Telescope Buying Guide

Chron asked:


I am writing a 10 page essay for my Engineering class and I need to write about the engineering involved in building the telescope (in particular, the lens and actual telescope). I need to use technical resources explaining how the hubble works and am having troubles finding any online.

lobo from 71 asked:


you can buy time to use the hubble telescope but federal law bands the use to study the moon unless you are santioned by the military..why? maybe it is part of a cover up..like there are no landing sites to study, because it never happened?

kea asked:


gather information about the hubble space telescope.

what celestial bodies did this telescope picture so far?

Bonanza asked:


I’ve heard that scientists have said that the Hubble Telescope can see so far that it looks into the past. What does this mean exactly?

gary j asked:


Nasa usually has a proposed lifespan of projects at launch, I am wondering how the Hubble Space Telescope is doing in relation to that proposed lifespan and if exceeed howlong has it been extended.

Noname asked:


Forgive my ignorance at this.
If the hubble space telescope is seeing the early universe from billions of light years away, is our galaxy traveling at almost the speed of light away from the point where big bang occurred?

for example:
an explosion or a black hole was detected by hubble from around 14 billion light years away and our galaxy was already at this point(here). So we are seeing what is happening at 14 billion years ago at yet our galaxy must have came from that part where the explosion begins..

Sorry bout that, can’t explain further.

adil k asked:


You probably know the hubble telescope which is named after a famous scientist Edwin Hubble. I was wondering where would it go afters its mission and on wikipedia i read that its going to be deorbited probably from 2016 to 2021. But can you tell me that will it return to the earth or stay up in space like an interstellar probe?

severly lethargic asked:


this telescope can see at distances of thousands of light years.how is this possible?

rataru101 asked:


I know the Hubble telescope can produce microscopic pictures of Mars, but what about a telescope on earth? I don’t mean a $100 walmart telescope either, but the million dollar NASA ones.
If so, please try to provide the closest pictures you can find that used and state they used an Earth based telescope.

P.S. I say they can, and a friend says no way. I don’t much mind either way but I’m rather curious now…

Nazdaran asked:


Why is the Hubble Space Telescope considered to give the best images in the visible when telescopes such as the Keck 10 m telescopes have almost five times larger mirrors?.