Mars formed along with the other planets approximately 4.5 billion years ago. During the martian Noachian period (4.5 to 3.5 billion years ago), its surface was marked by meteor impacts, …

Jul 15, 2025 · Mars – the fourth planet from the Sun – is a dusty, cold, desert world with a very thin atmosphere. This dynamic planet has seasons, polar ice caps, extinct volcanoes, canyons …

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. …

18 hours ago · Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere, which kept it warm enough to support flowing water …

Dec 18, 2024 · Mars is the red-colored fourth planet from the Sun. While not Earth’s twin in size or composition (a title often attributed to Venus), it is the most habitable of the other planets in …

Mars, the red planet Highlights 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 …

NASA’s real-time portal for Mars exploration, featuring the latest news, images, and discoveries from the Red Planet.

2 days ago · Mars is about to receive a double dose of attention. This weekend, a pair of identical NASA satellites will launch together to help reveal how the Red Planet lost its thick …

1 day ago · NASA’s Perseverance rover has uncovered powerful new evidence that Mars’ Jezero Crater once hosted multiple rounds of flowing water, each creating conditions that could have …

Sep 30, 2025 · The fourth planet from the Sun, Mars is one of Earth's two closest planetary neighbors (Venus is the other). Mars is one of the easiest planets to spot in the night sky — it …