In this recent SETI Institute seminar video, Ioana Cozmuta of NASA Ames gives an overview of microgravity science and discusses research in biotech, materials processing, and other areas that offer an excellent potential for generating commercial products: Microgravity, the future of innovation – SETI Institute http://youtu.be/kT9pEFE9pBA
I’ve occasionally blogged about the focus fusion project at Lawrenceville Plasma Physics. With very modest funding they have made solid progress with experiments that seek to demonstrate that their approach can produce aneutronic fusion power in a relatively small system.
To support the completion of the project, they have opened a crowd-funding campaign : FOCUS FUSION: emPOWERtheWORLD – Indiegogo
We need to raise $200,000 to fund the purchase of new electrodes for the final phase of research, to prove that Focus Fusion works. And with your help, we can make this incredible breakthrough a reality!
Here is the video for the campaign:
To celebrate its 5th Anniversary, the Lunar Reconnaissance Orbiter mission presents Moon As Art !The images in the collection were created using data gathered by LRO over the first 4.5 years of operations. These top 5 images are presented to you, the public, to decide which will be the cover of the Moon As Art collection. Voting is open from May 23 — June 6th. The winner will be announced with the release of the full collection on June 18, 2014, the 5th anniversary of LRO launch.
On Sunday May 25th, The Space Show will present a special video webinar program on the topic of using rotation to provide artificial gravity. Joe Carroll will discuss his ideas on using tethers for such rotating systems.
WEBINAR: The Sunday, May 25, 2014 program from 1-3 PM PDT, (4-6 PM EDT, 3-5 PM CDT): This is our first WEBINAR for 2014. Our guest of honor is Joe Carroll and I will be assisted on the panel with Dr. John Jurist and Dr. Jim Logan. Joe is updating us on his partial gravity work which was the topic of an earlier webinar in May 2011. You can listen to the audio only for this show as you would any Space Show program. If you want to see the live webinar, go to our private UStream Space Show channel, www.ustream.tv/channel/the-space-show. Note that this show will archive audio and video simultaneously. The video of our webinar will be on our private Space Show Vimeo channel. Watch for details.
Joe Carroll has worked since 1981 on advanced space transportation, mostly involving long tethers. He led the development of the Small Expendable Deployment System (SEDS), which demonstrated controlled deorbit without rockets in 1993 and also flew successfully on SEDS-2 in 1994, and TiPS in 1996. He also developed the deployer and wire for the Plasma Motor Generator (PMG), which demonstrated electrodynamic thrust in orbit. He has also worked on unmanned and manned reentry vehicle concepts for NASA and several startups. His main current work is on electrodynamic tethers.
[ Update: Some additional material has been made available for the show:
- Space Show Webinar, Sunday, 5-25-14 – Thespaceshow’s Blog
- Partial Gravity IAC2010 Presentation revised 2014May22 (pdf)
- DesignConceptsForAMannedArtificialGravityResearchFacilityForIAC2010Sept14 rev 2014May22 (pdf)
Here are articles from Robert Walker who examines Carroll’s tether concept. Walker includes several animations showing how a crew capsule and its spent upper stage could be tethered together to provide a spin gravity system at low cost:
- Joseph Carroll’s Ingenious Artificial Gravity Experiment – Soyuz In Tether Spin – Almost No Extra Fuel
- Crew Tether Spin For Artificial Gravity On Way To ISS – Stunning New Videos – Space Show Webinar On Sunday
- Ingenious Idea: Soyuz Crew in Tether Spin On Way to ISS – For Artificial Gravity – Almost No Extra Fuel
Here, for example, is an animation of a Soyuz spacecraft that is tethered to its upper stage.
For lunar gravity level:
Joe Caroll suggests a 600 meter tether. The final stage weighs a third of the weight of the Soyuz. This puts the centre of gravity of the assembly 150 meters away from the Soyuz, and 450 meters away from the final stage.
This lets you generate artificial lunar gravity with spin rate of 1 rpm.
At that rotation rate the Soyuz has delta v of 15.6 m/sec, the final stage travels at three times that speed, and the speed of the Soyuz relative to the final stage is four times that, 62.4 m/sec.
An auction of space collectibles at RR Auction did well especially for Apollo 15 astronaut David Scott : Joystick sets record price for space collectibles – AFP/Phys.Org
The price of space junk inched closer to the moon on Friday after a hand controller from the Apollo 15 mission sold at auction for $610,063—an apparent new record.
The joystick assembly from the fourth US manned lunar landing was snapped up by an online bidder whose identity was not disclosed by RR Auction, a Massachusetts auction house specializing in rare collectibles.
Robert Pearlman at collectSpace writes about the auction: Astronaut’s joystick used for Apollo moon landing tops half a million at auction – collectSPACE.
The Apollo 15 joystick controller and the crewman optical alignment sight (COAS) from the same spacecraft topped the sale’s results. The COAS, which was used by Scott to make star sightings and to align the lunar module with the moon’s horizon, sold for $126,180.
Both artifacts were removed from the lunar module Falcon at end of the lander’s use, prior to its intentional crash into the lunar surface. Scott and his crewmates, Jim Irwin and Al Worden, returned to Earth aboard the command module Endeavour.
Flown lunar module rotational hand controller, used
by Dave Scott and flown to the lunar surface on board
Apollo 15’s Lunar Module Falcon.