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 …

2026年1月26日 · 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 …

2 天之前 · 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 …

1 天前 · Bleached, clay-rich rocks spotted by NASA's Perseverance rover offer fresh evidence that Mars may have had rain and a warmer, wetter climate billions of years ago.

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

44 分钟之前 · The current image of Mars as an arid and hostile desert contrasts sharply with the history revealed by its surface. Channels, minerals altered by water, and other geological traces indicate that ...

2025年5月20日 · A guide to the Red Planet, Mars, including facts about its geology, a history of Mars missions and images captured by astrophotographers.

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.

2026年1月19日 · 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 and weather.

The strongest hints yet that Mars once hosted living microbes are no longer theoretical models or ambiguous chemistry. They are etched into a single, oddly speckled rock in an ancient riverbed ...