Latest Space News
Tue, 1 Dec 2015 08:14:00 +0100
Vega Flight VV06 Following today's launch readiness review at the Spaceport in French Guiana, Arianespace's lightweight Vega has been given the go-ahead for its mission Wednesday to orbit the European Space Agency's pioneering LISA Pathfinder technology demonstrator. This regular step in Arianespace's pre-launch preparations confirmed that the Vega launcher and its LISA Pathfinder payload are ready for flight, along with the Spaceport's infrastructure, and the downrange tracking station ne...
Mon, 30 Nov 2015 08:29:00 +0100
The solar system might be a lot hairier than we thought. A new study publishing this week in the Astrophysical Journal by Gary Prézeau of NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the existence of long filaments of dark matter, or "hairs." Dark matter is an invisible, mysterious substance that makes up about 27 percent of all matter and energy in the universe. The regular matter, which makes up everything we can see around us, is only 5 perc...
Fri, 27 Nov 2015 13:00:00 +0100
Two European instruments and four European contributions on two Russian instruments have been selected for the Russian-led science platform that will land on Mars as part of the ESA-Roscosmos ExoMars 2018 mission. The first of the two ExoMars mission is in final preparation for launch next March. It consists of the Trace Gas Orbiter, which will investigate the possible biological or geological origins of important trace gases in the martian atmosphere, and Schiaparelli, an entry, descent and...
Fri, 27 Nov 2015 09:31:00 +0100
Following months of intensive training, mission controllers for the LISA Pathfinder gravitational wave detection testbed will complete a final rehearsal tomorrow, ensuring that all is ready for the journey to space. Next week, a Vega rocket will lift LISA Pathfinder into space on a mission that will test-drive the hardware for detecting gravitational waves - ripples in spacetime, the very fabric of the Universe. Vega is expected to lift off at 04:15 GMT on 2 December from Europe's Spacepor...
Thu, 26 Nov 2015 18:12:00 +0100
Thales Alenia Space announced today that it has signed a contract with ARSAT Empresa Argentina de Soluciones Satelitales SA, to supply the payload for the third geostationary telecom satellite manufactured in Argentina, ARSAT-3, as well as options for two additional payloads. ARSAT, with headquarters in Buenos Aires, acting as Main Contractor and leading the GEO communication satellite development in Argentina, is using a similar industrial organization with INVAP, the Rio Negro Province high...
Thu, 26 Nov 2015 08:17:00 +0100
For the 11th launch of 2015 from the Guiana Space Center, the Vega light launcher on its overall sixth mission, this time on behalf of ESA, will orbit the LISA Pathfinder technology demonstrator, into an elliptical low earth orbit for a mission to the L1 Lagrange point. With this seventh launch of the year overall for European Governments, this time focusing on space research and science, Arianespace, once again, reflects the company's assigned mission of ensuring independent access to space ...
Thu, 26 Nov 2015 08:13:00 +0100
One of the most recognizable constellations in the sky is Orion, the Hunter. Among Orion’s best-known features is the “belt,” consisting of three bright stars in a line, each of which can be seen without a telescope. The westernmost star in Orion’s belt is known officially as Delta Orionis. (Since it has been observed for centuries by sky-watchers around the world, it also goes by many other names in various cultures, like “Mintaka”.) Modern astronomers...
Wed, 25 Nov 2015 16:36:00 +0100
NASA has successfully installed the first of 18 flight mirrors onto the James Webb Space Telescope, beginning a critical piece of the observatory's construction. In the clean room at NASA's Goddard Space Flight Center in Greenbelt, Maryland this week, the engineering team used a robot arm to lift and lower the hexagonal-shaped segment that measures just over 4.2 feet (1.3 meters) across and weighs approximately 88 pounds (40 kilograms). After being pieced together, the 18 primary mirror segme...
Wed, 25 Nov 2015 13:00:00 +0100
The two ExoMars spacecraft of the 2016 mission are being prepared for shipping to the Baikonur Cosmodrome in Kazakhstan ahead of their launch in March. A joint endeavour with Russia's Roscosmos space agency, ExoMars comprises two missions. The Trace Gas Orbiter (TGO) and Schiaparelli make up the 2016 mission, while the 2018 mission will combine a rover and a surface science platform. Both missions will be launched on Russian Proton rockets from Baikonur. TGO and Schiaparelli are undergoing...
Wed, 25 Nov 2015 12:00:00 +0100
A team of astronomers using ESO's Very Large Telescope (VLT) has captured the most detailed images ever of the hypergiant star VY Canis Majoris. These observations show how the unexpectedly large size of the particles of dust surrounding the star enable it to lose an enormous amount of mass as it begins to die. This process, understood now for the first time, is necessary to prepare such gigantic stars to meet explosive demises as supernovae. VY Canis Majoris is a stellar goliath, a red hyper...
Wed, 25 Nov 2015 08:12:00 +0100
Astronomers using data from NASA's Fermi Gamma-ray Space Telescope have detected hints of periodic changes in the brightness of a so-called "active" galaxy, whose emissions are powered by a supersized black hole. If confirmed, the discovery would mark the first years-long cyclic gamma-ray emission ever detected from any galaxy, which could provide new insights into physical processes near the black hole. "Looking at many years of data from Fermi's Large Area Telesco...
Tue, 24 Nov 2015 18:47:00 +0100
Thales Alenia Space announced today that the ExoMars 2016 spacecraft is about to leave the clean rooms at its plant in Cannes, where it is completing integration and testing, for shipment to the launch base in Baikonur, Kazakhstan. The launch campaign will then start, including propellant filling, final functional tests and mating with the launcher, for a launch scheduled in March 2016. ExoMars is a joint endeavor between the European Space Agency (ESA) and the Russian Space Agency (Roscosmos...
Mon, 23 Nov 2015 21:23:00 +0100
A NASA instrument to monitor aerosols, the ozone layer, and other gases in our atmosphere from space arrived Friday, Nov. 20 at NASA's Kennedy Space Center in Florida. The instrument will now begin final preparations for launch to the International Space Station. The Stratospheric Aerosol and Gas Experiment III on the International Space Station, or SAGE III on ISS, was shipped to Florida from NASA's Langley Research Center in Hampton, Virginia. The SAGE III instrument, developed at NASA Lang...
Mon, 23 Nov 2015 18:12:00 +0100
Last week, NASA announced that it had selected Virgin Galactic as a partner in its Collaborative Opportunities program. As part of this new partnership, NASA will provide Virgin Galactic with technical expertise and access to test facilities to aid the development of our LauncherOne small satellite launch service. Specifically, NASA's Ames Research Center experts will provide analysis, simulation, and expertise related to LauncherOne's concept of operations, aerodynamics system, thermal protecti...
Mon, 23 Nov 2015 08:35:00 +0100
Researchers using NASA's Fermi Gamma-ray Space Telescope have discovered the first gamma-ray pulsar in a galaxy other than our own. The object sets a new record for the most luminous gamma-ray pulsar known.  The pulsar lies in the outskirts of the Tarantula Nebula in the Large Magellanic Cloud, a small galaxy that orbits our Milky Way and is located 163,000 light-years away. The Tarantula Nebula is the largest, most active and most complex star-formation region in our galactic ne...
Fri, 20 Nov 2015 22:38:00 +0100
NASA took a significant step Friday toward expanding research opportunities aboard the International Space Station with its first mission order from Hawthorne, California based-company SpaceX to launch astronauts from U.S. soil. This is the second in a series of four guaranteed orders NASA will make under the Commercial Crew Transportation Capability (CCtCap) contracts. The Boeing Company of Houston received its first crew mission order in May. "It's really exciting to see SpaceX and Boein...
Fri, 20 Nov 2015 14:43:00 +0100
The latest satellite for the European Commission's Copernicus environmental programme has left France bound for the Plesetsk launch site in Russia and launch late next month. Carrying a suite of state-of-the-art instruments, Sentinel-3A is set to provide an unprecedented step forward in the Copernicus marine, land, atmosphere and climate change services. The satellite began its two-day journey from Thales Alenia Space in Cannes to Nice airport by lorry during the night. An Antonov aircraft...
Thu, 19 Nov 2015 14:00:00 +0100
Raytheon Company (NYSE: RTN) successfully completed three preliminary launch readiness events which are important milestones in preparing to launch the modernized Global Positioning System (GPS) system. The new system will benefit millions of people worldwide who rely on GPS for its positioning, navigation, and timing capabilities. The three exercise events, completed over the summer, demonstrated the maturity and readiness of Raytheon's cyber-hardened Launch and Checkout System (LCS) to sup...
Wed, 18 Nov 2015 12:00:00 +0100
ESO's VISTA survey telescope has spied a horde of previously hidden massive galaxies that existed when the Universe was in its infancy. By discovering and studying more of these galaxies than ever before, astronomers have, for the first time, found out exactly when such monster galaxies first appeared. Just counting the number of galaxies in a patch of sky provides a way to test astronomers' theories of galaxy formation and evolution. However, such a simple task becomes increasingly hard as a...
Wed, 18 Nov 2015 11:49:00 +0100
Through a contract signed today with the European Space Agency (ESA), Airbus Defence and Space continues to develop Eurostar Neo, its new generation of platforms for geostationary telecommunication satellites. Under phase C/D of the NEOSAT programme, this contract will lead to the development of the complete Eurostar Neo product line. The NEOSAT programme was initiated by ESA and the French space agency CNES through the Investments for the Future Programme (PIA) and continues today, with ...
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    Personal information
    Contact information
    Candidate Profile
     Date Submitted:04-08-2009
     Last Modified:05-08-2009 (07:25)
    Job information
     Current job:Post doc
     Employment Term:Temp/Contract
     Job location:Anywhere
     Date available:immediately
     Industry:Consulting/Engineering Services
     KeywordsMaterials science; synthesis; composite materials

    Last work


    2007-2008 Post-doctoral fellow of the University  of Montpellier (UM2), France, in the frame of CANAPE European project (Carbon Nanotubes for Applications in Electronics, Catalysis, Composites and Nano-Biology – Sixth Framework Program)





    2003-2006 Ph.D. Thesis in Chemistry, Materials Science;

    ·         Centre de Recherche sur la Matière Divisée (University of Orléans and CNRS, France)

    ·         Argonne National Laboratory (The University of Chicago and US Department of Energy, USA)


    2002      Post graduate degree in Polymer Chemistry; University of Bordeaux (UB1), France

    2001      Master’s degree in Chemistry; University of Bordeaux

    1999      Bachelor’s degree in Chemistry; University of Bordeaux

    1998      University degree in Sciences; University of Bordeaux

    1994      High School Diploma (Mathematics and Physics); Lycée Stendhal, Aiguillon, France

    1993      High School Diploma (Biology); Lycée Stendhal, Aiguillon



    January 2007-June 2008

    « Enhancement of physical properties of carbon nanotubes/polymers composite materials »

    -          Functionalization of carbon naotubes surface to create a chemical link between nanotubes and organic matrices (PEEK, epoxy resin).

    -          Study of mechanical, thermal and electrical properties of this composite material.

    Supervisor: Dr. Jean-Louis Bantignies (LCVN)

             Laboratory of Colloids, Glasses and Nanomaterials (LCVN), University of Montpellier



    January 2003-July 2006

    « Effects of confinement of silver chalcogenide and hydrogen inside mesoporous silica and carbon nanostructures »


    -          Synthesis and study of the structure of silver selenide nanoparticles prepared by microemulsion and inserted inside mesoporous silica. In particular X-ray diffraction is used to study the effects of confinement on solid-solid β-α phase transition.

    -          Study of H2 and D2 adsorption inside mesoporous silica and carbon nanostructures using neutron diffraction.

    Director: Pr. Marie-Louise Saboungi (CRMD)

    Research Center for Divided Matter (CRMD), University of Orleans

    Intense Pulsed Neutron Source (IPNS), ANL (May 2003-May 2005)



    January-July 2002

                    « Asymetric growth of polystyrene latex at surface silica beads »

    Synthesis of hybrid organic-inorganic particles by emulsion polymerization of styrene at the surface of silica beads from 100 nm to 1 μm.

    Supervisors: Dr. Etienne Duguet and Marie-Hélène Delville

    Institute of Condensed Matter Chemistry of Bordeaux (ICMCB), CNRS



    November 2000-July 2001

                                                    « Characterization of macromolecules by liquid chromatography at exclusion-adsorption transition point »

    New way of fractionation of functional (block-, random, grafted-) copolymers and other polymers architectures (star-like or ring-shaped polymers).

    Supervisors: Pr. Henri Cramail (LCPO) and Dr. Serge Laugier (ENSCPB)

    Laboratory of Organic Polymers Chemistry (LCPO), University of Bordeaux  

    The National Graduate School of Chemistry and Physics of Bordeaux (ENSCPB)



    April-June 2000                

    « Synthesis of cyclic phosphoesters and their ring-opening polymerization initiated by rare-earth isopropoxide »

    Copolymerization of cyclic phosphoesters and ε-caprolactone to obtain materials for biomedical applications such as controlled release of drugs.

    Supervisor: Michèle Schappacher

    Laboratory of Organic Polymers Chemistry (LCPO), University of Bordeaux




    Materials Synthesis :

    • Functionalization of nanotubes in solution
    • sol-gel synthesis (Stöber silica and mesoporous silica, SBA-15 and MCM-41)
    • microemulsion (silver selenide nanoparticles)
    • high vacuum (polyphosphoesters)
    • emulsion polymerization (polystyrene)
    • radical polymerization


    Laboratory characterization techniques:

    • X-rays diffraction
    • FT Raman
    • UV-visible, FTIR
    • size exclusion chromatography (SEC)
    • differential scanning calorimetry (DSC)
    • HPLC
    • transmission and scanning electron microscopy
    • NMR (1H, 13C, 31P)



    Large Instruments Techniques (total allocated days: 49):

    Intense Pulsed Neutron Source (ANL, Argonne, USA) 

    • Quasielastic neutron scattering (QENS)

    “QENS study of hydrogen adsorption and dynamics in mesoporous silica.” V. Leon, Y. Ren, M.L. Saboungi, September 13-20, 2003

    • Inelastic neutron scattering (QENS)

    “QENS study of hydrogen storage inside carbon peapods.” V. Leon, C.K. Loong, A.I. Kolesnikov, April 1-5, 2004

    “QENS study of hydrogen storage inside carbon nanotubes.” V. Leon, C.K. Loong, A.I. Kolesnikov, April 26-29, 2004

    “QENS study of hydrogen storage inside carbon nanohorns.” V. Leon, C.K. Loong, A.I. Kolesnikov, May 17-24, 2004

    • Small angle neutron scattering (SAND)

    “SANS study of silver selenide inside mesoporous silica.” V.Leon, C.K. Loong, P. Thiyagarajan, 2003


    Advanced Photon Source (ANL, Argonne, USA) 

    • High-energy X-ray diffraction (11-ID-C)

    “High energy x-rays study of the confinement of silver chalcogenide inside mesoporous silica.” V. Leon, Y. Ren, M.L. Saboungi, March 30-April 7, 2005


    Institut Laue-Langevin (ILL, Grenoble, France) 

    • Inelastic neutron scattering (IN4)

    “Study of hydrogen and deuterium dynamics in mesoporous silica.” F.J. Bermejo, M. Gonzalez, C. Mondelli, V. Leon, M.L. Saboungi, July 29-August 1, 2005

    • Inelastic neutron scattering (IN6)

    “Nature of the bound states of hydrogen adsorbed on carbon nanohorns.” F.J. Bermejo, M. Gonzalez, C. Mondelli, V. Leon, M.L. Saboungi, September 26-october 1, 2007

    • Powder diffractometer (D1B)

    Structure and dynamics of hydrogen bound to carbon nanoscrolls.” F.J. Bermejo, U.I. Bustinduy, C. Cabrillo, R. Fernandez-Perea, F. Fernandez-Alonso, M. Jimenez-Ruiz, V. Leon, C. Mondelli,  M.L. Saboungi, June 4-7, 2008

    Publications - Conferences - Posters - School


    Published articles (peer reviewed):

    • V. Leon, Y. Ren and M.-L. Saboungi

    “Effect of nanoscale confinement on β-α phase transition in Ag2Se.”

    Journal of Applied Physics (2008) 103, 016105


    • F. Fernandez-Alonso, F. J. Bermejo, C. Cabrillo, R. O. Loutfy, V. Leon, and M. L. Saboungi

    “Nature of the bound states of molecular hydrogen in carbon nanohorns.”

    Physical Review Letters (2007) 98, 215503


    • C. Mondelli, M. A. González, F. Albergamo, C. Carbajo, M. J. Torralvo, E. Enciso, F. J. Bermejo, R. Fernández-Perea, C. Cabrillo, V. Leon, and  M. L. Saboungi

    “Collective excitations in liquid D2 confined within the mesoscopic pores of a MCM-41 molecular sieve.”

    Physical Review B (2006) 73, 094206



    Other publication (peer reviewed):

    • F. Fernandez-Alonso, F.J. Bermejo, R.O. Loutfy, V. Leon, and M.L. Saboungi

    “Stockage d’hydrogène: comment l’hydrogène se lie aux nanocornets de carbone. in French

    Les Techniques de l’Ingénieur (2008), Nanotechnologies base, NM5150



    Article to be published (peer reviewed):

    • V. Leon, R. Parret, and J.-L. Bantignies

    Investigation of structural and physical properties of epoxy/functionalized carbon nanotubes composites.”

    Submitted to Chemistry of Materials (2009)



    International Conferences:

    • V. Leon

    Mini Symposium “Aplicaciones de los Nanotubos de Carbono”, 50th anniversary of Centro de Física and IVIC

    January 27, 2009, Caracas, Venezuela

    “Investigations of structural and physical properties of functionalized carbon nanotubes composite material.”


    • V. Leon, R. Parret, M.R. Babaa, J.L. Bantignies

    Ninth International Conference on the Science and Application of Nanotubes (NT08)

    June 29-July 4, 2008, Montpellier, France

    Synthesis and structural properties of polymer/carbon nanotube composite materials obtained by functionalization of nanotubes surface.


    • V. Leon, R. Parret, M.R. Babaa, and J.L. Bantignies

    International Meeting on the Chemistry of Nanotubes (ChemOnTubes 2008)

    April 6-9, 2008, Zaragoza, Spain

    “Carbon nanotubes functionalization with sulfonated poly(ether ether ketone) chains.”


    • V. Leon, R. Parret, M.R. Babaa, and  J.L. Bantignies

    International Winterschool on Electronic Properties of Novel Materials (IWEPNM 2008)

    March 1-8, 2008, Kirchberg-in-Tirol, Austria

    Sulfonated poly(ether ether ketone) chains grafted on carbon nanotubes surface.”


    • F. Fernandez-Alonso*, F.J. Bermejo, C. Cabrillo, R.O. Loutfy, V. Leon, M.L. Saboungi

    4th European Conference on Neutron Scattering (ECNS 2007)

    June 25-29, 2007, Lund, Sweden

    “Molecular hydrogen in carbon nanohorns: insights from high-resolution neutron scattering.”


    • V. Leon, Y. Ren, M.-L. Saboungi

    5èmes Journées SOLEIL Région Centre (JSRC-5)

    March 13-14, 2006, Orléans, France

    Effect of confinement on β-α phase transition of Ag2Se in mesoporous silica.


    • A.I. Kolesnikov*, C.-K. Loong, V. Leon, N.R. de Souza, A.P. Moravsky, R.O . Loutfy

    19th North American Catalysis Society Meeting (19th NAM)

    May 22-27, 2005, Philadelphia, USA

    Neutron scattering studies of hydrogenation/dehydrogenation of nanocarbon materials.


    • V. Leon, Y. Ren, M.-L. Saboungi

    MRS Fall Meeting 2004

    November 29-December 4, 2004, Boston, USA

    X-ray study of the confinement of silver chalcogenide inside mesoporous silica.


    • A. Goldbach*, V. Leon, M.-L. Saboungi

    International Symposium on Materials Processing for Nanostructured Devices (MPND-2003)

    May 4-7, 2003, Nouan-le-Fuzelier, France

    Confinement of narrow band gap semiconductors.




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