Mars - NASA Science
Nov 24, 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 explore the alien landscape. NASA missions have found lots of evidence …
Mars - Wikipedia
In 1971 Mariner 9 entered orbit around Mars, being the first spacecraft to orbit any body other than the Moon, Sun or Earth; following in the same year were the first uncontrolled impact (Mars 2) and first …
Mars | Facts, Surface, Moons, Temperature, & Atmosphere | Britannica
4 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 …
Mars Facts | What Does Mars Look Like | All About Mars - Star Walk
Oct 27, 2025 · Mars is the fourth planet from the Sun and the seventh largest planet in the Solar System. With evidence suggesting that it once had flowing water, Mars holds many secrets waiting to be …
Why we explore Mars—and what decades of missions have revealed
Mars is the fourth rock from the sun, just after Earth. It is just a smidge more than half of Earth’s size, with gravity only 38 percent that of Earth’s. It takes longer than Earth to complete a...
Mars: Everything you need to know about the Red Planet
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.
NASA Mars Exploration
NASA’s real-time portal for Mars exploration, featuring the latest news, images, and discoveries from the Red Planet.
Mars Facts - Fourth Planet From the Sun - Science Notes and Projects
Dec 18, 2024 · Discover interesting Mars facts. Learn about the size, moons, surface features, and seasons of the fourth planet from the Sun.
Mars - WorldAtlas
May 16, 2022 · Orbiting the sun at a distance of 141.6 million miles (210-million kilometres), Mars is the fourth planet from the sun. With a diameter of 4,228 miles (6,804 kilometres), Mars is the second …
Mars, the red planet - The Planetary Society
Mars once had liquid water on its surface and could have supported life. Scientists are uncovering how Mars transformed into the cold, dry desert world it is today.