The journey time to Piccadilly Circus is about 50 minutes. There are three Tube stations at Heathrow Airport, serving Terminals 1-3, Terminal 4 and Terminal 5. A single paper ticket from Heathrow (Zone 6) into Central London (Zone 1) costs Â£5.70.
Golden record is attached to the spacecraft. Voyager 1 was launched in 1977, passed the orbit of Pluto in 1990, and left the solar system (in the sense of passing the termination shock) in November 2004.
Explorer 1 became the first successfully launched satellite by the United States when it was sent to space on January 31, 1958. A quick response to the Soviet Union's launch of Sputnik 1, Explorer 1's success marked the beginning of the U.S. Space Age.