A 900 foot-wide asteroid is making the latest in a series of approaches towards Earth tonight.
The size of almost three football pitches, the asteroid will not collide with the Earth, but experts say there is a chance it could in 2036.
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The PM promises to double to 200,000 the number of homes built under an existing scheme aimed at easing Britain's housing shortage.
The Met Office has weather warnings in place for snow and ice until 10am in the north and west.
The plan, which would effectively strip banks of the benefit of recent corporation tax cuts, forms part of the party's election manifesto.