Next year in International Year of Astronomy 2009 (IYA2009), Indonesia will take part in this event. Many plans has been made and several of them are parts of IYA2009 cornerstone project. Several preparations have been made since mid 2008 such as astroarcheology seminar on May 15th, 2008. The second seminars of Astronomy in Indonesian Culture held in 2nd Astronomy and Astrophysics Olympiads Exhibitions on 25th August 2008 and the other one will be held next year during IYA2009.
Four hundred years ago in 1608, based on a telescope invented in Netherland, Galileo made his own telescope. Later on, the telescope made by Galileo is also known as the terrestrial telescope. A year later, on August 1609 Galileo turned one of his telescopes to the night sky. In 1610 he used his telescope for an astronomical observation and made outstanding discoveries that changed all mankind conception. His observation on Venus proved that it revolves the sun and support heliocentric theory. Then controversy began, but as the time goes by many discoveries has been done and proved heliocentric theory.
Now, 400 years later, astronomy evolves, many discoveries have been made, the telescopes on the ground and in the space explore the Universe for 24 hours a day, across all wavelengths of light. World changes, science revolves, and humankind needs to know more about universe. It is the time for them to take part in excitement of exploring the universe. It is the time for you, no matter who you are and where you are, universe is yours to discover.