Our Solar System: A Wonderful Voyage Through Space

Our Solar System


The Solar System, Yes! Our Solar System. You can call it your home. Universe is vast and unimaginable. In future, scientists may find more about it, however, today we know that we have an address in this vast universe. It is our solar system. The family of Sun, planets of sun, their moons and many other objects.

The solar system is an amazing cosmic system that we call home. It is made up of a brilliant star, the Sun, and a plethora of celestial bodies, including eight planets, countless moons, asteroids, comets, and other intriguing items. In this essay, we will go on a deep study of our solar system, marveling at its beauty and comprehending its complicated workings.

Why is it Called the Solar System?

There are many planetary systems like ours in the universe, with planets orbiting a host star. Our planetary system is called “the solar system” because we use the word “solar” to describe things related to our star, after the Latin word for Sun, “solis.”

~ Source NASA Website (https://nasa.gov)

The Sun

The Sun
Source NASA Website (https://nasa.gov)

The Sun, a massive ball of hot, luminous gas, is at the heart of our solar system. All celestial bodies orbit it due of its enormous gravitational attraction. Nuclear fusion occurs at the Sun’s core, where hydrogen atoms fuse to make helium, releasing massive amounts of energy in the process. This energy flows outward, illuminating and warming the entire solar system.

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If the Sun was not there, the planets would not have existed. The Earth would not have existed and forget about the imagination of life.

The Inner Planets

Now, let us move away from the Sun and look into the objects that are there. In the first category we put the Inner Planets. They are close to the Sun.

As we move away from the Sun, we come across the four inner planets, often known as the terrestrial planets: Mercury, Venus, Earth, and Mars. These planets are tiny, dense, and largely made of rock and metal.

Let us look at brief description of each planets.

1. Mercury

Source NASA Website (https://nasa.gov)

Mercury is the first planet near to the Sun. Sun-scorched Mercury, our solar system’s smallest planet, is just slightly bigger than Earth’s moon. Mercury, like the moon, has no atmosphere to protect it from impacts and is riddled with craters. The sun superheats Mercury during the day, while temperatures falls to hundreds of degrees below freezing at night. Craters may potentially contain ice. It has a barren landscape with impact craters and the Caloris Basin, a huge plain.

  • Distance from the sun: About 36 million miles. Which is a little more than 1/3 as far as the Earth.
  • Length of a Year: About 88 Earth days.
  • Length of Day: About 59 Earth days.
  • Diameter: About 3,000, less than half of Earth’s.
  • Temperatures: – 279 degrees Fahrenheit on the side away from the sun; 801 degrees Fahrenheit on the side facing the sun.

2. Venus

Source NASA Website (https://nasa.gov)

Venus is a dark world of high heat and volcanic activity. Venus’ thick, poisonous atmosphere, which is similar in structure and size to Earth’s, traps heat in a runaway ‘greenhouse effect.’ The charred globe has temperatures high enough to melt lead. Glimpses beneath the clouds reveal volcanoes and damaged mountains. Venus spins slowly in the opposite direction of the other planets.

Venus, known as Earth’s “sister planet” due to its comparable size, is a scorching hot planet enveloped in thick sulfuric acid clouds. It has a thick atmosphere and an excessive greenhouse effect, making it the hottest planet in our solar system.

So, now you know that Mercury is closest planet to the Sun. But, it is not the hottest. The hottest is the Venus.

You can spot Venus in the Morning and the Evening Sky. It rises before all other planet and stars. It is called morning start as well as evening star.

  • Distance from the Sun: Approximately 67 million miles, or roughly 3/4 the distance between the Earth and the Sun.
  • Year: Approximately 225 Earth days.
  • Day: Approximately 243 Earth days.
  • The average diameter is around 7,500 miles, which is nearly as huge as the Earth.
  • The temperature at the surface is 864 degrees Fahrenheit.
  • Carbon dioxide and nitrogen are present in the atmosphere.

3. Earth


Our own home. The Earth is the 3rd planet in the Solar System. Earth is a one-of-a-kind and diversified place filled with life. It has a temperate temperature, plenty of liquid water, and a diverse environment that supports a diverse range of organisms. The only planet known to contain life as we know it is Earth.

  • Distance from the Sun: Earth’s average distance to the Sun is about 93 million miles (150 million kilometers) from the Sun.
  • Year: 365 Days
  • Day: 24 Hours
  • The average diameter is around 7926 miles (12,756 km).

4. Mars


Mars, also referred to as the Red Planet, is the fourth planet from the Sun. The rocks, earth, and sky are all red or pink in color. Throughout history, stargazers have noticed the peculiar red hue. The Romans gave it its name in honor of their god of battle. Similar names have been used by other cultures. The planet was dubbed Her Descher by the ancient Egyptians, which means “the red one.”

Mars’ possibility for past or current life has captivated scientists. It has polar ice caps, a thin atmosphere, and a diversified geography, including Olympus Mons, the biggest volcano in the solar system.

  • Distance from the Sun:  Approximate average distance of 142 million miles (228 million kilometers),
  • Year: Approximately 687 Earth days.
  • Day: 1 Day 0 Hours 37 Minutes on Earth.
  • The average diameter is around 6,794 km (4,212 mi.).
  • Mars’ average temperature is -63° C (-81° F), with a maximum temperature of 20° C (68° F) and a minimum temperature of -140° C (-220° F).
  • Gases in Mars Atmosphere: Carbon dioxide (CO2), Mlecular nitrogen (N2), Argon (Ar), Molecular oxygen (O2), and Carbon monoxide (CO).

The Asteroid Belt

The Asteroid Belt
Asteroid Belt Between Mars and Jupiter.

The asteroid belt, an area occupied by numerous tiny rocky objects known as asteroids, sits between the orbits of Mars and Jupiter. These leftovers of the solar system’s early phases range in size from microscopic pebbles to huge asteroids like Ceres, which is categorized as a dwarf planet.

While the asteroid belt is not as heavily populated as it is typically depicted in science fiction, it is nonetheless a large concentration of celestial bodies. These asteroids circle the Sun in elliptical orbits, occasionally colliding with one another, resulting in the formation of smaller pieces and contributing to the belt’s continual development. Scientists study asteroids to learn about the composition, history, and dynamics of our solar system, and they have the potential to be used in future space exploration and resource extraction missions.

The Outer Planets

Beyond the asteroid belt, the four gas giants, sometimes known as the outer planets, are encountered: Jupiter, Saturn, Uranus, and Neptune. These planets are substantially bigger than Earth’s and are mostly made up of hydrogen and helium.

5. Jupiter


Jupiter, the biggest planet in our solar system, is a massive giant with a tremendous magnetic field. It has distinct cloud bands, including the famous Great Red Spot—a major storm system. Jupiter’s moons, including Io, Europa, Ganymede, and Callisto, are among the most fascinating celestial bodies in our solar system.

  • Named after the Roman gods’ King.
  • Orbit: 484 million miles from the Sun (five times the distance between the Earth and the Sun).
  • Day: around 10 Earth hours.
  • Year: around 12 Earth years.
  • The average diameter is 88,846 miles.
  • Surface gravity is approximately 2.5 times that of Earth.

6. Saturn


Saturn is the 6th Planet in our Solar System. It is a unique planet that has hundreds of gorgeous ringlets. All four gas giant planets have rings comprised of ice and rock, but none are as magnificent or intricate as Saturn’s. Saturn, like the other gas giants, is essentially a gigantic ball of hydrogen and helium.

Saturn is a fascinating planet known for its enthralling ring system. These rings are made up of numerous frozen particles of varying sizes. Saturn contains many moons, including Titan, which has a thick atmosphere and liquid methane and ethane lakes.

  • Distance from the sun: Approximately 900 million miles, or roughly ten times the distance between Earth and the sun.
  • Year: about 29 Earth years.
  • Day: about 10.7 Earth hours.
  • Diameter: about 72,000 miles, or nine times the size of the Earth.
  • 288 degrees Fahrenheit is the effective temperature.
  • Hydrogen and helium are present in the atmosphere.

7. Uranus


Uranus is an ice giant with an unusual characteristic: it rotates on its side. This distinguishes it and causes dramatic seasonal fluctuations. Uranus includes a ring system and a series of intriguing moons, including Miranda, which has unique geological characteristics.

Uranus is the only big planet with an equator that is almost perpendicular to its orbit. A collision with an object the size of Earth might explain the unusual tilt. Uranus, which is about the same size as Neptune, contains more methane in its mostly hydrogen and helium atmosphere than Jupiter or Saturn. Uranus’ blue hue is caused by methane. William Herschel discovered the planet on March 13, 1781.

  • Distance from the Sun: 1.8 billion miles, or around 19 times the Earth’s distance.
  • Year: Approximately 84 Earth years.
  • Day: about 17 Earth hours.
  • Diameter: around 31,500 miles.
  • -357 degrees Fahrenheit is the effective temperature.
  • Hydrogen, helium, and methane are all present in the atmosphere.

8. Neptune


The farthest known planet from the Sun, Neptune is another ice giant. It has a vivid blue coloration due to the presence of methane in its atmosphere. Neptune’s turbulent weather systems include the famous Great Dark Spot, similar to Jupiter’s Great Red Spot. Its moon Triton is notable for its geysers and retrograde orbit.

  • Some of the Moons of Neptune are Triton, Thalassa, Hippocamp, Nereid, Galatea, Despina
  • Distance from the Sun: 2.7 billion miles (4.3 billion kilometers).
  • Year: 165 Earth years
  • Day: 0d 16h 6m on Earth

Dwarf Planets and Beyond

Pluto – A Dwarf Planet
Eris – A dwarf Planet
Makemake – A dwarf Planet

Our solar system is home to numerous dwarf planets, including Pluto, Eris, Haumea, and Makemake, in addition to the eight planets. These objects, which are found in the solar system’s farthest reaches, are fascinating planets with their own distinct properties.

The solar system extends beyond the known planets and dwarf planets into the Kuiper Belt, an area filled by frozen bodies and comets. The Oort Cloud, a large and relatively undiscovered storehouse of comets, sits farther out.

10 Things You Should Know About the Solar System

  1. A star, eight planets, and countless smaller entities such as dwarf planets, asteroids, and comets comprise our solar system.
  2. Our solar system travels at around 515,000 mph (828,000 kph) around the center of the Milky Way galaxy. We’re in one of the 4 spiral arms of the galaxy.
  3. One round around the galactic center takes our solar system about 230 million years.
  4. Galaxies are classified into three types: elliptical, spiral, and irregular. Milky Way is one of the spiral galaxies.
  5. Our solar system is a geographical area in space. It is empty of atmosphere. It does, however, contain several worlds, including Earth, with a variety of atmospheres.
  6. Our solar system’s planets, as well as several asteroids, have more than 200 moons in their orbits.
  7. Rings can be found on all four large planets and at least one asteroid. None are more impressive than Saturn’s magnificent rings.
  8. More than 300 robotic spacecraft have explored places beyond Earth’s orbit, including the Moon, which was visited by 24 American astronauts.
  9. Our solar system is the only one known to be capable of supporting life. We only know of life on Earth so far, but we’re seeking for more anywhere we can.
  10. The only spacecraft to exit our solar system are NASA’s Voyager 1 and Voyager 2. Three other spacecraft will eventually reach interstellar space: Pioneer 10, Pioneer 11, and New Horizons.
Our Solar System Location in Milky Way
Picture Showing Our Solar System Location in Milky Way Galaxy (Source: NASA)


Our solar system is a remarkable witness to the universe’s majesty and intricacy. It provides a plethora of wonders for exploration and discovery, from the burning heat of the Sun to the cold limits of the outer planets and beyond. We may better appreciate the beauty and complexity of our cosmic neighborhood by delving into the precise features of each celestial body, creating a greater awareness of the world in which we exist.

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