Hubble's View Of The Universe [Part 9]

Hubble's View Of The Universe [Part 9 of 10]

THE HUBBLE TELESCOPE

Hubble works on the same principle as the first reflecting telescope built in the 1600s by Isaac Newton. Light enters the telescope and strikes a concave primary mirror, which acts like a lens to focus the light. The bigger the mirror, the better the image.

In Hubble, light from the primary mirror is reflected to a smaller secondary mirror in front of the primary mirror, then back through a hole in the primary to instruments clustered behind the focal plane (where the image is in focus).

THE UNIVERSE

Hubble's longest exposures are like a core sample of the universe, recording galaxies at many different distances. This is one of the deepest core samples ever taken. It shows a few nearby stars in our Milky Way galaxy. The rest of the objects are distant galaxies, extending from 1 billion to over 10 billion light-years away.

STARS

Stars live and die over the course of millions to billions of years. It is unusual to see changes in individual stars. To learn more about them, we must piece together snapshots of stars at different life stages — from birth to death.

The birth, life, and rebirth of stars is an ongoing process in the universe. The byproducts of this process include planets and the elements that make life possible.

GALAXIES

Galaxies come in diverse shapes and sizes. NGC 4414 — which is located about 62 million light-years away — is an example of a spiral galaxy. As with most spirals, the central region of NGC 4414 contains primarily older, yellow and red stars. The outer spiral arms are considerably bluer due to ongoing formation of young, blue stars.

The stars form a flat disk that circles the nucleus — a disk we see tilted, so it doesn't appear flat. Spiral galaxies like NGC 4414 display beautiful spiral arms made up of millions of young stars.

http://hubblesite.org/

Part 10
http://www.youtube.com/watch?v=T-qHL3vOVT0&v3

Category:

Howto & Style

Tags:

• Hubble
• Universe
• Astronomy
• Cosmos
• Stars
• Galaxies

[TheIlv4xtc]

We also are very much aware of one day our sun will die, as it dies it will take earth with it. Know one knows when, scientists guess it won't be for a few more billion years or so. But know one knows, it could be tomorrow, therfor we need an escape so man won't become extinked. someone is preparing

[TheIlv4xtc]

We are advancing in technoligy at an unbelievable rate, and although now we aren't able to travel the distance of a light year in a lifetime, they will be able to travel many light years in a matter of a decade, or years, mabe even months. I say they because it won't happen in our life time, or our childrens or their childrens. But one day it will happen. We in this life have lived in the age of scientific exploration, lived without the web, and enjoyed watching man kind evolve to mentaly.

[vidstrika22]

thnks

[RockOnAdamLambert]

I mean, are you sure that we cant do this with the water world? Hahahahaha! Nah, the scientists are too stupid to realize wat their really looking at... the world of inside DOG SHIT!!!!!!!!!! hahahahahaha. Ive truely, myself, have been out in the middle of the ocean, on a boat, stranded, and only had enough food for me and my dad to last for about 2 weeks. I made the best of it. Waz scooba diving the whole time. I saw creatures more amazing than you will ever see in space.

[greenarmadel]

clearly the works of god do not all talk of him, as he created all that exists and yet it does not all praise him

[mikilavush]

The works of God talk of him and glorify him wherever they are.

[zaskrt]

hey i never thought about that...but sounds logical...but it sounds like theres kinda conspiration and cause im paranoid, i rather don`t think about it any further

[deadline27]

the hubble pictures are all bullshit, if we can get these pics from god knows how far out, how come we cant get clearer pics of our own moon or mars, or any other planets in our solar system. total bullshit. pretty, yes. but bullshit.

[stanovnik]

Beautiful.