I know a lot of people who obsess about what they eat just so they can go off and eat three chocolate bars. Since I started the detox a couple of years ago, I don’t count calories, I don’t go to the gym and I don’t weigh myself I just go by how my clothes fit me. I’ve got a special trying-on dress which lets me know if I’ve put on weight. Apart from that, I feel really good on it, the detox gives me energy, it gives me a clearer head and my skin looks better.Has your life worked out the way you planned it?Selina Bayels, Kent I never planned it and I still don’t My advice is not to have a life plan. Although I’m booked on Countdown for a couple of years, I tend to plan about six months ahead When I signed for five years, I didn’t like that at all.

It’s a really weird sense to know what you’re doing for the next five years. When you have children you do have to plan a bit more, but I still haven’t got a life plan It makes it more exciting, you come across things. I don’t know if I’ll still be doing TV in five years’ time – I might go into politics. Who knows?’Carol Vorderman’s Detox for Life’ is published on January 4, by Virgin Books, priced £10.99. New year revellers might have been forgiven for believing that aliens had arrived when a bright light appeared in the southern sky. In fact it was the planet Jupiter, which outshone everything but the Moon. Galileo was the first person to observe them, through his hand-built telescope in 1610.Those with more modern instruments might have spotteddetails of Jupiter’s cloudy atmosphere, including the permanent storm, known as the Great Red Spot, which swirls around the planet.Jupiter is normally the fourth brightest object in the sky, after the Sun, the Moon and Venus.

Sometimes it is even outshone by Mars when the two planets are, respectively, furthest and closest to Earth in their orbits around the Sun.Jupiter is mostly composed of dense gases which get thicker towards the planet’s centre. However, scientists believe that it may also possess a rocky core about 10 or 15 times the mass of the Earth. The planet radiates slightly more energy than it receives from the Sun, which is thought to result from heat generated by gravitational compression within its solid core.One of the most surprising discoveries about Jupiter was made following a visit by the space probe Voyager 1 in 1970, which found planetary rings similar to the famous rings of Saturn, but much fainter.Like those on Saturn, the rings of Jupiter are composed of fine grains of rock that have been spun off into space.* The National Space Science Centre in Leicester will become Britain’s leading facility for providing information about the dangers of an asteroid collision with Earth, the Science minister, Lord Sainsbury of Turville, said yesterday. The centre was chosen out of a shortlist of three institutes vying to handle data on asteroid threats..