Commander Chris Hadfield, the astronaut currently living aboard the International Space Station, has tweeted that he will be photographing people's efforts during Earth Hour later today.
Good Morning, Earth! I'll try and photograph people's efforts during Eartrh Hour today. It's our planet, let's each help a bit.
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A bronze drum, alongside a plaque for Fusilier Rigby, will be located at Middleton Memorial Gardens.
The desk, where the author wrote Great Expectations and his last, unfinished novel The Mystery of Edwin Drood, will go on permanent display.
We spring forward an hour at 1am on Sunday, to mark the start of British Summer Time.