Explanation: Mercury is the planet that orbits the closest to the Sun.

Explanation: The planet which is farthest from the sun is Neptune.

Explanation: Even though Mercury is closer to the Sun; Venus is the hottest planet in our solar system.

Explanation: Jupiter is the largest planet in the solar system and the fifth planet from the sun. The gas giant has a long; rich; history of surprising scientists.

Explanation: Mercury is the smallest planet in our solar system. It's a little bigger than Earth's Moon.

Explanation: Uranus holds the record for the coldest temperature ever measured in the Solar System: a very chilly -224℃.

Explanation: Saturn has rings around it. These are belts of small debris. These rings may be seen from the Earth with the help of powerful telescopes.

Explanation: Mars is sometimes called the Red Planet. It's red because of rusty iron in the ground.

Explanation: During the total eclipse; the Sun's corona is visible.

Explanation: It takes sunlight an average of 8 minutes and 20 seconds to travel from the Sun to the Earth.

Explanation: The different shapes of the Moon that we see at different times of the month are called the Moon's phases.

Explanation: When the moon is not visible at night in a clear sky; the moon is called new moon.

Explanation: Mercury has the shortest year of all the planets in our solar system – 88 days.

Explanation: The brightest star in the sky is Sirius; also known as the Dog Star

Explanation: Venus is the first celestial body to become visible in the sky at evening and is the last one to disappear from the sky at sunrise. This is why it is known as the Morning and the Evening star.

Explanation: The Sun is 150.6 million km from Earth

Explanation: Earth makes one complete rotation on its axis every 23 hours and 56 minutes; which is rounded up to 24 hours.

Explanation: The Moon takes about one month to orbit Earth (27.3 days to complete a revolution; but 29.5 days to change from New Moon to New Moon).

Explanation: Earth is the third planet from the Sun.

Explanation: Earth takes 365.26 days to complete its one revolution (i.e. in its orbit around the Sun).

Explanation: When two full Moons occur in the same month it is called Blue Moon.

Explanation: Saturn is the largest planet after Jupiter in the solar system.

Explanation: When the Moon come between the Sun and the Earth; it is known as Solar Eclipse.

Explanation: When the Earth come between the Sun and the Moon; it is known as Lunar Eclipse.

Explanation: Moon is the Satellite for Earth; Moon revoles around Earth all the time.

Explanation: Sputnik 1 was the first artificial satellite to orbit Earth, it was launched by Soviet Union on Oct 4, 1957.

Explanation: Venus has the longest day of any planet in the solar system. It takes approximately 243 Earth days to complete one full rotation on its axis.

Explanation: Mercury has the lowest gravity among the planets due to its small size and mass. Mercury's gravity is about 38% of Earth’s, which means objects would weigh only about a third of what they do on Earth.

Explanation: Both Mercury and Venus are the only planets in our solar system without moons.

Explanation: Jupiter has the shortest day in our solar system, with one day taking only about 10 hours for the planet to rotate once

Explanation: Neptune takes approximately 165 Earth years to complete one full orbit around the Sun.