Thousands of Mexicans spent Saturday night with an eye in the sky to observe the stars and celebrate that 2009 is the International Year of Astronomy, which celebrates 400 years are met from Galileo did for the first time with a telescope.

It was in 1609 when the scientist first pointed to the sky with a telescope and became the father of modern astronomy, which is why UNESCO declared in 2009 as the International Year of the science.

In over fourteen archaeological sites scattered across the country and in the Zocalo of Mexico City and nine other main squares in different places like Puebla, thousands of Mexicans gathered to repeat the feat with or without telescopes.