position:principal investigator

  • MU69 appears as a bi-lobed baby comet in latest New Horizons images | The Planetary Society
    http://www.planetary.org/blogs/emily-lakdawalla/2019/mu69-baby-comet-contact-binary.html

    This is a textbook example of a contact binary. Binary means two objects, of course, and contact means that they’re in contact with each other. Separated binaries are very common in the solar system and especially common in the Kuiper belt. But how can a contact binary form? Is it even plausible for two mutually orbiting bodies to somehow come together so gently and just stick to each other while preserving their originally round shape over billions of years?

    #UltimaThule

  • Google’s true origin partly lies in CIA and NSA research grants for mass surveillance — Quartz
    https://qz.com/1145669/googles-true-origin-partly-lies-in-cia-and-nsa-research-grants-for-mass-surveill
    https://qzprod.files.wordpress.com/2017/08/rts18wdq-e1502123358903.jpg?quality=80&strip=all&w=1600

    Le titre est un peu « clickbait », mais les infos sont intéressantes, quoique parfois elliptiques.

    C’est écrit par : Jeff Nesbit, Former director of legislative and public affairs, National Science Foundation
    Quelqu’un qui doit savoir de quoi il cause.

    In the mid 1990s, the intelligence community in America began to realize that they had an opportunity. The supercomputing community was just beginning to migrate from university settings into the private sector, led by investments from a place that would come to be known as Silicon Valley.

    The intelligence community wanted to shape Silicon Valley’s efforts at their inception so they would be useful for homeland security purposes. A digital revolution was underway: one that would transform the world of data gathering and how we make sense of massive amounts of information. The intelligence community wanted to shape Silicon Valley’s supercomputing efforts at their inception so they would be useful for both military and homeland security purposes. Could this supercomputing network, which would become capable of storing terabytes of information, make intelligent sense of the digital trail that human beings leave behind?

    Intelligence-gathering may have been their world, but the Central Intelligence Agency (CIA) and the National Security Agency (NSA) had come to realize that their future was likely to be profoundly shaped outside the government. It was at a time when military and intelligence budgets within the Clinton administration were in jeopardy, and the private sector had vast resources at their disposal. If the intelligence community wanted to conduct mass surveillance for national security purposes, it would require cooperation between the government and the emerging supercomputing companies.

    Silicon Valley was no different. By the mid 1990s, the intelligence community was seeding funding to the most promising supercomputing efforts across academia, guiding the creation of efforts to make massive amounts of information useful for both the private sector as well as the intelligence community.

    They funded these computer scientists through an unclassified, highly compartmentalized program that was managed for the CIA and the NSA by large military and intelligence contractors. It was called the Massive Digital Data Systems (MDDS) project.
    The Massive Digital Data Systems (MDDS) project

    MDDS was introduced to several dozen leading computer scientists at Stanford, CalTech, MIT, Carnegie Mellon, Harvard, and others in a white paper that described what the CIA, NSA, DARPA, and other agencies hoped to achieve. The research would largely be funded and managed by unclassified science agencies like NSF, which would allow the architecture to be scaled up in the private sector if it managed to achieve what the intelligence community hoped for.

    “Not only are activities becoming more complex, but changing demands require that the IC [Intelligence Community] process different types as well as larger volumes of data,” the intelligence community said in its 1993 MDDS white paper. “Consequently, the IC is taking a proactive role in stimulating research in the efficient management of massive databases and ensuring that IC requirements can be incorporated or adapted into commercial products. Because the challenges are not unique to any one agency, the Community Management Staff (CMS) has commissioned a Massive Digital Data Systems [MDDS] Working Group to address the needs and to identify and evaluate possible solutions.”

    In 1995, one of the first and most promising MDDS grants went to a computer-science research team at Stanford University with a decade-long history of working with NSF and DARPA grants. The primary objective of this grant was “query optimization of very complex queries that are described using the ‘query flocks’ approach.” A second grant—the DARPA-NSF grant most closely associated with Google’s origin—was part of a coordinated effort to build a massive digital library using the internet as its backbone. Both grants funded research by two graduate students who were making rapid advances in web-page ranking, as well as tracking (and making sense of) user queries: future Google cofounders Sergey Brin and Larry Page.

    The research by Brin and Page under these grants became the heart of Google: people using search functions to find precisely what they wanted inside a very large data set. The intelligence community, however, saw a slightly different benefit in their research: Could the network be organized so efficiently that individual users could be uniquely identified and tracked?

    The grants allowed Brin and Page to do their work and contributed to their breakthroughs in web-page ranking and tracking user queries. Brin didn’t work for the intelligence community—or for anyone else. Google had not yet been incorporated. He was just a Stanford researcher taking advantage of the grant provided by the NSA and CIA through the unclassified MDDS program.
    Left out of Google’s story

    The MDDS research effort has never been part of Google’s origin story, even though the principal investigator for the MDDS grant specifically named Google as directly resulting from their research: “Its core technology, which allows it to find pages far more accurately than other search engines, was partially supported by this grant,” he wrote. In a published research paper that includes some of Brin’s pivotal work, the authors also reference the NSF grant that was created by the MDDS program.

    Instead, every Google creation story only mentions just one federal grant: the NSF/DARPA “digital libraries” grant, which was designed to allow Stanford researchers to search the entire World Wide Web stored on the university’s servers at the time. “The development of the Google algorithms was carried on a variety of computers, mainly provided by the NSF-DARPA-NASA-funded Digital Library project at Stanford,” Stanford’s Infolab says of its origin, for example. NSF likewise only references the digital libraries grant, not the MDDS grant as well, in its own history of Google’s origin. In the famous research paper, “The Anatomy of a Large-Scale Hypertextual Web Search Engine,” which describes the creation of Google, Brin and Page thanked the NSF and DARPA for its digital library grant to Stanford. But the grant from the intelligence community’s MDDS program—specifically designed for the breakthrough that Google was built upon—has faded into obscurity.

    Google has said in the past that it was not funded or created by the CIA. For instance, when stories circulated in 2006 that Google had received funding from the intelligence community for years to assist in counter-terrorism efforts, the company told Wired magazine founder John Battelle, “The statements related to Google are completely untrue.”

    Did the CIA directly fund the work of Brin and Page, and therefore create Google? No. But were Brin and Page researching precisely what the NSA, the CIA, and the intelligence community hoped for, assisted by their grants? Absolutely.

    In this way, the collaboration between the intelligence community and big, commercial science and tech companies has been wildly successful. When national security agencies need to identify and track people and groups, they know where to turn – and do so frequently. That was the goal in the beginning. It has succeeded perhaps more than anyone could have imagined at the time.

  • The cometary zoo
    http://blogs.esa.int/rosetta/2016/09/29/the-cometary-zoo

    The ROSINA instrument on Rosetta has been “sniffing” the environment of Comet 67P/Churyumov-Gerasimenko for the past couple of years, obtaining unprecedented measurements of the gases found in a comet’s atmosphere. Besides the main component – water vapour – ROSINA detected a wide variety of chemical species, from simple atoms to increasingly complex molecules, including some ingredients that were crucial for the origin of life on Earth. In a humorous take on this “cometary zoo”, Kathrin Altwegg, ROSINA principal investigator from University of Bern and an enthusiast of animals, tells us more about the variety of bizarre “creatures” they’ve found at the comet. Let’s start from the volatile species, our beautiful butterflies, including CO, CO2, nitrogen, and the unexpected oxygen. Then, we (...)

  • Living with a comet: an #osiris team perspective
    http://blogs.esa.int/rosetta/2016/09/29/living-with-a-comet-an-osiris-team-perspective

     OSIRIS, #Rosetta’s Optical, Spectroscopic and Infrared Remote Imaging System, has been our all-seeing eye on #Comet_67P/Churyumov-Gerasimenko, capturing nearly 68,000 high-resolution #Images of its nucleus and coma from all angles for 924 days. Here the OSIRIS team share some insights beyond the beauty of the images their camera returns. With inputs from Holger Sierks, OSIRIS principal investigator. OSIRIS has always had a big team: there are 97 team members today, and more than 300 people were involved – including industry partners – at the time the camera system was built. The instrument itself comprises two cameras – a wide- and narrow-angle camera, three electronics boxes, eight harnesses, and 22 subsystems, which were provided by nine European research institutes, plus industry, and (...)

    #Instruments #Science ##LivingWithAComet #instruments #rosetta #science

  • Living with a comet: an Alice team perspective
    http://blogs.esa.int/rosetta/2016/09/28/living-with-a-comet-an-alice-team-perspective

    Rosetta’s ‘Alice’ instrument – which is the only #Rosetta instrument that isn’t an acronym, it is simply a name that the instrument’s principal investigator, Alan Stern, likes – was the first in a line of ultraviolet spectrographs that have also flown on NASA’s Lunar Reconnaissance orbiter, New Horizons and JUNO. It has also been with some Alice team members for their entire lives. With inputs from Alan Stern, Joel Parker, Mike A’Hearn, and John Noonan. John Noonan is the youngest Alice team member – he was just 10 when #rosetta launched. “Rosetta really got started in the same year I was born, and being able to work on a mission that is the same age as me has been incredibly humbling,” he says. “Working on Rosetta while attending college showed me exactly what I would be getting myself into by (...)

    #Comet_67P #Comets #CometWatch #Instruments #Science ##LivingWithAComet #instruments #science

  • NASA’s #Juno Successfully Completes Jupiter Flyby | NASA
    http://www.nasa.gov/feature/jpl/nasas-juno-successfully-completes-jupiter-flyby

    NASA’s Juno mission successfully executed its first of 36 orbital flybys of Jupiter today. The time of closest approach with the gas-giant world was 6:44 a.m. PDT (9:44 a.m. EDT, 13:44 UTC) when Juno passed about 2,600 miles (4,200 kilometers) above Jupiter’s swirling clouds. At the time, Juno was traveling at 130,000 mph (208,000 kilometers per hour) with respect to the planet. This flyby was the closest Juno will get to Jupiter during its prime mission. 
    […]
    We are getting some intriguing early data returns as we speak,” said Scott Bolton, principal investigator of Juno from the Southwest Research Institute in San Antonio. “It will take days for all the science data collected during the flyby to be downlinked and even more to begin to comprehend what Juno and Jupiter are trying to tell us.

    While results from the spacecraft’s suite of instruments will be released down the road, a handful of images from Juno’s visible light imager — JunoCam — are expected to be released the next couple of weeks. Those images will include the highest-resolution views of the Jovian atmosphere and the first glimpse of Jupiter’s north and south poles.

    We are in an orbit nobody has ever been in before, and these images give us a whole new perspective on this gas-giant world,” said Bolton.

    À venir, donc…

  • Krypton and xenon added to #Rosetta’s noble gas inventory
    http://blogs.esa.int/rosetta/2016/06/14/krypton-and-xenon-added-to-rosettas-noble-gas-inventory

    Rosetta has detected the noble gases krypton and xenon while flying close to #Comet_67P/Churyumov-Gerasimenko last month. The detections were made during dedicated orbits between 10 and 31 May, which took the spacecraft to within 10 km of the #comet’s surface, and sometimes as close as 5 km. The discovery was highlighted today by Kathrin Altwegg, Principal Investigator of the ROSINA instrument that made the detections, during a Royal Society meeting on ‘Cometary #Science after #rosetta ’ in London, UK. “We had sporadic hints of krypton while briefly flying at 12 km in early March, but the confirmation was only possible thanks to a longer period of observation during these close orbits,” she says. “Noble gases bound up inside the comet very easily escape into space through sublimation, so (...)

    #Comets #Instruments #instruments #science

  • First detection of molecular oxygen at a #comet
    http://blogs.esa.int/rosetta/2015/10/28/first-detection-of-molecular-oxygen-at-a-comet

    ESA’s #Rosetta spacecraft has made the first in situ detection of oxygen molecules outgassing from a comet, a surprising observation that suggests they were incorporated into the comet during its formation. This news story is mirrored from the main ESA web portal. #rosetta has been studying #Comet_67P/Churyumov–Gerasimenko for over a year and has detected an abundance of different gases pouring from its nucleus. #water vapour, carbon monoxide and carbon dioxide are the most prolific, with a rich array of other nitrogen-, sulphur- and carbon-bearing species, and even ‘noble gases’ also recorded. Oxygen is the third most abundant element in the Universe, but the simplest molecular version of the gas, O2, has proven surprisingly hard to track down, even in star-forming clouds, because it is highly (...)

    #Comets #Instruments #Science #coma #instruments #science

    • We weren’t really expecting to detect O2 at the comet – and in such high abundance – because it is so chemically reactive, so it was quite a surprise,” says Kathrin Altwegg of the University of Bern, and principal investigator of the Rosetta Orbiter Spectrometer for Ion and Neutral Analysis instrument, ROSINA.

      It’s also unanticipated because there aren’t very many examples of the detection of interstellar O2. And thus, even though it must have been incorporated into the comet during its formation, this is not so easily explained by current Solar System formation models.

  • GIADA investigates #comet’s “fluffy” dust grains
    http://blogs.esa.int/rosetta/2015/04/09/giada-investigates-comets-fluffy-dust-grains

    In a recent paper published in the Astrophysical Journal Letters, the GIADA team present their findings on the properties of dust particles from Comet 67P/Churyumov-Gerasimenko. This blog post has been prepared with inputs from lead author Marco Fulle, and GIADA principal investigator Alessandra Rotundi. GIADA, the Grain Impact Analyser and Dust Accumulator, is designed to capture dust particles in the coma of Comet 67P/Churyumov–Gerasimenko as #Rosetta flies around it. The characteristic properties of the dust grains can be used to infer the history of the material being ejected from comet. The latest study focuses on the dust particles collected between 1 August 2014 and 14 January 2015. The GIADA team find that the dust particles impacting on their detectors can be separated into two (...)

    #Science #rosetta #science

  • Watching the birth of a #comet magnetosphere
    http://blogs.esa.int/rosetta/2015/01/22/watching-the-birth-of-a-comet-magnetosphere

    Based on the press release of the Swedish Institute of Space Physics summarising the results of the #Rosetta Plasma Consortium’s (RPC) Ion Composition Analyser (ICA) that are presented in the journal #Science today, and on follow-up discussion with Hans Nilsson, RPC-ICA principal investigator. The RPC-ICA instrument onboard #rosetta has been watching the early stages of how a magnetosphere forms around #Comet_67P Churyumov-Gerasimenko as it moves closer to the Sun along its orbit and begins to interact with the solar wind. As the comet gets warmer, volatile substances, mainly water, evaporate from the surface and form an atmosphere around the comet. The Sun’s ultraviolet radiation and collisions with the solar wind ionizes some of the comet’s atmosphere. The newly formed ions are affected by (...)

    #Images #instruments #science

  • Drone Developers Consider Obstacles That Cannot Be Flown Around - NYTimes.com
    http://www.nytimes.com/2014/09/01/technology/as-drone-technology-advances-practical-obstacles-remain.html?emc=edit_th_20

    “One at a time you can make them work and keep them safe,” said Parimal H. Kopardekar, a NASA principal investigator who is developing and managing that program. “But when you have a number of them in operation in the same airspace, there is no infrastructure to support it.”

    Mais ça ne vous semble pas évident ? Pour tous ceux qui ne sont pas ingénieurs ou power geek, des drones partout, c’est embouteillage, crash et compagnie. Mais que ne ferait-on pour distribuer le savoir (les amazolivres) près de chez vous.

    Dr. Kopardekar said he expected the first commercial applications to be in agriculture and “asset monitoring,” like keeping an eye on crops or remote oil pipelines.

    Hum, ne faudrait-il pas mieux interdire l’épandage par le ciel en raison des dangers pour les populations. Ah bon, ce n’est pas le même marché que les drones, rien à voir, circulez...

  • CU-Boulder develop Innovative solar-powered toilet - Medical News Today
    http://www.medicalnewstoday.com/releases/274073.php

    Raffa

    CU-Boulder develop Innovative solar-powered toilet - Medical News Today - http://www.medicalnewstoday.com/release...

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    “The self-contained, waterless toilet, designed and built using a $777,000 grant from the Bill & Melinda Gates Foundation, has the capability of heating human waste to a high enough temperature to sterilize human waste and create biochar, a highly porous charcoal, said project principal investigator Karl Linden, professor of environmental engineering. The biochar has a one-two punch in that it can be used to both increase crop yields and sequester carbon dioxide, a greenhouse gas.” - (...)

  • Middle East loses freshwater equal to Dead Sea: NASA
    http://english.al-akhbar.com/content/middle-east-loses-freshwater-equal-dead-sea-nasa

    Almost 60 percent of the water loss is due to overdrawing groundwater from underground reservoirs faster than it could be replenished.

    The quantity lost is “enough water to meet the needs of tens of millions to more than a hundred million people in the region each year, depending on regional water use standards and availability," said Jay Famiglietti, principal investigator of the study and a hydrologist and professor at UC Irvine.

    “The Middle East just does not have that much water to begin with, and it’s a part of the world that will be experiencing less rainfall with climate change,” said Famiglietti, cited in the press release.

    “Those dry areas are getting dryer. The Middle East and the world’s other arid regions need to manage available water resources as best they can,” he said.

    Overall effects of less fresh water, beyond losing water necessary for survival, include the loss of vegetation and wildlife.

    The quality of the remaining freshwater is also threatened as saltwater migrates inland and contaminates the water supply.

  • “Dryboarding” and Three Unexplained Deaths at Guantánamo—By Scott Horton (Harper’s Magazine)
    http://harpers.org/archive/2011/11/hbc-90008305

    Did the three Guantánamo prisoners who died the evening of June 9, 2006, succumb to the misapplication of a controlled-suffocation technique called “dryboarding?” That prospect was raised last week in a report by Almerindo Ojeda, a linguistics professor who heads the University of California at Davis’s Center for the Study of Human Rights in the Americas, and who is the principal investigator for the center’s Guantánamo Testimonials Project. Earlier this year, after reading the “Guantánamo ‘Suicides,’” reports from Seton Hall Law School and the responses from the U.S. government and its defenders, Ojeda decided to undertake his own review of the case. After combing through published accounts and prisoner interviews, and meticulously reconstructing heavily censored government investigative materials, he emerged skeptical of the conclusion advanced by the Pentagon that the prisoners committed a perfectly synchronized triple suicide.

    ...

    A story in a second Carolina paper also caught Ojeda’s attention: a study by the Charleston Post & Courier’s Tony Bartelme of the struggle by naval commanders to get their “special” prisoner, Ali Saleh Al-Marri, who had been held for six years in the special housing unit of the Charleston brig, moved to Guantánamo.

    In early 2004, a group of interrogators dubbed “the contractors” spent day after day inside a special wing in the Navy’s brig in Hanahan. Their goal: Squeeze information out of a suspected terrorist from Qatar named Ali Saleh al-Marri…

    Al-Marri later told his attorneys that interrogators stuffed a sock in his mouth and taped his lips shut with duct tape. Al-Marri said he loosened the tape; the interrogators taped it more tightly. When he started to choke, the interrogators ripped off the tape. Al-Marri’s attorney in Charleston, Andy Savage, calls this technique “dryboarding.”