• Question: What is a star?

    Asked by allismae to Ed, Katie, Sam, Steve, Vera on 21 Jun 2011.
    • Photo: Steven Daly

      Steven Daly answered on 17 Jun 2011:

      Good question. A star is just like the Sun, but billions of miles away. A star is basically a huge ball of gas, so huge that at the centre there temperature is a few million degrees and the pressure 10000 times greater than the atmosphere on earth. In the centre hydrogen fuses to form helium, which means essentially they are undergoing a giant nuclear explosion all of time. It is this makes all the light and heat that makes Earth such a nice place to live.

    • Photo: Katie Marriott

      Katie Marriott answered on 19 Jun 2011:

      What Steven said. A big ball of burning gas that is very hot with a big nuclear reactor in the middle!

    • Photo: Sam Tazzyman

      Sam Tazzyman answered on 20 Jun 2011:

      Thank goodness for stars!

    • Photo: Vera Weisbecker

      Vera Weisbecker answered on 21 Jun 2011:

      LIke Steven and Katie said. Good to know that the nuclear power station that heats our planet is millions of miles away!

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