Nov 20, 2024 · Mars has a thin atmosphere made up mostly of carbon dioxide, nitrogen, and argon gases. To our eyes, the sky would be hazy and red because of suspended dust instead of the familiar blue tint we see on Earth. Mars’ sparse atmosphere doesn’t offer much protection from impacts by such objects as meteorites, asteroids, and comets.

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". [22] [23] 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.

Jan 23, 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 that Mars was much wetter and warmer, with a thicker atmosphere, billions of years ago.

3 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.

Dec 12, 2024 · Mars is the only planet we know of inhabited entirely by robots. Recorded observations of Mars date back more than 4,000 years. Led by our curiosity of the cosmos, NASA has sent a carefully selected international fleet of robotic orbiters, landers and rovers to keep a continuous flow of scientific information and discovery from Mars.

Mars is one of the easiest planets to spot in the night sky – it looks like a bright red point of light. Despite being inhospitable to humans, robotic explorers – like NASA's new Perseverance rover – are serving as pathfinders to eventually get humans to the surface of the Red Planet.

5 days ago · NASA’s Mars Perseverance rover seeks signs of ancient life and collects samples of rock and regolith for possible Earth return. Where is Perseverance? The Mars 2020 Perseverance Rover searches for signs of ancient microbial life, to advance NASA's quest to explore the past habitability of Mars.

Mars is the fourth planet from the Sun – a dusty, cold, desert world with a very thin atmosphere. Mars is also a dynamic planet with seasons, polar ice caps, canyons, extinct volcanoes, and evidence that it was even more active in the past.

Nov 20, 2023 · Mars is the fourth planet from the Sun and orbits the Sun at an average distance of approximately 141 million miles (225 million km). It rotates on its axis, completing one revolution every 24.6 hours.

May 17, 2023 · Solar System and Planets, Mars. Learn about Mars. Why is it red? How big is it? How long is its day? And more. All About Mars. Read about the Red Planet.