About this expedition
What is it like to stand on Mars?
Walk an imagined Martian plain in first person, right in your browser. You move and jump in Mars gravity — 3.71 m/s², about 38% of Earth’s — past layered rock, wind-shaped dunes and dust-capped boulders under a butterscotch sky, with a real NASA rover model parked nearby.
Mars is a cold desert world. Its air is about 95% carbon dioxide and so thin that surface pressure is less than 1% of Earth’s, yet it still lifts fine dust that tints the daytime sky and turns sunsets blue. Its two small moons, Phobos and Deimos, cross the sky — click either one to learn more.
Quick facts
- Surface gravity
- 3.71 m/s² — about 38% of Earth’s
- Length of a day (sol)
- About 24 hours 40 minutes
- Average temperature
- About −60 °C
- Atmosphere
- About 95% CO₂, under 1% of Earth’s surface pressure
- Distance from the Sun
- About 228 million km (1.52 AU)
- Moons
- Phobos and Deimos
Five discoveries to find
- Layers of deep time — a banded mesa like the sedimentary rock that rovers study.
- Basalt under the dust — a volcanic rock you can rotate in the specimen viewer.
- The wind still works here — dunes shaped by thin but persistent Martian wind.
- A rover at rest — a real NASA rover model, a tribute to the five NASA rovers sent since 1997.
- A softened crater — how wind and dust wear down Martian craters, unlike the Moon’s.
How to explore
Press Step onto Mars, then walk with W A S D or the arrow keys, hold Shift to move faster, press Space to jump and drag to look around. On phones and tablets a touch pad appears. Press G to compare the local gravity with Earth’s, P for photo mode, and E to record a discovery in your journal — progress is saved on your own device.
Science and artistic reconstruction
The dusty sky, blue sunset, layered rock and dunes are inspired by images from NASA rovers such as Curiosity and Perseverance. The terrain and observation points are procedurally generated art, not survey data from a real landing site.
Keep exploring
关于本次探索
站在火星上是什么感觉？
在浏览器中以第一人称走过一片虚构的火星平原。你将在火星重力下行走和跳跃——3.71 m/s²，约为地球的 38%——经过层状岩石、风成沙丘和戴着尘帽的巨石，头顶是奶油色的天空，附近停放着一辆真实的 NASA 火星车模型。
火星是一个寒冷的沙漠星球。大气约 95% 是二氧化碳，地表气压不到地球的 1%，但仍能扬起细尘，把白天的天空染成淡黄色，让日落呈现蓝色。它的两颗小卫星火卫一和火卫二会划过天空——点击任何一颗了解更多。
快速数据
- 表面重力
- 3.71 m/s²，约为地球的 38%
- 一个火星日（sol）
- 约 24 小时 40 分钟
- 平均温度
- 约 −60 °C
- 大气
- 约 95% 二氧化碳，地表气压不到地球的 1%
- 与太阳的距离
- 约 2.28 亿公里（1.52 AU）
- 卫星
- 火卫一与火卫二
五个发现
- 沉积的时光 — 像沉积岩层一样分层的平顶山。
- 尘埃下的玄武岩 — 可在标本查看器中旋转的岩石。
- 风仍在工作 — 稀薄但持续的火星风塑造出的沙丘。
- 歇脚的火星车 — 自 1997 年以来 NASA 派出的五辆火星车之一的模型。
- 被磨平的环形山 — 风与尘埃如何逐渐磨平火星陨击坑，与月球不同。
如何探索
点击“踏上火星”，然后用 W A S D 或方向键行走，按住 Shift 加速，按空格键跳跃，拖动鼠标环顾四周。手机和平板上会出现虚拟方向键。按 G 对比重力，按 P 进入拍照模式，按 E 记录发现。
科学与艺术重建
奶油色天空、蓝色日落、层状岩石和沙丘受好奇号、毅力号等 NASA 火星车影像启发。地形与观察点由程序生成，属于艺术创作，并非某个真实着陆点的测量数据。