Sunday, April 19, 2009

Exploring the Biggest Star!

Hello friends, this post is about the space missions that are going to explore the brightest star. Are you puzzled? A scientist team from European Space Agency which is backed by NASA has planned to send two missions to the biggest star in the universe which is the Sun.

Till now, the Sun has not been explored completely. But the two space mission will help the astronomers to unveil the secrets about the star. There are many unanswered questions like why the outer atmosphere of the Sun is hotter than its surface. The two space missions will travel more than seventy million miles to a hottest region where even the metals melt because of the temperature prevailing there. Though the two missions cannot be sent close to the Sun, it will orbit the Sun at around twenty million miles from its surface. To withstand the heat near the sun, the spacecraft will have a fifteen inch thick heat shield which will protect the two missions from the intense heat and radiation.

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