Canadian astronaut Commander Chris Hadfield, currently on board the International Space Station, has been tweeting images of major cities prior to Earth Hour.
He wrote, "New York City, lit up like a bulb. The Statue of Liberty is clearly visible in the night from above".
The commander also highlighted that "spiderwebs of light expanding out from the dark river border" could be seen of Detroit and Windsor.
More top news
An blast of cold air from the east could see the UK's coldest spell since 2013.
UK unemployment increased by 46,000 to 1.47 million, in the quarter to December 2017 - the first jump since the summer of 2016
The judges ruled that the women, who were attacked by Worboys in 2003 and 2007, were failed by the police.