Tranquility Base in 3D

The Moon · 20 July 1969

Mare Tranquillitatis, the Moon

Tranquility Base is where the first crewed landing on the Moon touched down on 20 July 1969. The lander's descent stage still stands where it was left; you can walk to Little West crater, the farthest either astronaut went, under a black sky with Earth hanging about 60 degrees up. With no air, the sky stays black in full sunlight.

Where: Mare Tranquillitatis, the Moon
Landing: 20 July 1969
Time outside: About two and a half hours
Farthest walk: About 60 m, to Little West crater

Walk Tranquility Base in 3D

A real-time 3D model, shaped to published NASA and USGS elevation measurements. Loads 1.4 MB when you start.

Works in VR on Meta Quest and other WebXR headsets: open this page in the headset's browser, start the 3D walk, then choose View in VR.

Tranquility Base rendered in real-time 3D

Walk it yourself. Works on this phone.

Part of the Beyond Earth pack: a one-time unlock in this browser.

Shaped to NASA and USGS elevation measurements · a 3D reconstruction, not a photograph

Hear the guide

The narrator from the app reads each tour stop. Transcripts below.

The Eagle's descent stage
Known0:18

The lower half of the lunar module stayed behind on 21 July 1969 when the ascent stage lifted off. This is a simplified model built to NASA's published dimensions, not a scan.
Little West crater
Known0:14

Armstrong jogged about 60 m east to photograph this 33 m crater: the farthest either astronaut went from the lander during two and a half hours outside.
Earth, high in a black sky
Known0:15

With no air to scatter light the sky is black even in full sunlight, and the stars are hidden by the glare. Earth hangs about 60 degrees up and never moves across this sky.

How we built it

A procedural model shaped to published NASA and USGS elevation measurements (LROC). The descent stage is a simplified block model built to published dimensions, not a scan. It is a reconstruction, not a photograph.

Open Tranquility Base in Farstep

The full site on your phone: a narrated guided tour, passport stamps, offline, and smoother graphics than a browser can give.

Narrated guided tour, stop by stop, in nine languages
Passport stamps for every hotspot and finished tour
Works offline once installed
Stonehenge free; other sites are one-time packs. No ads, no subscription.

Open in Farstep

Get it onGoogle Play Download on theApp Store

On iPhone the button opens the App Store.

Tranquility Base: questions and answers

Where did Apollo 11 land?

At Tranquility Base, in Mare Tranquillitatis on the near side of the Moon, on 20 July 1969.

How far did the Apollo 11 astronauts walk?

About 60 m from the lander at most, to Little West crater. They spent about two and a half hours outside.

Can I walk around Tranquility Base in 3D?

Yes, in your browser. Everything on this page is free to read. Walking Tranquility Base in 3D is part of the Beyond Earth pack: a one-time purchase with no subscription, and signing in with the same account unlocks it in the Farstep app too.

Can I walk Tranquility Base in VR?

Yes, on a Meta Quest or another WebXR headset: open this page in the headset's browser, start the 3D walk, then choose View in VR. The left stick walks, the right stick turns and the trigger opens the fact cards.