Mars is the fourth planet from the Sun. It is also known as "the Red Planet", because of its orange-red appearance. [22] [23] Mars is a desert-like rocky planet with a tenuous carbon dioxide (CO 2) atmosphere.

Apr 22, 2025 · Mars is one of the most explored bodies in our solar system, and it's the only planet where we've sent rovers to roam the alien landscape. NASA missions have found lots of evidence that Mars was much wetter and warmer, with a thicker atmosphere, billions of years ago.

5 days ago · Mars is the fourth planet in the solar system in order of distance from the Sun and the seventh in size and mass. It is a periodically conspicuous reddish object in the night sky. There are intriguing clues that billions of years ago Mars was even more Earth-like than today.

Jan 29, 2025 · For over 60 years, NASA has been in pursuit of answering science's biggest questions – was, or is, Mars a habitable world? The key to understanding the past, present or future potential for life on Mars can be found in NASA’s four …

6 days ago · Mars is sometimes called the Red Planet. It's red because of rusty iron in the ground. Like Earth, Mars has seasons, polar ice caps, volcanoes, canyons, and weather. It has a very thin atmosphere made mostly of carbon dioxide, nitrogen, and argon. People would not be able to breathe the air on Mars. Explore Mars!

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its...

Jan 20, 2019 · The first goal is to determine whether life ever arose on Mars, the second goal is to characterize the climate of Mars, third is to characterize the geology of Mars, fourth and most importantly to prepare for human exploration of Mars.

Mars Fact Sheet; Frequently Asked Questions; Missions to Mars Current and Past Missions. Mars 2020 - NASA rover to Mars (2020) Tianwen 1 - Chinese Mars rover and orbiter (2020) Hope - United Arab Emirates Mars orbiter (2020) InSight - NASA lander to Mars (2018) ExoMars 2016 - ESA Orbiter and Lander to Mars (2016) MAVEN - NASA Mars Orbiter (2013)

Jul 11, 2022 · Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a cold, desert world within our solar system. It has a very thin...

Scientists are uncovering how Mars transformed into the cold, dry desert world it is today. We explore Mars to understand the planet's history and look for evidence of past or even present life. Is there life on Mars? This question has intrigued humans for centuries.