The latest news from the International Space Station:
Monthly Archives: December 2014
Sci-Tech: Mach’s principle, James Woodward, and propellantless propulsion
Last January at the NASA Innovative Advanced Concepts Symposium, Gary Hudson, head of the Space Studies Institute, outlined the experimental investigation that James Woodward at California State University Fullerton has been doing for many years into the question of whether Mach’s principle leads to propellantless propulsion. (See Gary’s talk in this NIAC 2014 video.)
Recently Charles Platt posted an interesting update on Woodward’s work : Strange thrust: the unproven science that could propel our children into space – Boing Boing.
The Space Studies institute has been providing some funding for Woodward via SSI’s Exotic Propulsion Initiative. There is a donation button there if you would like to help the project.
Video: Attempts to explain loss of water from Mars
Here’s a SETI Institute seminar by Stephen Brecht on the question of what happened to the water believed once to have covered significant portions of Mars: Attempts to explain water loss from Mars – SETI Institute
From the video caption:
The debate about whether or not Mars ever had life upon it centers on the issue of water.
Was there water on Mars? If so, where has it gone? One of the explanations for the water loss focuses on the idea that the solar wind is removing the water by acceleration ionospheric ions and removing them from Mars.
The problem is complicated by a variety of features: the presence of crustal magnetic fields on the surface of Mars, the photo-chemistry taking place in Mars’ atmosphere/ionosphere, and the solar activity (EUV flux and solar wind behavior), and finally the small size of Mars. These features make for a very non-linear interaction which in many regions has little to do with fluid dynamics but rather plasma kinetics.
In this talk a discussion of these issues as well as results of kinetic plasma simulations with data comparisons will be presented. Dr. Brecht will also discuss how the results from the ongoing MAVEN mission at Mars can be used to test the presented plasma simulation predictions.
Kickstarter: AROUND – an animated adventure film
Artist Jamie Givens has opened a Kickstarter campaign to fund the creation of an animated film celebrating exploration and adventure: AROUND Animated Adventure Film by Jamie Givens — Kickstarter
![27839edacd69124302aaf09a3304c6d0_large[1]](https://i0.wp.com/hobbyspace.com/Blog/wp-content/uploads/2014/12/27839edacd69124302aaf09a3304c6d0_large1-300x168.jpg?resize=300%2C168)
The story I want to tell is a celebration of these and other explorers and adventurers, told in an animated epic poem. The animation style will be similar to a motion comic, but with much more atmosphere and drama, with a focus on beautiful, detailed art. We will render those moments of grit, blood, sweat and clenched teeth. Pushing through an Antarctic storm while pulling a 500-pound sledge. The lightning crack as a cornice collapses en-route to a mountain summit. The freezing spray of foam across the face in a Southern Ocean gale. This is a story of climbers, sailors, astronauts, big-wave surfers, skiers – anyone who has ventured into the unknown to see what is on the other side. Those who go, and see and do. Those who go up, over and AROUND.
I am a climber, sailor, skier and mountaineer, and have been inspired my whole life by epic stories of exploration. Through AROUND I wish to do my part in continuing to inspire the next generation of explorers and doers. I’m sure many people who are reading this have experienced that moment of bliss and joy when seeing something for the first time, earned by hard steps, burning lungs and sacrifices along the way. You are the people I am appealing to to help make this film happen.
![143d0ea8a32ae271bf9dc2ae8dc685be_large[1]](https://i0.wp.com/hobbyspace.com/Blog/wp-content/uploads/2014/12/143d0ea8a32ae271bf9dc2ae8dc685be_large1-300x168.jpg?resize=300%2C168)
European Extremely Large Telescope (E-ELT) gets construction green light
The current generation of large telescopes are amazing but the E-ELT will dwarf them:
Green Light for E-ELT Construction
This artist’s impression shows the European Extremely Large Telescope (E-ELT) in its enclosure. The E-ELT will be a 39-metre aperture optical and infrared telescope sited on Cerro Armazones in the Chilean Atacama Desert, 20 kilometres from ESO’s Very Large Telescope on Cerro Paranal. It will be the world’s largest “eye on the sky”. Credit:ESO/L. Calçada
At a recent meeting ESO’s main governing body, the Council, gave the green light [1] for the construction of the European Extremely Large Telescope (E-ELT) in two phases. Spending of around one billion euros has been authorised for the first phase, which will cover the construction costs of a fully working telescope with a suite of powerful instruments and first light targeted in ten years time. It will enable tremendous scientific discoveries in the fields of exoplanets, the stellar composition of nearby galaxies and the deep Universe. The largest ESO contract ever, for the telescope dome and main structure, will be placed within the next year.
The E-ELT will be a 39-metre aperture optical and infrared telescope sited on Cerro Armazones in the Chilean Atacama Desert, 20 kilometres from ESO’s Very Large Telescope on Cerro Paranal. It will be the world’s largest “eye on the sky”.
“The decision taken by Council means that the telescope can now be built, and that major industrial construction work for the E-ELT is now funded and can proceed according to plan. There is already a lot of progress in Chile on the summit of Armazones and the next few years will be very exciting,” said Tim de Zeeuw, ESO’s Director General.
The construction of the E-ELT was approved by ESO’s Council in June 2012 under the condition that contracts with a value larger than 2 million euros could only be awarded once the total cost of the telescope (1083 million euros at 2012 prices) was funded to a 90% level. An exception was granted for the civil works at the site, which started with thegroundbreaking ceremony in June 2014 and are making good progress.
For the time being, 10% of the overall project costs have been shifted to a second phase. With the accession of Poland to ESO, the current funding commitments to the E-ELT have now reached more than 90% of the total cost of the first phase that will bring a fully working E-ELT. Additional commitments from upcoming Member State Brazil are expected in the coming years.
To prevent the project from slipping, the ESO Council has decided that construction of the first phase of the 39-metre telescope can now proceed. This funded work includes the contract for the telescope’s dome and main structure — the largest in ESO’s history — which will be awarded in late 2015, and leads to the construction of a fully working E-ELT.
Telescope components that are not yet funded include parts of the adaptive optics system, some of the instrument work, the innermost five rings of segments of the telescope’s main mirror (210 mirror segments) and a spare set of primary mirror segments needed for more efficient telescope operation in the future. The construction of these components, whose postponement does not reduce the extraordinary scientific achievements the telescope will already be able to accomplish at the end of phase one, will be approved as additional funding becomes available, including that expected from the upcoming Member State Brazil.
This image of the future home of the E-ELT was taken in November 2014 from ESO’s nearby Paranal Observatory. The levelling of the summit of Cerro Armazones is well advanced (lower left) and the new wider road that is being built up the mountain can also be well seen. At the time of the picture the Sun was setting over the Pacific Ocean and the last rays of its light were catching Cerro Armazones. The full Moon was also rising in the East at the same time. Credit:ESO/G. Lambert
For further information consult this FAQ and Messenger article that explains the details.
“The funds that are now committed will allow the construction of a fully working E-ELT that will be the most powerful of all the extremely large telescope projects currently planned, with superior light collecting area and instrumentation. It will allow the initial characterisation of Earth-mass exoplanets, the study of the resolved stellar populations in nearby galaxies as well as ultra-sensitive observations of the deep Universe,” concludes Tim de Zeeuw.