In the name of Allah

What kind of extra-curricular events does your school/college organise? Have you ever participated in any of them? Do you think that extra-curricular activities are important? Why / Why not? In your opinion, which extra-curricular activities are most interesting? Why?

What day is it today ? What is the date ?

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Using brainstorming strategy, give words related to Universe!

Who lives in this universe?

Aliens

Is there anybody out there? Unit 2 Lesson 1 Is there anybody out there?

In this lesson, you are going to : Objective: In this lesson, you are going to : Read a text Answer some questions as reading the text. Decide the correct meaning of the new words.

Open your book at p. 18!

Because of the rapid technology, scientism have been able to attempt to get some answers. Which questions has been asked for centuries? controversial = causing discussing Extraterrestrials = aliens

Which questions has been asked for centuries? Are we alone in the universe? Do aliens really exist? And if so, is there any way to contact them?

In which centuries were books published about extraterrestrials? Many scientists were convinced that alien existed such as French inventor, Charles Cros. He said that the lights on Mars indicated the existence of a major city. Cros spent most of his life trying to persuade the French government to pay for the construction of an enormous mirror which would be used for sending signals to the Martians. The French government, however, was not convinced that his idea would work and did not give him the money to build the mirror In the 19th century

Martian = imaginary people who live on the planet Mars

In the 20th century space travel became a reality. In 1972, NASA launched an unmanned spacecraft called Pioneer 10 into the solar system. Pioneer 10 carried with it a gold plaque, the Pioneer Plaque, which gave diagrams of the human body and of the Earth’s position in the solar system. The purpose of the Pioneer Plaque was to communicate some basic information about humankind to any intelligent species that might come across the spacecraft.

In 1977, NASA launched two probes into the solar system, Voyager 1 and Voyager 2, in order to gather more information about Jupiter and Saturn. Both probes will take about 40,000 years to reach Alpha Centauri, the star nearest the sun, spacecraft

Perhaps the most significant attempt at communication with extraterrestrials was the 1974 ‘Arecibo Message’. This was a radio message that was transmitted into space using the Arecibo radio telescope which is located in Puerto Rico. The message was composed of images which showed, things, the numbers one to ten, the structure of DNA, the figure of a man and the solar system. The message was directed at a star cluster called M13, and the transmission lasted about three minutes. Unfortunately, the M13 cluster of stars is so far away from Earth that it will take approximately 25,000 years for the message to reach its destination, so we won’t be receiving a response any time soon!

Today, there is a software, which is called SETI@home, will collect data transmitted from a device located near the Arecibo telescope. The data will then be sent to members of the research team so that they can analyse it and determine whether a signal has been received from extraterrestrials.

In spite of our best efforts, we have not receive a communication from aliens.