Stillaig.com » Hubble http://stillaig.com/blog Astronomy, the universe and more Wed, 23 May 2012 03:03:28 +0000 en hourly 1 http://wordpress.org/?v=3.1.3 How does the hubble space telescope see the hubble ultra deep field/hubble deep field? http://stillaig.com/blog/hubble/how-does-the-hubble-space-telescope-see-the-hubble-ultra-deep-fieldhubble-deep-field/ http://stillaig.com/blog/hubble/how-does-the-hubble-space-telescope-see-the-hubble-ultra-deep-fieldhubble-deep-field/#comments Wed, 02 May 2012 06:58:25 +0000 stillaig http://stillaig.com/blog/hubble/how-does-the-hubble-space-telescope-see-the-hubble-ultra-deep-fieldhubble-deep-field/ Question by : How does the hubble space telescope see the hubble ultra deep field/hubble deep field?
I know they’re pictures from billion years ago,but how come we can see them now with the hubble space telescope? It has something to do with light travel,but someone please explain in simple words. Also, can’t we see new born galaxies? Or will it take years before we can see the newer ones?

Best answer:

Answer by Chris R
You have asked a very good question here, one that undermines the principles of the universe as we see it.

The Ultra deep Field is simply a long exposure image of space, Like when you keep the shutter open on a camera to let in more light.

The reason we say that “the further from Earth you look the further back in time you see” comes about by the fact that whilst the speed of light is fast, The universe is also very large and it takes a long time for light to reach us from distant objects.

For example we know it takes around 8 minutes for light from the Sun to reach Earth. If im standing in front of you with a Laser pointer, and I turn it on it seems like it was instant, but If I stood on the Sun and did it, It would be a whole 8 minutes before you could see the light from the laser. Now if I were to shine a laser at you from a million light years away, it would take a million years for that light to reach you, In which time much will have changed.

As to your second question can we see newborn galaxies, The objects we see in space that are on the very edge of the observable universe, Are newborn galaxies and stars. At least they were 13 billion years ago when the light they produced started to travel towards Earth.

Hope this helped.

Know better? Leave your own answer in the comments!

]]> http://stillaig.com/blog/hubble/how-does-the-hubble-space-telescope-see-the-hubble-ultra-deep-fieldhubble-deep-field/feed/ 2 Is the theory of the hubble telescope reliable? http://stillaig.com/blog/hubble/is-the-theory-of-the-hubble-telescope-reliable/ http://stillaig.com/blog/hubble/is-the-theory-of-the-hubble-telescope-reliable/#comments Sun, 29 Apr 2012 06:59:09 +0000 stillaig http://stillaig.com/blog/hubble/is-the-theory-of-the-hubble-telescope-reliable/ Question by : Is the theory of the hubble telescope reliable?
Hiya, i would like to know whether the theory of the hubble telescope is reliable as i need to fill out a table..
I would like to know..
Hubble telescope: reliability, validity, limitation and effectiveness..
Please help!
Thaaaaanksss!

Best answer:

Answer by ignoramus
It’s not a theory, it’s a fact. I think you need to find out what the word “theory” means.

Add your own answer in the comments!

]]> http://stillaig.com/blog/hubble/is-the-theory-of-the-hubble-telescope-reliable/feed/ 1 Hubble space telescope questions help for science project? http://stillaig.com/blog/hubble/hubble-space-telescope-questions-help-for-science-project/ http://stillaig.com/blog/hubble/hubble-space-telescope-questions-help-for-science-project/#comments Wed, 25 Apr 2012 12:59:37 +0000 stillaig http://stillaig.com/blog/hubble/hubble-space-telescope-questions-help-for-science-project/ Question by some guy: Hubble space telescope questions help for science project?
1.where is the hubble telescope now?
2.what are some of the other object in orbit around the earth?
3.why is half the screen of the earth map in a darker grey colour
4.what are some names of some of the more usual nebulae

Best answer:

Answer by sd3r
22.5N; 130.1E; at 560.3km altitude.

at least it was there a second ago.

Give your answer to this question below!

]]> http://stillaig.com/blog/hubble/hubble-space-telescope-questions-help-for-science-project/feed/ 2 The Hubble space telescope is in orbit round the Earth? http://stillaig.com/blog/hubble/the-hubble-space-telescope-is-in-orbit-round-the-earth/ http://stillaig.com/blog/hubble/the-hubble-space-telescope-is-in-orbit-round-the-earth/#comments Tue, 10 Apr 2012 12:58:34 +0000 stillaig http://stillaig.com/blog/hubble/the-hubble-space-telescope-is-in-orbit-round-the-earth/ Question by : The Hubble space telescope is in orbit round the Earth?
Astronomers can take better photographs through the Hubble telescope than using telescopes on the ground. Explain why.

Best answer:

Answer by Anhinga
Because in space, there’s no interference due to the earth’s atmosphere.

Add your own answer in the comments!

]]> http://stillaig.com/blog/hubble/the-hubble-space-telescope-is-in-orbit-round-the-earth/feed/ 6 The Size of the Universe http://stillaig.com/blog/hubble/the-size-of-the-universe/ http://stillaig.com/blog/hubble/the-size-of-the-universe/#comments Mon, 19 Mar 2012 18:59:22 +0000 stillaig http://stillaig.com/blog/hubble/the-size-of-the-universe/ Article by Harvey Russell

The universe is obviously big, but how “big” it really is remains beyond any layman’s imagination. Just how big the universe is will be tackled below to give readers an idea of the conceivable size of the universe.

How big is the universe Current science of astronomy based their estimate of the size of the universe from their observations. Although the question sounds simple, the means to understanding the vastness of space and the universe is the total opposite.In the grand scheme of things, our world is just an insignificant dot in the universe that revolves around a tiny solar system in a world of countless suns. Our solar system, in turn, revolves around the center of another bigger  system called the Milky Way. This galaxy is just one of the billions of other galaxies that exist in the universe. A group of galaxies can form together to compose a super galaxy or a cluster of galaxies. Such enormous scale of complexity just keeps on growing to super gigantic proportions. It can even be thought that the universe has no ends, perhaps.

The Universe in Light Years Present technology has no way of understanding how big the universe is unless there is a method of observing far known objects accurately and measuring vast distances. Being the fastest way of transferring information in the universe, light is also the perfect unit of measurement that can used to determine the gaps between objects in the universe. In fact, the speed of light, which is roughly 3 x 108 m/s, is probably unattainable for any physical object. A “Light Year” is the unit of measurement used by astronomers to know the distance between two far away objects in space. Simply speaking, a light year is the distance that an unobstructed ray of light can reach in one year. Given the fact that light travels at 3 x 108 m/s, one light year translates to approximately 9.46 trillion kilometers. The nearest galaxy from our own Milky Way is believed to be 2,500,000 light years away! That means you have to travel 2.5 million earth years to reach our nearest galaxy neighbor. Imagine how many billions of billions of years you need to take a tour of the entire universe.The immensity of the size of the universe is mind-boggling, to say the least. Since we cannot physically measure the universe by traversing its entire length, the only way we can know its size is by observing light as far as we can. So far, the only reliable observatory platform that we have is the Hubble space telescope. This telescope can see the farthest and can tell us what happened a long time ago! Some observations that we know today actually happened millions or billions of years ago, but light from those events only reached the lens of the Hubble telescope recently. Being able to observe light from afar is not enough though. We also need to know the distance from where it started. Doing this is achieved with cosmic candles, tools used by astronomers that have a calibrated relation between brightness and distance. By using cosmic candles, astronomers have put arrived at a rough estimate of the universe at 93 billion light years. No longer such great technology news at present, but finding a much accurate tool in determining the exact size of the universe is yet to be invented.

Harvey Russell has been writing for several years now on a variety of topics.










]]> http://stillaig.com/blog/hubble/the-size-of-the-universe/feed/ 0 space telescope Hubble took photos of unseen things. Did it create it by observing it or who beat it to it ? http://stillaig.com/blog/hubble/space-telescope-hubble-took-photos-of-unseen-things-did-it-create-it-by-observing-it-or-who-beat-it-to-it/ http://stillaig.com/blog/hubble/space-telescope-hubble-took-photos-of-unseen-things-did-it-create-it-by-observing-it-or-who-beat-it-to-it/#comments Sun, 26 Feb 2012 06:58:14 +0000 stillaig http://stillaig.com/blog/hubble/space-telescope-hubble-took-photos-of-unseen-things-did-it-create-it-by-observing-it-or-who-beat-it-to-it/ Question by John M: space telescope Hubble took photos of unseen things. Did it create it by observing it or who beat it to it ?
Solid objects become solid by observation. Hubble telescope
took photos of apparent solid objects. Who or what observered it for it to exist ?

Best answer:

Answer by hi5
if u can supply ur question with some links about the topic
did u read this on newspaper or a site more source can be good to check what u r saying

Add your own answer in the comments!

]]> http://stillaig.com/blog/hubble/space-telescope-hubble-took-photos-of-unseen-things-did-it-create-it-by-observing-it-or-who-beat-it-to-it/feed/ 2 what forms of light can the hubble telescope detect? http://stillaig.com/blog/hubble/what-forms-of-light-can-the-hubble-telescope-detect/ http://stillaig.com/blog/hubble/what-forms-of-light-can-the-hubble-telescope-detect/#comments Sat, 14 Jan 2012 12:59:35 +0000 stillaig http://stillaig.com/blog/hubble/what-forms-of-light-can-the-hubble-telescope-detect/ Question by : what forms of light can the hubble telescope detect?
what forms of light can the hubble telescope detect?

Best answer:

Answer by quantumclaustrophobe
Some Infrared up to extreme ultraviolet.

What do you think? Answer below!

]]> http://stillaig.com/blog/hubble/what-forms-of-light-can-the-hubble-telescope-detect/feed/ 1 How big is the hubble telescope? http://stillaig.com/blog/hubble/how-big-is-the-hubble-telescope/ http://stillaig.com/blog/hubble/how-big-is-the-hubble-telescope/#comments Mon, 02 Jan 2012 12:58:35 +0000 stillaig http://stillaig.com/blog/hubble/how-big-is-the-hubble-telescope/ Question by bob: How big is the hubble telescope?
How big is Hubble telescope lens whats the movement of Hubble,where is it in space

Best answer:

Answer by Adorabilly
Primary mirror:
The main mirror of the Hubble Space Telescope, measuring 2.4 meters (94.5 inches) in diameter. The primary mirror captures light from objects in space and focuses it toward the secondary mirror.

Secondary mirror:
A smaller mirror (0.3 meters, or 12.2 inches) that redirects the light coming from the primary mirror through a hole in the center of the primary mirror and onward to the science instruments.

Focal plane:
Where Hubble’s images are formed. The mirrors focus the starlight onto the focal plane, which is roughly the size of a dinner plate. The light is then picked up by the science instruments.

Corrective optics: Corrective apparatus “worn” by each science instrument to compensate for the imperfect shape of the primary mirror. COSTAR provided the corrective optics for the original science instruments. (http://hubblesite.org/the_telescope/nuts_.and._bolts/optics/optics2.php)

This website lets you track where the hubble is currently

http://hubblesite.org/the_telescope/where.a.s_hubble_now/

Know better? Leave your own answer in the comments!

]]> http://stillaig.com/blog/hubble/how-big-is-the-hubble-telescope/feed/ 2 How large is the Hubble telescope? http://stillaig.com/blog/hubble/how-large-is-the-hubble-telescope/ http://stillaig.com/blog/hubble/how-large-is-the-hubble-telescope/#comments Fri, 02 Dec 2011 00:59:02 +0000 stillaig http://stillaig.com/blog/hubble/how-large-is-the-hubble-telescope/ Question by chasvanblom: How large is the Hubble telescope?
I am researching a few stats about the Hubble scope that we placed *out here* 18 years ago TOMORROW!
How large (area-wise) is the Hubble telescope?

Best answer:

Answer by Tina L
teh hubble primary mirror is 2.4 meters in diameter

its not a schmit-cassegrain telesscope. its a ritchie-chretien telesscope.

What do you think? Answer below!

]]> http://stillaig.com/blog/hubble/how-large-is-the-hubble-telescope/feed/ 3 Is there a new Hubble telescope coming soon? http://stillaig.com/blog/hubble/is-there-a-new-hubble-telescope-coming-soon/ http://stillaig.com/blog/hubble/is-there-a-new-hubble-telescope-coming-soon/#comments Sat, 26 Nov 2011 18:59:35 +0000 stillaig http://stillaig.com/blog/hubble/is-there-a-new-hubble-telescope-coming-soon/ Question by Lukas!: Is there a new Hubble telescope coming soon?
When is the next Hubble telescope being sent out? And when was the last?

Best answer:

Answer by DaveSFV
HUH? There is only one Hubble telescope and there is not going to be a Hubble ll. Yes, there will be and are now telescopes being placed into space.

Know better? Leave your own answer in the comments!

]]> http://stillaig.com/blog/hubble/is-there-a-new-hubble-telescope-coming-soon/feed/ 1