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Juxi Leitner

SPACE.com -- Solar Sail Spacecraft Steers with Sunlight for First Time - 0 views

www.space.com/...ail-sunlight-steer-100806.html

technology space propulsion attitude control

shared by Juxi Leitner on 11 Aug 10 - Cached
  • Juxi Leitner on 11 Aug 10
     
    The Japan Aerospace Exploration Agency spacecraft Ikaros now represents the first solar sail to have harnessed sunlight for both attitude control and propulsion, after it first launched May 21 alongside the Venus-bound orbiter Akatsuki.
Joris _

KodiakDailyMirror.com :: Daily newspaper of Kodiak, Alaska - 0 views

www.kodiakdailymirror.com/?pid=19&id=9333

MAD Solar Sail

shared by Joris _ on 18 Nov 10 - No Cached
  • The NanoSailD is a solar sail designed to use light particles to accelerate. If all goes well it will be the first solar sail deployed by NASA.
  • It instead uses the sail for the humble but important mission of testing a potential orbit-cleaning tool.
Joris _

NASA Set to Launch Solar NanoSail into Space | Inhabitat - Green Design Will Save the W... - 0 views

inhabitat.com/...unch-solar-nanosail-into-space

shared by Joris _ on 20 Aug 10 - Cached
  • 100 square feet;
  • NASA is, rather, testing the deployment mechanism.
  • In 2008, engineers were given just four months to devise a solar sail. They pulled it off, but the rocket carrying the sail experienced launch failure.
  • ...1 more annotation...
  • to learn more about how best to bring older satellites out of space rather than allowing them to become that much more space junk
Isabelle DB

Electric solar wind sail spacecraft propulsion - 6 views

www.electric-sailing.fi

propulsion energy

shared by Isabelle DB on 15 Oct 10 - No Cached
LeopoldS liked it
  • Isabelle DB on 15 Oct 10
     
    Do you know this one ? (no time to go through the bookmarks...)
  • ...2 more comments...
  • duncan barker on 15 Oct 10
     
    Not sure whether the group has seen this idea before, but it seems interesting. I like it
  • LeopoldS on 18 Oct 10
     
    yes, we did have a look at it, I think back in 2007 but its maybe time to re-assess it ... will put it on the miscellaneous list for Dejan, the new propulsion and plasma RF to come in January ...
  • Luís F. Simões on 09 Dec 10
     
    They just got 1.7 million euros from the EU "to build the laboratory prototypes of the key components of the electric sail": http://en.ilmatieteenlaitos.fi/press-release/121643
  • LeopoldS on 11 Dec 10
     
    very interesting info indeed!!
Joris _

'Space yacht' IKAROS takes images of its solar sail :: Brahmand.com - 2 views

www.brahmand.com/...13.html

shared by Joris _ on 16 Jun 10 - Cached
LeopoldS liked it
  • LeopoldS on 16 Jun 10
     
    very nice!! could not find the dimensions yet ...
  • Joris _ on 16 Jun 10
  • LeopoldS on 17 Jun 10
     
    that is honestly a little bit less impressive than I had hoped for ... this "just" 200 m2 ... our Furoshiki net had already 130m2 and we deployed it within 1 min under much worse conditions ...
Juxi Leitner

World's First Successful Solar Sail Deployment (～翼を広げて～　IKAROS（イカロス）専門チャンネル) - 3 views

www.jspec.jaxa.jp/...bn005.html

JAXA solar sail mission propulsion

shared by Juxi Leitner on 11 Jun 10 - Cached
  • Juxi Leitner on 11 Jun 10
     
    google translate helps ;)
Juxi Leitner

JAXA | Launch Day of the H-IIA Launch Vehicle No. 17 (H-IIA F17) - 2 views

www.jaxa.jp/...20100303_h2af17_e.html

launch small satellites technology

shared by Juxi Leitner on 22 Apr 10 - Cached
  • Juxi Leitner on 22 Apr 10
     
    Interesting launch, not just the first Japanese Venus [0] mission, also an interplanetary university mission [1] and also a solar sail mission [2]. Looks very interesting ... [0] http://www.jaxa.jp/countdown/f17/index_e.html [1] http://www.unisec.jp/unitec-1/en/about_unitec-1.html [2] http://www.jaxa.jp/projects/sat/ikaros/index_e.html
aborgg

Graphene sponge can absorb light and emit energetic electrons for breakthrough solar sa... - 1 views

nextbigfuture.com/...onge-can-absorb-light-and.html

space technology

shared by aborgg on 04 Aug 15 - No Cached
  • aborgg on 04 Aug 15
     
    The unique structure and properties of graphene and the morphology of the bulk graphene material make it capable of not only absorbing light at various wavelengths but also emitting energetic electrons efficiently enough to drive the bulk material following Newtonian mechanics.
  • aborgg on 04 Aug 15
     
    Hard to believe this should actually work, but would be quite a breakthrough indeed. I wonder, since the material should build up a significant electric potential over time, thus, pulling back the ejected electrons. Well, the paper apparently is not peer-reviewed, and I found some rather critical comments in some forums. Let's see if the experiment will be verified by another research team in due course.
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