Most asteroids lie in a vast ring between the orbits of Mars and Jupiter. This main asteroid belt holds more than 200 asteroids larger than 60 miles (100 kilometers) in diameter.hey are also known as planetoids or minor planets. In total, the mass of all the asteroids is less than that of Earth's moon. But despite their size, asteroids can be dangerous. Many have hit Earth in the past, and more will crash into our planet in the future.
Heathrow Express. Heathrow Express is an airport rail link between London Heathrow Airport and Paddington. It opened in 1998 and is operated by the Heathrow Express Operating Company, a wholly owned subsidiary of Heathrow Airport Holdings. It is an open access operator and not subject to franchising.
The Heathrow Express is a high speed train between Heathrow and London. The trains depart up to every 15 minutes and take just 15 minutes. Save Â£5 per ticket when you book now at the VisitBritain Shop, compared to buying when youâre on the train (standard class only)