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The world's most powerful space telescope is set to blast off on Saturday to its outpost 1.5 million kilometres (930,000 miles) from Earth, after several delays caused by technical hitches.
We're about to have eyes on the invisible side of space.
James Webb Space Telescope will help study atmospheres of far-away planets
We're about to have eyes on the invisible side of space.
The world's most powerful space telescope, the James Webb Space Telescope will leave earth enclosed in its Ariane 5 rocket from Kourou Space Centre in French Guiana