Space: Flying Visits | A roller-coaster ride through the solar system
CHANNEL | BBC Four
FIRST BROADCAST | 22 July 2005
DURATION | 8 minutes 56 seconds
Although the Earth feels pretty safe to us, the cratered surface of the Moon shows all too clearly the destructive power of the asteroids and comets that hurtle through space. Often missing the Earth by a cosmic whisper but capable of causing massive devastation, the threat of the rogue meteor is one we ignore at our peril.
The facts in this programme were correct at the time of first broadcast.
Does ET really exist? Is there life on other worlds?
Solar sails and wormholes may provide man with a key to the stars.
The perilous orbits of planet Earth.
The Sun brings our planet life, but will one day destroy it.
Heavy doses of radiation and solar flares stand between us and Mars.
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