct Incorrect 317 days 415 days Correct Incorrect 415 days Correct! Wrong! 88 Days Hence Mercury being aptly named after the Roman messenger god. which planet has the longest day? Answer Image Venus Correct Incorrect Venus Answer Image Uranus Correct Incorrect Uranus Answer Image Neptune Correct Incorrect Neptune Answer Image Mercury Correct Incorrect Mercury Correct! Wrong! Venus Venus takes 5,832 hours to make a full rotation on its axis, BACKWARDS, might I add (relative to the other planets). That's about 243 Earth days. Ma'am. which planet(s) spin in the opposite direction of all the others? Venus and Uranus Correct Incorrect Venus and Uranus Saturn and Neptune Correct Incorrect Saturn and Neptune Uranus Correct Incorrect Uranus None of them Correct Incorrect None of them Correct! Wrong! Venus and Uranus There are several theories as to why. One theory is that these planets were hit by large objects that changed their rotation early on. Which of these planets lack moons? Getty Images Mercury and Venus Correct Incorrect Mercury and Venus Mars and Uranus Correct Incorrect Mars and Uranus Neptune and Mercury Correct Incorrect Neptune and Mercury Uranus and Venus Correct Incorrect Uranus and Venus Correct! Wrong! Mercury and Venus The two planets closest to the sun don't have any moons. Why? Well...because they're close to the sun. With the sun's gravitational pull, the margin for a stable moon orbit is very narrow. Chances are high that they would be tractor-beamed into the sun and destroyed. ¯\_(ツ)_/¯ which planet is closer to earth? Getty Images Answer Image Mars Correct Incorrect Mars Answer Image Venus Correct Incorrect Venus Correct! Wrong! Venus Sorry Mars :(. At least you have your two moons to keep you company. Venus has no moons!