Posts Tagged ‘astronomy’

‘A Universe From Nothing’ by Lawrence Krauss, AAI 2009

Friday, February 26th, 2010

Lawrence Krauss gives a talk on our current picture of the universe, how it will end, and how it could have come from nothing. Krauss is the author of many bestselling books on Physics and Cosmology, including “The Physics of Star Trek.”

Books by Lawrence Krauss:
http://www.amazon.com/Lawrence-M.-Krauss/e/B000AP7AZS/ref=ntt_dp_epwbk_0

Download Quicktime version
Small: http://c0116791.cdn.cloudfiles.rackspacecloud.com/Krauss-AAI09-web-sm-new.mov

720p HD: http://c0116791.cdn.cloudfiles.rackspacecloud.com/Krauss-AAI09-web-new.mov

Filmed & Edited by
JOSH TIMONEN

The Richard Dawkins Foundation for Reason and Science
http://richarddawkinsfoundation.org

Atheist Alliance International
http://atheistalliance.org

Duration : 1:4:52

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The Elegant Universe – Einstein’s Relativity

Saturday, February 20th, 2010

Einstein’s General Theory of Relativity explained.

Duration : 0:7:26

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What Hubble Taught Us About The Planets

Sunday, February 14th, 2010

Hubblecast 27: What Hubble Taught Us About The Planets.

For nineteen years, NASA/ESA’s Hubble Space Telescope has made some of the most dramatic discoveries in the history of astronomy but it has also helped scientists learn more about our own Solar System. From its vantage point 600 km above the Earth, Hubble has studied every planet in our Solar System except Mercury where light from the Sun would damage its instruments.


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Hubble has captured the impact of a comet on Jupiter, immense storms on Neptune and even tiny dwarf planets at the edge of our Solar System. The veteran telescope keeps a watchful eye on our solar backyard.

Regarded by many as the most valuable astronomical tool, the Hubble space Telescope is approaching its 19th anniversary in space. Hubble sees into the far reaches of the Universe but its powerful instruments have also surveyed our planetary neighbours. In this episode, well see what Hubble has revealed to us in our own solar backyard.

Even those who, for some strange reason, arent astronomy enthusiasts are likely to recognise some of Hubbles most famous images, like the “Pillars of Creation”in the Eagle Nebula or the Hubble Deep, and Ultra Deep, Fields which have shown us some of the most distant galaxies ever observed. The Hubble Space Telescope has really fundamentally changed our understanding of the universe at large, but with its high resolution images of planets and moons in our own Solar System, it has also taught us a lot about our own cosmic neighbourhood.

Hubble cannot observe our Sun, or the closest planet, Mercury, because its instruments are light-sensitive and would be damaged. However, the telescope has examined every other planet in the solar system, including dwarf planets Pluto, Ceres and Eris. But, of course, Hubble does not just produce pretty pictures, it provides planetary scientists with vital information about our neighbours that may help us better understand our own home planet, Earth.

More (PDF): http://www.spacetelescope.org/videos/scripts/hubblecast27a.pdf

Credits:
• ESA/Hubble (Martin Kornmesser, Colleen Sharkey & Lars Lindberg Christensen)
• Visual design & Editing: Martin Kornmesser
• Animations: Martin Kornmesser
• Host: Dr. J
• Narration: Robert Fosbury
• Cinematography: Peter Rixner
• Music: movetwo
• Web Hosting: Leibniz-Rechenzentrum (LRZ)
• Web Technical Support: Lars Holm Nielsen & Raquel Yumi Shida
• Written by: Lars Lindberg Christensen
• Directed by: Colleen Sharkey
• Additional photos and footage: United States Air Force photo by Senior Airman Joshua Strang, NASA-JPL/ESA, NASA/JHU/APL,

Dr. J is a German astronomer at the ESO. His scientific interests are in cosmology, particularly on galaxy evolution and quasars. Dr. J’s real name is Joe Liske and he has a PhD in astronomy.

Hubble European Space Agency Information Centre
Garching/Munich, Germany
• http://www.eso.org
• http://www.spacetelescope.org
• http://hubblesite.org
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Duration : 0:6:44

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The Hubble Deep Field: The Most Important Image Ever Taken

Thursday, February 11th, 2010

In 2003, the Hubble space Telescope took the image of a millenium, an image that shows our place in the universe. Anyone who understands what this image represents, is forever changed by it.

How Can the universe be 78 billion LY across? I explain that in this article:

http://www.deepastronomy.com/hubble-deep-field.html

There is also a link to a science paper on the topic, that paper actually states 96 billion LY.

http://arxiv.org/abs/astro-ph/0310233

Duration : 0:6:39

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Why Isn’t Pluto a Planet Any More?

Sunday, February 7th, 2010

Dr. Robert Hurt explains why Pluto got… well… plutoed.

Duration : 0:3:31

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Black Holes, Neutron Stars, White Dwars, Space and Time

Thursday, February 4th, 2010

A journey of simulations of Black Holes, Neutron Stars, White Dwarfs and space and Time. Though, it is only a simulation, nothing more.

The simulacrum is never that which conceals the truth–it is the truth which conceals that there is none.

The simulacrum is true.

Ecclesiastes

Duration : 0:2:32

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Planets and Stars (please read (more info) )

Thursday, January 14th, 2010

READ THIS FIRST! : The Size Of Planets and Stars to Scale (see NOTE)
Name of planets as shown:
Pluto Mercury Mars Venus Earth Neptune Uranus Jupiter Saturn
Name of Stars as shown:
Sun Sirius Vega Pollux Arcturus Aldebaran Rigel Deneb Pistol Star Betelgeuse Antares VV Cephei
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Name of Song: Stakka & K Tee – Rubber Bullet
Original video: http://www.youtube.com/watch?v=Z1NkoZeTEWc
Author: jaxxrr
Channel: http://www.youtube.com/user/jaxxrr
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NOTE: This video is a edited version of “Energy vs Information” made by jaxxrr (to which all credit goes to), I was very impressed by the production value both the video and music.

Seeing that it received few hits, which may be due to the title and tags. In order for more people to see and enjoy this video I mirrored the edited version, so people won’t get too side tracked on the political message. (Although I’m against wars and big oil as well)

Please see the original version if you like here http://www.youtube.com/watch?v=Z1NkoZeTEWc

-=NOTE=-
This video was made BEFORE “VY Canis Majoris” was listed as the largest known star, When this video was made 2006 by it’s author JAXXrr, the star “VV Cephei A” was listed as the largest known star.

For a list of current largest “known” stars see http://en.wikipedia.org/wiki/List_of_largest_known_stars
Keep in mind while watching this video that the “largest known stars” are all found in our own galaxy (The Milky Way). We know of only of a very few of the estimated 200-300 Billion stars that make up our galaxy, which is just ONE of at least 300-500 billion galaxies in the visible Universe.
To learn more about the Universe see this site; it will blow your mind!…
http://www.atlasoftheuniverse.com/12lys.html
Just keep zooming out……..

Duration : 0:2:39

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