Question: Do U-F-O'S use petrol ?

Matthew Hurley answered on 23 Jun 2010:

Part of me wants to imagine a flying saucer filling up at Tesco’s! If ‘aliens’ exist and have means to travel I expect that they use other forms of energy other than petrol. To have petrol, you need oil, which comes from plant and animal life that’s been buried for thousands of years. We haven’t found plant life anywhere (although that doesn’t mean it doesn’t exist). It’d be interesting to think though – if oil were on mars – how long do you think it would take to get us there?!