What kind of lens should I use to make a Galilean telescope an astronomical telescope will be better?


Posted November 4th, 2010 by admin 1 Comment »
telescope
Siddharth asked:


I like the Universe, but i have no telescope. They are not available in our area. So, i decided to make it on my own. Help me for galilean or astronomical telescope
What type of lens for objective and eyepiece?

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Posted in Astronomy & Space | 1 Comment »

How can the hubble telescope see light from the big bang?


Posted January 30th, 2009 by admin 9 Comments »
telescope
phantomknightlad asked:


I heard that the hubble telescope is able to see the universe just after it was born. I do not see how this is possible because I figure the light from the initial big bang would have passed by earth long ago. Are we seeing a slower form of light, or am I just missing something?

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Posted in Astronomy & Space | 9 Comments »