Blue sunsets, whirling dust devils, giant volcanoes, tiny moons, and marsquakes—there’s a lot to discover on Mars!

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.

Landing humans on Mars could teach us whether life ever existed beyond Earth, how planets change over time, and how humans can live on other worlds. By studying Mars up close, astronauts could answer ...

This week, Mars will shine brighter than at any time since December 2022 as it reaches a point astronomers call "opposition." That means skywatchers will have the best views of the Red Planet — both ...

The reason why Mars is called the Red Planet is because of its reddish appearance when seen from space and Earth. Mars is red due to iron oxide commonly known as rust. The reddish appearance created ...

This story was updated to correct inaccurate position of Mars and Earth. Mars will appear its biggest and brightest this month when it reaches its closest position to Earth while simultaneously being ...

The north pole of Mars is slowly sinking under the weight of an ice cap that only formed within the past few million years. And, in the process, it’s telling us something about what the planet’s ...

Scientists have found that ancient Martian lakes could have survived for decades despite freezing air temperatures. Using a newly adapted climate model, researchers showed that thin, seasonal ice ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. With its iconic ...

Mars has captured human imagination for centuries, but the Red Planet holds far more secrets than NASA typically shares with the public. While the space agency presents Mars as a fascinating but ...

Sotheby's in New York City auctioned off a giant chunk of Mars found in Africa. It sold for $4.3 million. "Our work is a new piece of evidence that suggests that Mars was once a much more complex and ...