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You are here: BBC > Science & Nature > TV & Radio Follow-up > Programmes > Space Odyssey
Space Odyssey: Voyage to the Planets

Programme 2
First shown November 2004

Jupiter0 Just over 200 days of travel from the Sun, Pegasus reaches the largest planet of the Solar System, Jupiter.

Danger lies in a menace lurking at Jupiter's core - a churning mass of liquid metallic hydrogen that inflates a magnetic bubble around the planet, producing levels of radiation 500 times the dose that would kill a human.

Take a tour of Jupiter

To repel these lethal rays, Pegasus generates its own magnetic field.

Mission geologist Zoe is to land on Io, one of Jupiter's moons. As the most volcanically active world in the Solar System, it's a geologist's heaven.

Find out more about Hermes, the Io lander

This scientific bounty does, however, come at a price. Perilously close to the most lethal Jovian radiation belts, Zoe risks severe exposure but she's trained hard for this day and nothing is going to stop her exploring these exotic lava flows.

Her exhilaration at being on the surface quickly turns to frustration when her spacesuit malfunctions. Even the most cutting-edge technology and millions of pounds of development cannot guarantee safety in these other worlds.

Zoe is forced to cut the mission short. No samples are returned and, to her despair, half the expedition is a failure.

Rings of Saturn0

The ringed world of Saturn is almost a year of interplanetary travel away. By the time they reach it, medic John is seriously sick and deteriorating rapidly. He seems to have been exposed to a lethal level of radiation as Pegasus passed the Sun.

How does radiation affect your body?

Amongst a mesmerising trillion shards of ice and rocks tumbling in endless rings around this gas giant, crew member Nina Sulman conducts a spacewalk.

She collects a fragment for testing, hoping it will help establish the rings' origins and age.

By the time she returns, John has passed away, no longer able to fight the radiation in his body. His death is a terrible blow to the astronauts.

Torn between returning to Earth or venturing on to Pluto, at the edge of the Solar System, the psychological stress takes its toll and the crew take the unprecedented step of cutting contact with Mission Control whilst they make up their minds.

Eventually, the astronauts re-establish communication having decided to continue on their Plutonian path.

Almost two years elapse before Pegasus draws close to the tiny frozen world of Pluto, its massive moon hanging close by.

Tom and Yvan make the descent and spend 10 days constructing a telescope which will remain on the surface after they leave, scouring the Galaxy for other Earth-like planets.

Comet0

Heading for home, there is one final mission: to land on a newly observed comet, Messier, to sample pristine material from the birth of the Solar System in a search for the organic building blocks of life.

Did comets bring life to Earth?

As the crew rests inside their lander, the comet suddenly starts breaking up without warning, shedding material into space and blocking a safe return to orbit.

Zoe and Nina make a dramatic emergency launch to bring them within sight of Pegasus, but comet debris has breached its hull, injuring Yvan.

Tom is busy fighting a fire on board. The safety of Earth suddenly seems a long way off...

Play the Space Doctor game

Back to Space Odyssey Homepage

 TV Programmes - BBC One

First shown November 2004

Programme One

Programme Two

Space Odyssey homepage

 Elsewhere on Space  Odyssey

PLAY: Space Doctor
Could you keep your crew healthy on a voyage to Mars?

Health in Space
Think a trip to space would be glamorous? Find out what it does to the body.

Pegasus and craft
Information on the Pegasus spaceship and its landers.

Crew Profiles
Get to know the crew of Pegasus and their support team.

VOTE: Mission to Mars
Your views on sending a manned mission to Mars.

 Elsewhere on bbc.co.uk

Science News
All the latest Science and Technology news from the BBC.

On this day
Multimedia guides to landmarks in the history of space exploration

 Elsewhere on the web

Galileo Project
Take a look back at the Galileo probe's mission to Jupiter

Can we catch a comet?
An article from Space.com

Do comets really break apart?
A NASA article explains why this happens more often than scientists first thought

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