Mars is the second smallest planet in the Solar System after Mercury.
The first person who saw Mars via a telescope was Italian astronomer Galileo Galilei in 1610.
Mars has the largest dust storms in the Solar System, reaching speeds of over 100 miles per hours (160 kilometers per hour).
Mars is named after the Roman god of war due to its red color looking like blood.
The first map of Mars was drawn by Johann Heinrich Mädler in 1840 after ten years of observations.
In Greek, the planet Mars was known as Ares.
The human circadian rhythm is better suited to life on Mars than on Earth.
Over 100,000 people have applied for the Mars One project which will be first one-way trip to colonize Mars.
In 1726 Jonathan Swift wrote in his book “Gulliver’s Travels” about the two moons of Mars 151 years before they were even discovered.
Due to its extreme dryness, the Atacama Desert in Chile is one of the best environments on Earth to recreate conditions on Mars. Even NASA Mars rovers are tested there.
In 2014 India launched a spacecraft to Mars at a total cost of only 75 million US-Dollar. This was even cheaper than the production of the movie “Gravity”.
Even though Mars has only 15 percent of the Earth’s volume Mars and Earth have approximately the same land surface area due to the fact that the largest part of Earth’s surface is covered with water.
Mars is the only other planet besides Earth that has polar ice caps. The same applies also to Pluto or other moons in our solar system however these are no planets.
A Martian day is 24 hours 39 minutes and 35 seconds.
Mars is red as his surface contains lots of iron oxide which is also the same compound that gives blood and rust their red tone.
Mars is the only known planet which is inhabited solely by robots.
Geographical features on Mars are named in a special way. Craters that are smaller than 30 miles (50 kilometers) are named for towns and villages of the world with a populations of less than 100,000 people whereas craters larger than 30 miles are named for deceased scientists and writers who have contributed to the study of Mars. Large valleys are named for the word “star” or “Mars” in various languages and small valleys are named for rivers.
The gravity on Mars is only 0.375 percent of Earth’s gravity. This means that if you weigh 200 pounds (90 kilogram) on Earth you would weigh only 75 pounds (34 kilogram) on Mars.
Three men from Yemen accused NASA for “settling” on Mars. According to the men, their ancestors gave it to them 3,000 years ago.
It has been known since 1971 that the Olympus Mons volcano on Mars is the largest known volcano in our solar system. By comparison, it was not until 2013 that the largest volcano on Earth was discovered: the Tamu Massif in the Pacific.
Sunsets on Mars appear in a blue tone.
It would take more than six of Mars to fill the volume of Earth.
Mars has its own flag which was designed by NASA engineer Thomas O. Paine in 1984.
Mars has no magnetic field.
Around 4 billion years ago Mars had an oxygen-rich atmosphere.
In 1976 the Viking 1 spacecraft was the first spacecraft to land on Mars being able to send data to Earth.
On 13 February 2019, NASA officially lost contact with its Mars rover “Opportunity”. Originally, the rover was planned to be used for only 90 days, but instead it would continue to send data to Earth for more than 15 years. Contact was ultimately lost when the rover got caught in a sandstorm.
On its first anniversary NASA’s Curiosity Rover sang “Happy Birthday” to itself on Mars.
The length of a year on Mars is 687 Earth days.
NASA has special wristwatches produced for some of its employees that show the time of day on Mars.
On Mars the Sun appears about half the size as it does on Earth.
Mars has about one tenth of the mass of Earth.
NASA calculated that sending a letter to Mars would cost approximately 18,000 US-Dollar.