Monthly Archives: July 2013

amazing facts about sun rise and sun set from International Space Station
amazing facts about sun rise and sun set from International Space Station amazing facts incredible facts interesting facts general knowledge amazing videos o...

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amazing facts about sun rise and sun set from International Space Station - Video

SpaceX #39;s Dragon capsule departs from International Space Station

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SpaceX's Dragon capsule departs from International Space Station - Video

Let #39;s play Space Station 13: chapter 5 - Daddy, why you eat my fry?
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Let's play Space Station 13: chapter 5 - Daddy, why you eat my fry? - Video

NASA #39;s Commercial Crew Program Industry Partners Work Toward Space Station
CCP Industry Partners Work Toward Space Station NASA #39;s Commercial Crew Program manager and three aerospace industry partner representatives discuss America #39;s...

By: okrajoe

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NASA's Commercial Crew Program Industry Partners Work Toward Space Station - Video

Earth as seen from the ISS (International Space Station)
Earth ... as seen from the ISS Hello, I have created this video as a tribute to all of the men and women who serve on board the ISS (International Space Stat...

By: SylRoyCorsica

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Earth as seen from the ISS (International Space Station) - Video

The Swapper Gameplay Part 2 - Scary Space Station
NEW The Swapper, Gameplay Walkthrough part 2. Follow our Twitter: http://twitter.com/MassiveNetwork We #39;re on Facebook! http://fb.me/MassiveNetwork Our Google...

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The Swapper Gameplay Part 2 - Scary Space Station - Video

Starmade - Space Station and Docking Tutorial
Symmetry Building, Power Gen, Power Storage, Shields, Weapons Free (Right now) at: http://star-made.org/ Twitter: GarthRS FaceBook: Garth RS Gmail: garthrs@g...

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Starmade - Space Station and Docking Tutorial - Video

Server Saturdays - Season 8 - Episode 9 The Floating Orange, Space Station Epsilon and the Foxy Barn [Minecraft]
This week we visit a lovely floating house with a sweet bunker, we head into space inside of a broken spaceship, and finish off by taking some time off at a ...

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Server Saturdays - Season 8 - Episode 9 The Floating Orange, Space Station Epsilon and the Foxy Barn [Minecraft] - Video

Kerbal Space Program - Part 7 - Space Station 13
Duncan builds the core of a space station! hearts; T-shirts and Jumpers: http://yogscastlalna.spreadshirt.com/ hearts; Join us and get partnered on YouTube: http://awe.s...

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Kerbal Space Program - Part 7 - Space Station 13 - Video

Public release date: 2-Jul-2013 [ | E-mail | Share ]

Contact: Jessica Nimon jessica.t.nimon@nasa.gov NASA/Johnson Space Center

The sun lightens our world and enlightens our scientists as they look to our closest star for a better understanding of solar activity and what it means for our planet. Unique data from solar studies help researchers build on their knowledge of the Earth's atmosphere and climate change. June 30 marked the second time the International Space Station literally went out of its way to accommodate this research by providing a better viewing opportunity to meet Solar facility science objectives.

"The European scientists requested that we reposition the station slightly because by having this period of time they could bridge over the two Solar observing visibility windows, allowing them to view the sun for a full solar rotation without interruption," said International Space Station Program Scientist Julie Robinson, Ph.D. "The International Space Station Program took a look at the request and was able to change the station's position to increase science return."

The first station adjustment took place between Dec. 1 and 11, 2012, when the attitude of the orbiting laboratory was temporarily altered by about 7.5 degrees to provide a longer viewing time of the sun for the European Space Agency's (ESA) Solar observatory on the External Payload Facility of the Columbus module. This summer adjustment to the space station's position offers an additional opportunity to follow an entire solar rotation, approximately 27 days as determined by viewing sunspots from Earth.

"A very important contribution from the Solar 'bridging' measurements is the possibility it brings to perform inter-comparisons over an entire period of a Solar rotation with data from other solar instruments in orbit (e.g. a comparison of ESA's Solar-SOLACES data and NASA's SDO/EVE data)," said ESA Solar Project Scientist Astrid Orr, Ph.D. "The December bridging already shows that these particular data sets agree extremely well with each other."

The measurements for this Solar window observation are planned to run from June 18 to July 23, with the bridging event beginning on July 1. Normally viewing from the station only allows for short visibility windows of 10 to 12 days at a frequency of about once a month. After that timeframe, the observation window is blocked by the structure of the station itself, such as the solar arrays. Changing the position of the station increases the visibility of the sun, enabling scientists to view a full rotation from the orbital vantage point.

The Solar observatory launched to the station in February 2008 and currently houses two active investigations: Solar-SOLACES and Solar-SOLSPEC. Solar-SOLACES, which stands for Solar Auto-Calibrating Extreme UV/UV Spectrophotometers, collects data between 15 and 220 nanometers (nm) for extreme-ultraviolet/ultraviolet solar spectral irradiance. Solar-SOLSPEC, which stands for Solar Spectral Irradiance Measurements, measures between 180 to 3,000 nm for absolute solar spectral irradiance. Solar irradiance measurements tell scientists how much energy reaches Earth's atmosphere from the sun during any given period of time.

The goal of these studies is to gain accurate solar spectral irradiance measurements to understand variations in our environment due to solar radiation. With solar activity increasing, the timing of this adjustment will accommodate the investigations for improved science returns. These data can contribute to improved modeling of sunspots and other solar phenomena. The information also contributes to atmospheric and climatic models, helping researchers to predict sun and space weather activities.

"The bridging makes it possible for the scientists to develop a method for 'melting' both sets of data into one reference set of data in absolute physical values for the science community, which includes both solar physicists and climate researchers," said Orr.

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Space station gets an attitude adjustment for solar science