NASA | Einstein's Cosmic Speed Limit

from NASA Goddard

00:00
345

To find out more visit: nasa.gov/mission_pages/GLAST/news/first_year.html

In its first year of operations, NASA’s Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi’s measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.

Stefanie Misztal and Scott Wiessinger produced and edited this video.

To find out more visit: nasa.gov/mission_pages/GLAST/news/first_year.html

In its first year of operations, NASA’s Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi’s measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.

Stefanie Misztal and Scott Wiessinger produced and edited this video.

# vimeo.com/7338571 Uploaded 2,258 Plays / / 0 Comments Watch in Couch Mode

Follow

NASA Goddard TV

Created by NASA Goddard

Watch Goddard TV for the latest in NASA's research into Astrophysics, Earth Observing, and Solar Science. You may be surprised what you find out!

Want more? Subscribe to NASA on iTunes!
phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434

Get tweeted by NASA:
twitter.com/NASAGoddard

Friend us on Facebook:
facebook.com/people/Nasa-Goddard/1326612729#/profile.php?id=1326612729

NASA

…
+ More

Watch Goddard TV for the latest in NASA's research into Astrophysics, Earth Observing, and Solar Science. You may be surprised what you find out!

Want more? Subscribe to NASA on iTunes!
phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434

Get tweeted by NASA:
twitter.com/NASAGoddard

Friend us on Facebook:
facebook.com/people/Nasa-Goddard/1326612729#/profile.php?id=1326612729

NASA Flickr Photos:
flickr.com/photos/gsfc/

View Our Home Page:
nasa.gov/centers/goddard/multimedia

Shout Box

  • Prügivedu

    this is awesome!

    by Prügivedu

  • Guillaume J. Lauzier

    VJs TV presents Mapping Festival 2012
    vimeo.com/55630271

    We would like to present you a short film of this year Mapping Festival in Geneva. It is also an opportunity for us to launch our new website vjstv.com with over 1000 great videos of VJs and Videos Artists with also VJ Channel channel.vjstv.com streaming videos online. If you wish to submit a project check out vjstv.com/submit and fill in the form, we will gladly take a look.

    Filming, Editing, Animation by
    Guillaume J. Lauzier

    Music by
    Rory Phillips - Chamber Music (Original Mix)

    by Guillaume J. Lauzier

  • tilemathan

    International Olympiad on Astronomy and Astrophysics – Volos 2013-HDR timelapse
    vimeo.com/pentalunex/7ioaa

    by tilemathan

Browse This Channel

Channels are a simple, beautiful way to showcase and watch videos. Browse more Channels. Channels