Steelworkers are marching through Westminster to highlight the crisis in their industry.
They are calling on the government to "ensure the responsible sale of Tata Steel's UK assets" and to deliver "a proper industrial strategy that supports the entire steel sector".
More top news
The scan of the object will begin on Wednesday, with astronomers using four different radio frequency bands. It will last around 10 hours.
Wednesday will be cloudy with more breezy and wet weather for many of us.
They met the stars of the new Star Wars movie at the Royal Albert Hall in London, arriving on the red carpet to be greeted by robot BB-8.