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Question 1 of 45

How old is the sun?

The sun formed about 4.603 billion years ago due to the collapse of a part of a giant molecular cloud which mostly consisted of hydrogen and helium.
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How many planets are there in our solar system?

There are 8 planets in our solar system currently, but previously there were 9.
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Which is the biggest planet in our solar system?

Jupiter is the largest planet in our solar system and has 1300 times the volume of the Earth!
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Pluto is _______?

In 2006, Pluto lost its status as a planet and is now considered a cold dwarf planet.
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Which of these phenomena occurs on Mars?

Mars experiences dust storms that arise mostly during northern spring and summer on Earth, and has wind speeds as high as 60 miles per hour.
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How long is a day on Saturn?

This planet has an estimated velocity of 9.87km/s, which is why it takes approximately 10 hours and 42 minutes to complete a single sidereal rotation.
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How many moons does Jupiter have?

Jupiter has the most number of moons than any other planet in the solar system.
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Which of these planets is not a gas giant?

Venus is not a gas giant as it is not composed of gases such as hydrogen and helium.
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Which of these planets does not have a moon?

Out of the 8 planets, Mercury and Venus are the only two planets that do not have their own moon.
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Which of these planets looks red in the night sky?

Mars appears red from the Earth as it has several dust storms which whip red dust into the light atmosphere around the planet.
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Which is the coldest planet in the solar system?

Neptune is the coldest planet in the solar system and it is quite dark, cold, and very windy.
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Which planet has the fastest revolution time?

Mercury has the fastest revolution among all the planets. It completes one revolution around the Sun in 88 days.
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When do storms of gases become visible in the chromospheres of the Sun?

During a solar eclipse, the moon blocks out the bulk of the Sun and allows you to see the storm of gases present in the chromospheres of the Sun.
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The Asteroid belt lies between which of these two planets?

The Asteroid belt that lies between Mars and Jupiter is the circumstellar disc and is occupied by numerous irregularly shaped bodies called asteroids or minor planets.
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Which planet has a temperature so hot that it can melt lead?

Venus is extremely hot as it is surrounded by a very thick atmosphere which is about 100 times more massive than the atmosphere on Earth.
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Which of these planets has the highest density in the solar system?

Earth has the highest density of any planet in the entire solar system at 5.514g/cm3.
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The planets on either side of the earth are___?

Earth falls between Venus and Mars and is the third planet from the Sun.
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What is it called when the moon moves between the Earth and the Sun?

A solar eclipse occurs when the moon moves between the Earth and the Sun, and these can last up to 7.5 minutes.
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What is made out of ice, dust, rock, and frozen gases?

Comets even have two tails, one made from dust and the other made from plasma.
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How many dwarf planets exist in our solar system?

There are only five dwarf planets- Ceres, Makemake, Eris, Haumea, and Pluto.
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What are Uranus, Saturn, Jupiter, and Neptune called?

Gas Giants are planets that are away from the Sun and are primarily made up of gases and have rocky centers.
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Which of the planet’s has a revolution time that is shorter than its rotation time?

Venus takes 225 days to revolve around the Sun, whereas, Earth takes 365 days.
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What’s the highest measured wind speeds at Neptune?

Neptune has seriously fast winds and it can reach up to 1,500 miles per hour. In fact, the speed of the wind is faster than the speed of sound on Earth.
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What are Venus, Mars, Earth, and Mercury called?

These planets are called terrestrial planets as they are composed primarily of silicate rocks or metals, and the inner planets closest to the Sun belong to this group.
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Which of these planets rotates in the opposite direction to the direction of earth’s rotation?

Venus spins in the opposite direction to that of the Earth. Scientists believe that the Sun's gravitational pull on the planet's very dense atmosphere can cause this.
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Which planet has the highest mountain and deepest valley in our solar system?

Mars has the highest mountain that reaches a towering height of 27 miles and even has the deepest valley in the solar system.
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Can you guess how much a 150-pound person weigh on Mars?

A 150-pound person weight 57 pounds on Mars as it has less gravity than Earth.
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How much time does it take for the light from the Sun to reach the Earth?

The sunlight travels at the speed of light and this is why it takes an average of 8 minutes and 20 seconds for sunlight to reach the Earth.
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Which of these planets is named after a Greek God and not Roman Gods like other planets?

According to legends, Uranus was the father of Saturn and the grandfather of Jupiter, and is the only planet to be named after a Greek God and not Roman Gods.
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Which of these planet lies at the outermost orbit of the solar system?

Neptune is the planet that lies at the outermost orbit of the solar system as it is the last one in our solar system.
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Which of these aptly describes the atmosphere surrounding Venus?

The atmosphere of Venus is made up mainly of carbon dioxide and the planet is surrounded by thick clouds of sulphuric acid. As it is hot and thick, you cannot survive a visit to the planet because the air is poisonous. The enormous weight of the atmosphere can crush a person, and the temperatures are high enough to melt lead.
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The word “asteroid” was coined by ______?

After the discovery of Ceres, several similar-looking bodies that looked like points of light or stars were discovered in space. This inspired Sir William Herschel, a British astronomer, to propose the term "asteroid" which means "star-like." This word is derived from the Greek word "asteroeid?s", where "aster" stands for "star" and "eidos" means a form or a shape.
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How many moons does Mars have?

Mars has two small moons named Phobos and Deimos. Asaph Hall, an American astronomer, was about to give up his frustrating search for a Martian moon, but was urged by his wife, Angelina, to not give up. The next night he discovered Deimos and six nights later he discovered Phobos.
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Where is the Olympus Mons, the largest volcano in the solar system located?

The Olympus Mons, the largest known volcano in the solar system, is located on Mars. This volcano is 72,000 feet high and over 600 kilometers at the base. It is surrounded by a well-defined scarp that is up to six kilometer high in some places.
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The moons Oberon and Titania belong to which planet?

Uranus has 27 known moons including Oberon and Titania. The moons are named after characters that appear in the works of William Shakespeare and Alexander Pope. Oberon and Titania were characters that appeared in Shakespeare's comedy "A Midsummer Night's Dream."
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What is the Great Red Spot on Jupiter?

Jupiter is the largest planet in the solar system and it has stripes and swirls that are cold windy clouds of water and ammonia that float in an atmosphere of hydrogen and helium. The Great Red Spot on Jupiter is a giant storm that is bigger than the Earth, and has raged for hundreds of years!
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Which planet was discovered by Urbain Jean Joseph Le Verrier?

Urbain Jean Joseph Le Verrier was a teacher of astronomy at the Ecole Polytechnic Paris. He studied the planets Mercury and Uranus, and detected unusual motions. He thought that an asteroid belt between these planets was the cause of this phenomenon. Then, he used math to calculate the location of the new planet, and he discovered Neptune!
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Which is the largest moon in the solar system?

Ganymede is the largest moon of Jupiter and is the most massive one in the solar system as well. It is composed of equal amounts of silicate rock and water ice. This moon was discovered by Galileo Galilei, the first person to observe it on January 7, 1610.
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Which is the largest object in the Kuiper belt?

The Kuiper belt is a disc-shaped region located in the outer solar system, past the orbit of Neptune. There are at least three dwarf planets in the Kuiper belt: Pluto, Makemake, and Haumea, with Pluto being the largest of them all.
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Where did the Allende Meteorite crash on Earth?

The Allende meteorite was originally the size of a car before it broke into hundreds of fragments which weighed many tons. It crashed in Mexico and is considered one of the most studied meteorites of all time. Carbonaceous chondrites like the Allende contain the most primitive known matter, defining the age of our solar system.
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Which is the closest spiral galaxy to the Milky Way?

The Andromeda Galaxy is the closest galaxy to the Milky Way. In fact, it is one of the few galaxies that can be seen unaided from the Earth. It is estimated that in approximately 4.5 billion years, the Andromeda Galaxy and the Milky Way will collide and the result will be a giant elliptical galaxy.
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Which is the only large moon in the solar system that orbits in a direction opposite to its planet’s rotation?

Triton is Neptune's largest moon and is the only large moon in the entire solar system to orbit in the opposite direction to its planet's rotation. This phenomenon is known as retrograde orbit.
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Which planet has 13 rings?

Uranus has 13 faint rings which are believed to be relatively younger than the other planets, approximately 600 million years old. Uranus rotates at a nearly 90-degree angle from the plane of its orbit. This tilt is what makes Uranus appear to spin on its side, and it orbits the Sun like a rolling ball.
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The spacecraft Pioneer 11 is associated with which planet?

NASA's Pioneer 11, the twin aircraft to Pioneer 10, was sent to study Saturn up close. In fact, it was the first human-made project to fly past Saturn and even returned with the first pictures of the polar regions of Jupiter.
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Which planet has the strongest gravitational pull?

Jupiter has the strongest gravitational pull among all the planets in the solar system. It is the largest planet and has a mass of 1.898 octillion kilograms, which is 317 times more than that of the Earth. This strong gravitational pull is what might have prevented the formation of a planet between Jupiter and Mars in the asteroid belt.
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How well do you know our solar system?

06th June, 2019

The Earth is not the only planet in our solar system, and our solar system is not the only one in the universe! The universe and our solar system is full of marvels and has more to it than "shooting stars." If the wonders of the solar system have always captivated you, then take this quiz and find out how well you know the different facets of our solar system.

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