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"It was looking at me in my kitchen". A huge interstellar asteroid hurtling towards the sun could be an alien spaceship. A group of scientists led by Stephen Hawking will spend the day 'listening' to the 'cigar shaped asteroid' today using the world's largest radio telescope to see if they can find extraterrestrial forces. We asked - do you believe in aliens? Paul from Pontypool was one of our many callers.