Cannot see the back part of transparent globe

Hi every body,

May be its a noob question,but i not able to understand the problem.
I have a globe and i make it transparent,but i cannot see the opposite side of globe and at the same time i can see background screen exactly,as shown in attached image.

Please help!! and please excuse me for my poor English.

Thanks in Advance.

22163-capture1.jpg

You just need to set Cull to Off in your shader. That will tell Unity to render both front and back faces.