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Learn about Mars, the fourth planet from the Sun, and its history, climate, moons, and missions. See images, videos, and news from NASA's robotic explorers and human spaceflight plans.
- Send Your Name to Mars
The Sun will be at peak activity this year, providing a rare...
- Mars Facts
Mars is one of the most explored bodies in our solar system,...
- Pop Culture Mars
Mars is no place for the faint-hearted. It’s dry, rocky, and...
- News
NASA has awarded nearly $1.5 million to academic,...
- Curiosity Views Mud Cracks in The Clay-Sulfate Transition Region
The discovery marks the first evidence of these wet-dry...
- Happy Valentine's Day
Earth Information Center. For more than 50 years, NASA...
- Nasa, Partners Study Ancient Life in Australia to Inform Mars Search
In June 2023, NASA’s Mars Exploration Program leaders joined...
- Send Your Name to Mars
News about Mars, Topeka, Halloween Headquarters
News about George Conway, Mar-a-Lago, FBI
Also in the news
Mars is the fourth planet from the Sun. The surface of Mars is orange-red because it is covered in iron(III) oxide dust, giving it the nickname "the Red Planet". Mars is among the brightest objects in Earth's sky, and its high-contrast albedo features have made it a common subject for telescope viewing.
- 24.07 km/s, (86700 km/h; 53800 mph)
- 1.025957 d, 24ʰ 37ᵐ 22.7ˢ
- 241 m/s, (870 km/h; 540 mph)
2 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.
- How far is Mars from Earth?Mars is less than 56 million km (35 million miles) from Earth at its closest approach, but it recedes to almost 400 million km (250 million miles)...
- What is the size of Mars?Mars is the second smallest planet in the solar system, only larger than Mercury and slightly more than half the size of Earth. It has an equatoria...
- What do Mars and Earth have in common?Mars is similar to Earth in many ways. Like Earth, it has clouds, winds, a roughly 24-hour day, seasonal weather patterns, polar ice caps, volcanoe...
- What is the temperature on Mars?The characteristic temperature on Mars in the lower atmosphere is about 200 kelvins (K; −100 °F, −70 °C), which is generally colder than the averag...
- When did Viking 1 and Viking 2 land on Mars?The Viking landers are two robotic U.S. spacecraft launched by the National Aeronautics and Space Administration (NASA) for the study of the planet...
- Should humans colonize space on Mars?Space colonization, on Mars or elsewhere, is widely debated. Some argue humans have a moral duty to save our species from extinction, and space col...
Learn about Mars, the fourth planet from the Sun, and its history, climate, and moons. Explore the robotic missions and human plans to study and visit the Red Planet.
Learn about Mars, the fourth planet from the Sun, and its features, history, and potential for life. Find out how Mars compares to Earth in size, distance, orbit, seasons, moons, and more.
Learn about the red planet's history, climate, geology, and potential for life in this comprehensive article. Discover how Mars compares to Earth and why it is a fascinating world to explore.
