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.
Trains leave every 15 minutes from Terminals 1&3 and 5. The service to Terminal 4 has been axed, and replaced with the Heathrow Express Terminal 4 'shuttle' to T12&3 (Mondays to Saturdays). Heathrow Connect is a domestic train which stops at intermediate stations, including Ealing Broadway which is on the tube.here are many local bus services to Heathrow. All stop at the Central bus station (between Terminals 1 and 3) as well as at Terminals 4 and 5. The bus station is open 24 hours a day and the Travel Centre is open from 06:00 to 22:30.