How much do we know about planet Mars?
People have talked about Mars for hundreds of years, but it wasn’t until recently that we knew for sure that it exists.
Over the past few decades, people have become much more interested in exploring Mars. Mars is now one of the most popular topics among scientists, engineers, and the general public. This renewed interest is due in part to the many successes of Mars exploration missions, including the Mars Pathfinder mission in 1997 and the Mars Exploration Rovers in 2004.
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, being larger than only Mercury. In English, Mars carries the name of the Roman god of war and is often referred to as the “Red Planet” because the red iron oxide on its surface gives it a reddish appearance.
Check this out – What is the name of the colour our eyes see in the absence of light?
Mars is a terrestrial planet with a thin atmosphere, having surface features reminiscent of the impact craters of the Moon and the valleys, deserts and polar ice caps. The days and seasons are comparable to those of Earth because the rotational period and the Martian poles’ tilt are similar. Mars is the site of Olympus Mons, the largest volcano and second-highest known mountain in the Solar System, and of Valles Marineris, one of the largest canyons.
We now know more about Mars than ever before, thanks to technology that allows us to create detailed surface maps and produce 3D images of the planet. Much of what we know about Mars is thanks to NASA’s exploratory missions in the 1970s, which allowed for unprecedented discoveries in planetary science. The increased interest in Mars exploration is also due to the many potential benefits of colonizing Mars. Mars is ideal for human colonization because it is similar to Earth in many ways. Mars has a similar diameter and gravity to Earth, and it also has a thin atmosphere.
What is it like to walk on Mars? How is the water on Mars different from Earth’s water? What are the seasons on Mars? Is there life on Mars? These are just a few of the many questions people want to answer about planet Mars. However, many of these questions still need more research and data before we can answer them. We know little to nothing about what it’s like to walk on Mars. We can’t even be sure that there is liquid water on the planet’s surface. In fact, it’s possible that the planet has a cold and dry climate.
Mars Exploration in the Contemporary Era
Nasa successfully landed its Perseverance Rover in the Jezero Crater earlier this month, which has been identified as an ancient lakebed that formed billions of years ago.
Several countries, including India and the United States, are collaborating on a Mars expedition to investigate the Red Planet’s habitability and look for signs of existence.

The National Aeronautics and Space Administration (NASA) successfully landed its Perseverance rover in the Jezero Crater earlier this month, which has been identified as an ancient lakebed that emerged billions of years ago.
The crater was filled with water to create a deep lake, which dried up as the planet’s atmosphere changed, according to Nasa’s Mars exploration program. The Perseverance rover will investigate the ancient lake bed’s rocks and return samples in upcoming flights. Humans want to know if life once flourished on Mars, despite being too cold and dry for life to survive there today. How does Mars compare with Earth?
The Earth’s atmosphere is mainly nitrogen and oxygen, while the Martian atmosphere is mostly carbon dioxide. Earth has only one moon, a celestial satellite that revolves around the sun, while Mars has two small moons, Phobos and Deimos.
Basic Difference between these planets
Parameters | Earth | Mars |
Diameter | 93 million miles | 142 million miles |
Length of Day | 23 hours 56 minutes | 24 hours 37 minutes |
Average speed in orbiting Sun | 93 million miles | 142 million miles |
Length of Year | 365.25 days | 687 Earth days |
Tilt of Axis | 23.5 degrees | 25 degrees |
Scientists know a lot about the atmosphere of Mars. They know that the atmosphere is mostly carbon dioxide, and they know that it is very thin. It is estimated to be around 1/100th the pressure of Earth’s atmosphere, and scientists do not think there has been any liquid water on Mars for billions of years.
There is evidence that Mars once had a wide, warm ocean of water. Changes in the planet’s orbit could have caused this ocean.
Also Read: Is Money Spent on Space Exploration A Waste?
Some Key Facts about Planet Mars
The Red Planet and Its Composition
Mars, also referred to as the Red Planet, is the fourth planet from the Sun and the second smallest planet in the solar system after Mercury. Its characteristic reddish color results from iron oxide, or rust, on its surface. Mars has a thin atmosphere, mostly carbon dioxide, and cannot sustain human life unless through technology. Notwithstanding this, it has been one of the strongest candidates for exploration because it shares similarities with Earth, such as its rotation period and seasonal variations.
Unique Geological Features
The most fascinating fact about Mars is the geological activity on the planet. It features the highest volcano in the solar system, Olympus Mons, measuring approximately 22 kilometers (13.6 miles) high, close to triple the height of Mount Everest. Mars also boasts Valles Marineris, an extensive network of canyons that are over 4,000 kilometers (2,500 miles) in length—the biggest canyon system in the solar system. Evidence indicates that Mars had liquid water in the past, with old riverbeds and polar ice caps suggesting an originally habitable environment.
Extreme Weather Conditions
Mars has rough and volatile weather. The temperatures on the planet can vary between 20°C (68°F) during the day close to the equator and -125°C (-195°F) at night in the polar regions. The atmosphere is thin and doesn’t provide much shelter from sun radiation and contributes to regular dust storms, which some of them can last weeks and cover the whole planet. These storms are the most powerful in the solar system, reshaping the terrain and impacting robotic missions.
Exploration and the Search for Life
Mars exploration has been a major priority for space agencies globally. Many rovers, landers, and orbiters have been dispatched to explore its surface, atmosphere, and habitability. NASA’s Perseverance rover, which was launched in 2020, is currently on the lookout for evidence of past microbial life, and future missions, including possible human exploration, are in the works. With space technology advancements, Mars is still a prime target in the pursuit of humanity to learn about our solar system and the potential for life outside Earth.
Conclusion
In spite of decades of study and repeated missions, Mars remains shrouded in mystery. Scientists have accumulated vast information regarding its surface, climate, and geological past, establishing the fact that the planet had liquid water and probably conditions hospitable to life in the past. Nonetheless, several questions remain to be answered, for example, if microbial life ever existed or whether Mars would be fit for human colonization in the future. With continued rovers’ explorations and future human missions, our knowledge of Mars only grows, drawing us closer to the discovery of the planet’s secrets.