Seeing The Invisible

Science & Reason on Facebook: http://tinyurl.com/ScienceReason

Hubblecast 23: Seeing The Invisible.

---
Please subscribe to Science & Reason:
• http://www.youtube.com/Best0fScience
• http://www.youtube.com/ScienceMagazine
• http://www.youtube.com/ScienceTV
• http://www.youtube.com/FFreeThinker
---

The Universe is a black void, with a scattering of stars, nebulae and galaxies - or so it appears to observers using visible light. But if we include other forms of radiation invisible to us, the picture changes completely: clouds of interstellar hydrogen gas, emitting radio waves; stellar nurseries, glowing in the infrared; explosive outbursts of gamma rays and the all-sky background hiss of the Big Bang, diluted by almost fourteen billion years of cosmic expansion.

So how do astronomers learn about the unseen Universe? By building telescopes and detectors that can see the invisible. Watch this Hubblecast episode and find out more.

---

Credit:
• ESA/Hubble (M. Kornmesser & L. L. Christensen)
• Visual design & Editing: Martin Kornmesser
• Animations: Martin Kornmesser & Luis Calçada
• Web Hosting: Leibniz-Rechenzentrum (LRZ)
• Web Technical Support: Lars Holm Nielsen & Raquel Yumi Shida
• Written by: Govert Schilling & Lars Lindberg Christensen
• Host: Dr. J
• Narration: Howard Cooper & Bob Fosbury
• Cinematography: Peter Rixner
• Music: movetwo
• Directed by: Lars Lindberg Christensen

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
.

Category:

Science & Technology

Tags:

• Seeing
• The
• Invisible
• Hubblecast
• 23
• HD
• NASA
• ESA
• ESO
• JPL
• Cast
• Hubble
• Spitzer
• Very
• Large
• Telescopes
• VLT
• Space
• Station
• Shuttle
• Universe
• Big
• Bang
• Black
• Holes
• Dark
• Matter
• Energy
• Ultra
• Deep
• Field
• Galaxies
• Milky
• Way
• Stars
• Solar
• System
• Stellar
• Supernova
• Nebulae
• Clusters
• Planets
• Moons
• Exoplanets
• Mars
• Sun
• Gamma
• Rays
• Speed
• Of
• Light
• Cosmic
• Microwave
• Background
• Radiation
• Mission
• Herschel
• Planck
• Kepler
• Sagan
• Hawking
• Cobe
• Science
• Astronomy
• Astro
• Physics
• Astronomers
• Videos
• Images

[IdleGod]

Holy crap, there really is 720p video hidden on youtube. Its slow as hell to download, but kind of neat for the 1% of videos that would make it worthwhile...

[FFreeThinker]

Actually it's 1080p. Uploading and processing took more than 4 hours.

[ChairmanKiel]

:D Omg. I love the fact vote bots attack these videos. What a bunch of wankers. Fuck people who don't appreciate science. All of those type of people should be barred from medical help.

[happysplodie]

I'm not a decorated astronomer, or physicist; I just enjoy this stuff as a hobby.

I'll give you 3 pieces for free:

1) A broadcast system uses encoding and decoding to make sense of radio waves and is different then naturally occurring waves in the universe. The radio waves you're referring to are made with the intention broadcasting audio, not text. It's all information in the end.

2) You're a troll. This will be my last response to you.

3) Consider proper punctuation in the future.

-H

[Alexbl100]

@liketheuniverse11 yeah the desire to learn doesn't relate in any way to God. I can't believe you actually can relate God with this... The God of bible is imaginative and he was imagined by ordinary people. Something like this doesn't require intelligent creator or anything of that sort... like oxygen doesn't require us to bind with H2... it just goes with the flow...

[gadionson1]

best video ...

[wizard970]

@liketheuniverse11 Yes, Thor did a magnificent job on the creation. He thanks you for the recognition.

[liketheuniverse11]

I love science very much and I admire all the scientists. The more they know about everything, the more I admire GOD!!!! The One who made it all !!!! The One who made all of us, with many different levels of understanding !!! We shouldn't hate one another, just have patience! We are all learners in this short human life!!! :D

[baeritukaez]

@IdleGod

Only slow if you are on dial up....

[3tangle3]

what do they think mass thumbing down wil achieve ahaha I'll still watch it if it sounds good!

[johnpatrick818]

did anyone else start to get: "wow...cool."

just echoing about in their heads about 3 seconds into this video?

[IdleGod]

@hrbear Heh, since then, youtube has released HTML5 and 1080p video. HTML5 video is smooth and looks beautiful at 720p or 1080p. Its flash that makes it CPU intensive. Its a good reason for flash to be obsoleted as soon as possible.

[hrbear]

@minalow8 The guy in the video is very lucky because he is thin. I can't succeed with my diet, and I have to loose some 10 Kgs. Unfortunately I'm falling in the temptation of chockolates and fast food.

[hrbear]

@IdleGod I normally watch at 360 and 480. 480 has very good quality. 720 is difficult to download at 2 Mbps DSL, they also very CPU demanding to watch them.