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Famous spacecraft · one engineering question · answered

Spacecraft, taken apart.

The most famous machines ever flown into space — and the one engineering question each of them still raises. Real 3D, real agency film, the original documents.

16–20 minute films · in English and German

A rocket at stage separation: the upper stage lights its engine, the spent stage falls away, and the ring between them is the interstageINTERSTAGEUPPER STAGE · IGNITIONSPENT STAGEFALLING AWAY

What the name means

Interstage /ˈɪn.tə.steɪdʒ/

The ring that joins two rocket stages. It holds them together through the hardest minutes of the climb — then it has to let go, cleanly, at exactly the right second. That moment, where the engineering has to work, is where every one of our films takes place.

The formula / 01–04

Every film is built the same way.

No space news, no “NASA confirmed”. One machine, one question, one day that really happened — answered from the paperwork.

01

A famous spacecraft

A machine you already know — the Saturn V, the Space Shuttle, the Apollo lunar module, Webb — and the moment it was pushed to its limit.

02

One narrow question

Not “the history of”. One engineering question you can answer in a sentence — and we do, before the credits.

03

A real, dated day

Every film opens on a day that happened: the date, the altitude, the crew or the control room, in the present tense.

04

The original documents

Mission reports, inquiry boards, design reviews and the crews' own accounts. Quoted — never invented.

The series / four kinds of film

One channel, four ways in.

Most films are investigations. Every few weeks, one of the other three — chosen by the story, not the calendar.

S2

The investigation

One spacecraft, one bad day, one question: the answer up front — then proven part by part.

EXAMPLEWhy NASA's Ares I rocket only flew once

S3

The hunt

Where are they now? The hardware nobody asks about — in museums, on the Moon, still in orbit.

EXAMPLEWhere are all the Apollo lunar modules now?

S4

Head-to-head

Two machines built for the same job — and why they came out so different.

EXAMPLEWhy Curiosity and Perseverance look almost identical — but aren't

S1

The chronicle

One machine's whole life, start to finish. Fewer words — the 3D and the film carry it.

EXAMPLEJames Webb: the telescope that almost never launched

Film 01 · in production

We start with a rocket that flew once.

The Ares I-X rocket lit by xenon lights on Launch Complex 39B at nightfall, October 2009 Coming first PHOTO: NASA

Ares I-X · 28 October 2009

Why NASA's Ares I Rocket Only Flew Once

October 28, 2009. Ares I-X lifts off from Launch Complex 39B at the Kennedy Space Center — the first rocket other than the Space Shuttle to fly from that pad since the Apollo era. It is the only flight the Ares I will ever make.

Was it the rocket, the money or the plan around it? From NASA's own reviews and the independent committee's report — the answer in one sentence, then the evidence.

1 FLIGHT
28 Oct 2009 · suborbital test
the only one the Ares I ever made
99.7 M
327 ft
Ares I-X on the pad, from booster to tip
4 + 1
live segments + one dummy
the rocket as planned had five live segments
2010
February
the White House budget proposes ending the programme

How it's made / four layers

The part that decided it, on screen.

Cinema-grade 3D where no camera could go, real film where one already went, and the document itself where the numbers live.

3D render of the Space Shuttle orbiter above the curve of the Earth

Real 3D in orbit

NASA's own models of the real spacecraft, flown over the Earth's limb, at the Moon or on their own plume — and opened up to show the one part that decided the day.

Line drawing of the Ares I rocket with its flared interstage marked in orange

The drawing board

Orbits, engine cycles and heat flows, drawn line by line — the way an engineer would sketch them.

An Atlas rocket carrying the Agena target vehicle lifts off from Cape Kennedy on 16 March 1966, shortly before Gemini 8

Real agency film

About a third of every film is real footage and photographs from NASA, ESA and other agencies — most of it public domain. The day, as it was.

Data card: Saturn V height 110.6 metres, 363 feet; F-1 engine thrust 6,770 kilonewtons, 1,522,000 pounds-force

Every number twice

Metres and feet, kilonewtons and pounds of thrust, km/h and mph — metric first, both on screen, every time.

The Apollo 9 lunar module Spider in Earth orbit, landing legs deployed, 1969
APOLLO 9 LUNAR MODULE “SPIDER” · 1969 · NASA
John Glenn aboard Friendship 7 during the first American orbital flight, 1962
FRIENDSHIP 7 · 1962 · NASA
An overhead crane lifts the Saturn V first stage for Apollo 11 inside the Vehicle Assembly Building, 1969
SATURN V FIRST STAGE · 1969 · NASA
Low-angle self-portrait of the Curiosity rover on Mount Sharp, Mars, 2015
CURIOSITY · 2015 · NASA/JPL-CALTECH/MSSS
The final primary mirror segment installed on the James Webb Space Telescope, 2016
WEBB'S PRIMARY MIRROR · NASA

The rules / every film

No hype. No “NASA confirmed”.

The real engineering is dramatic enough. Our job is to get it right.

  • 01

    Every description lists its sources — with publication details.

  • 02

    We say what is not known, instead of guessing.

  • 03

    Illustration is marked as illustration. AI reconstructions are made from real photographs and labelled on screen.

  • 04

    Every 3D model and music track is credited by name.

  • 05

    Lost crews are named, and their stories told with respect.

Coming next / in production

Next on the bench.

Which spacecraft should we take apart next? Tell us in the comments.

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INTERSTAGE

INTERSTAGE

New films regularly, in English and German. Subscribe — and see how they really work.