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Luís F. Simões

When Astronomy Met Computer Science | Cosmology | DISCOVER Magazine - 1 views

discovermagazine.com/...astronomy-met-computer-science

astronomy INF data mining

shared by Luís F. Simões on 25 Jul 11 - No Cached
LeopoldS liked it
  • “That’s impossible!” he told Borne. “Don’t you realize that the entire data set NASA has collected over the past 45 years is one terabyte?”
  • The LSST, producing 30 terabytes of data nightly, will become the centerpiece of what some experts have dubbed the age of peta­scale astronomy—that’s 1015 bits (what Borne jokingly calls “a tonabytes”).
  • A major sky survey might detect millions or even billions of objects, and for each object we might measure thousands of attributes in a thousand dimensions. You can get a data-mining package off the shelf, but if you want to deal with a billion data vectors in a thousand dimensions, you’re out of luck even if you own the world’s biggest supercomputer. The challenge is to develop a new scientific methodology for the 21st century.”
  • LeopoldS on 25 Jul 11
     
    Francesco please look at this and get back wrt to the /. question .... thanks
santecarloni

Revealing the Universe: the Hubble Extreme Deep Field | Bad Astronomy | Discover Magazine - 1 views

blogs.discovermagazine.com/...-the-hubble-extreme-deep-field

universe astronomy science space

shared by santecarloni on 26 Sep 12 - No Cached
  • santecarloni on 26 Sep 12
     
    Astronomers using the Hubble Space Telescope have created the deepest multi-color* image of the Universe ever taken: the Hubble Extreme Deep Field, a mind-blowing glimpse into the vast stretches of our cosmos.
santecarloni

Amateur planet hunters find a world with a four star rating | Bad Astronomy | Discover ... - 4 views

blogs.discovermagazine.com/...-world-with-a-four-star-rating

astronomy science space

shared by santecarloni on 16 Oct 12 - No Cached
LeopoldS liked it
  • LeopoldS on 17 Oct 12
     
    One more reason why we should be much more open about all these EO data we have .... The two citizen scientists, Kian Jek and Robert Gagliano, are listed as authors on the scientific paper recently published. I love this: the digital nature of these data make it far, far easier to analyze the science than it was in the past, and also easier to get the data out to people. Because of this, we have an explosive growth in these kinds of projects. Planet Hunters is great, but then so is Galaxy Zoo, Moon Mappers, Ice Hunters, and so many others. You can find several of these collected at the CosmoQuest website.
  • Marcus Maertens on 18 Oct 12
     
    Wiktor is also collecting these science games in the ACT-wiki. You should have a look at: http://sophia.estec.esa.int/actwiki/index.php/On-line_Games_4_Science
santecarloni

Astronomy Picture of the Day - 7 views

antwrp.gsfc.nasa.gov/...astropix.html

astronomy photos science space

shared by santecarloni on 15 Dec 10 - Cached
  • santecarloni on 15 Dec 10
     
    wow...
santecarloni

Google Reader (1000+) - 2 views

www.youtube.com/watch

galaxy space

shared by santecarloni on 27 Oct 11 - No Cached
  • santecarloni on 27 Oct 11
     
    For the astronomy lovers...visually very impressive...
Alexander Wittig

Scientists discover hidden galaxies behind the Milky Way - 1 views

www.icrar.org/...hidden-galaxies

astronomy

shared by Alexander Wittig on 11 Feb 16 - No Cached
  • Alexander Wittig on 11 Feb 16
     
    Hundreds of hidden nearby galaxies have been studied for the first time, shedding light on a mysterious gravitational anomaly dubbed the Great Attractor. Despite being just 250 million light years from Earth-very close in astronomical terms-the new galaxies had been hidden from view until now by our own galaxy, the Milky Way. Using CSIRO's Parkes radio telescope equipped with an innovative receiver, an international team of scientists were able to see through the stars and dust of the Milky Way, into a previously unexplored region of space. The discovery may help to explain the Great Attractor region, which appears to be drawing the Milky Way and hundreds of thousands of other galaxies towards it with a gravitational force equivalent to a million billion Suns. Lead author Professor Lister Staveley-Smith, from The University of Western Australia node of the International Centre for Radio Astronomy Research (ICRAR), said the team found 883 galaxies, a third of which had never been seen before. "The Milky Way is very beautiful of course and it's very interesting to study our own galaxy but it completely blocks out the view of the more distant galaxies behind it," he said. Professor Staveley-Smith said scientists have been trying to get to the bottom of the mysterious Great Attractor since major deviations from universal expansion were first discovered in the 1970s and 1980s. "We don't actually understand what's causing this gravitational acceleration on the Milky Way or where it's coming from," he said. "We know that in this region there are a few very large collections of galaxies we call clusters or superclusters, and our whole Milky Way is moving towards them at more than two million kilometres per hour." The research identified several new structures that could help to explain the movement of the Milky Way, including three galaxy concentrations (named NW1, NW2 and NW3) and two new clusters (named CW1 and CW2).
Luís F. Simões

ARKYD: A Space Telescope for Everyone, by Planetary Resources - Kickstarter - 0 views

www.kickstarter.com/...space-telescope-for-everyone-0

astronomy crowdfunding

shared by Luís F. Simões on 29 May 13 - No Cached
  • Luís F. Simões on 29 May 13
     
    space-related kickstarters moving from cubesats to space telescopes. This funding campaign was launched today, and will last for 32 days. They are asking for 1M USD.
  • johannessimon81 on 30 May 13
     
    "Since the formation of Planetary Resources, our primary goal has been to build technology enabling us to prospect and mine asteroids. We've spent the last year making great leaps in the development of these technologies." - Damn we need to get in touch with these people..!
LeopoldS

On the Habitable Zones of Circumbinary Planetary Systems - Abstract - The Astrophysical... - 2 views

iopscience.iop.org/...7

PHY astronomy

shared by LeopoldS on 13 Jan 13 - No Cached
  • LeopoldS on 13 Jan 13
     
    remember our recent discussion about this?
Joris _

ATV docks with the ISS | Bad Astronomy | Discover Magazine - 4 views

blogs.discovermagazine.com/...atv-docks-with-the-iss

ESA MAD

shared by Joris _ on 12 Apr 12 - No Cached
LeopoldS and Ma Ru liked it
  • Joris _ on 12 Apr 12
     
    On March 28, ATV-3, named Edoardo Amaldi, docked with the ISS. Astronauts on the station took this unbelievable picture of it as it approached
  • Ma Ru on 12 Apr 12
     
    More pics here: http://www.flickr.com/photos/europeanspaceagency/ ATV docking is a bit further down the photostream.
Dario Izzo

Check your country impact on science!!! - 8 views

www.sciencegateway.org/...index.html

journal academic impact Science Ranking research

shared by Dario Izzo on 25 Jan 12 - Cached
  • Dario Izzo on 25 Jan 12
     
    Did you know that papers in space science are among the most quoted? Check how your country is doing .... you will be surprised :)
  • ...7 more comments...
  • dejanpetkow on 26 Jan 12
     
    In terms of country based quotations ("Most scited countries") I cannot access space science, only Geosciences, Immunology, Material Science, and Psychiatry & Psychology. But when I first saw the list of countries at the left under "Impact in Science" I saw Argentinia was on top, and USA was on last position. Yes, I was surprised, until I realised that is was just an alphabetical order. Did you see the same list?
  • Nicholas Lan on 26 Jan 12
     
    scotland's a separate country. must be preparing for independence already. and it's highest percentage is for space science. crazy
  • Dario Izzo on 26 Jan 12
     
    Dajan, you need to click on the country you are interested in ....
  • dejanpetkow on 26 Jan 12
     
    Nooo, can't be THAT simple.
  • LeopoldS on 26 Jan 12
     
    data a bit old .... newer data (but less well presented) at http://sciencewatch.com/ there you can also read: "The 20th century was largely dominated by the US as a major powerhouse of scientific research and innovation, with 40% of the papers indexed in the Web of Science fielded by US scientists in the 1990s. By 2009, that figure was down to 29%. The US now struggles to keep pace with increased output from Europe and Asia."
  • LeopoldS on 26 Jan 12
     
    hottest space science paper in January 2012: Field: Space Science Article Title: Herschel Space Observatory An ESA facility for far-infrared and submillimetre astronomy Authors: Pilbratt, GL;Riedinger, JR;Passvogel, T;Crone, G;Doyle, D;Gageur, U;Heras, AM;Jewell, C;Metcalfe, L;Ott, S;Schmidt, M Journal: ASTRON ASTROPHYS, 518: art. no.-L1 JUL-AUG 2010 * ESTEC SRE SA, ESA Res & Sci Support Dept, Keplerlaan 1, NL-2201 AZ Noordwijk, Netherlands. * ESTEC SRE SA, ESA Res & Sci Support Dept, NL-2201 AZ Noordwijk, Netherlands. * ESTEC SRE OA, ESA Sci Operat Dept, NL-2201 AZ Noordwijk, Netherlands. * ESTEC SRE P, ESA Sci Operat Dept, NL-2201 AZ Noordwijk, Netherlands. * ESOC OPS OAH, ESA Mission Operat Dept, D-64293 Darmstadt, Germany. * ESAC SRE OA, ESA Sci Operat Dept, Madrid 28691, Spain.
  • Ma Ru on 30 Jan 12
     
    Interestingly, Space Science is the only field in which my country has positive "Impact vs. world" value (even more interestingly as we don't even have a proper national space agency)...
  • LeopoldS on 30 Jan 12
     
    this might also be an indication / point to an issue with their data concerning space science publications ... quite surprising indeed that all Europeans are doing so well in this field
  • jmlloren on 01 Feb 12
     
    Something should be wrong, for Spain I can read: Economics & Business 4.54 -28 Only minus 28!
Alexander Wittig

Picture This: NVIDIA GPUs Sort Through Tens of Millions of Flickr Photos - 2 views

blogs.nvidia.com/...flickr

AI

shared by Alexander Wittig on 21 Jul 15 - No Cached
LeopoldS liked it
  • Alexander Wittig on 21 Jul 15
     
    Strange and exotic cityscapes. Desolate wilderness areas. Dogs that look like wookies. Flickr, one of the world's largest photo sharing services, sees it all. And, now, Flickr's image recognition technology can categorize more than 11 billion photos like these. And it does it automatically. It's called "Magic View." Magical deep learning! Buzzword attack!
  • ...4 more comments...
  • LeopoldS on 21 Jul 15
     
    and here comes my standard question: how can we use this for space? fast detection of natural disasters onboard?
  • Alexander Wittig on 22 Jul 15
     
    Even on ground. You could for example teach it what nuclear reactors or missiles or other weapons you don't want look like on satellite pictures and automatically scan the world for them (basically replacing intelligence analysts).
  • Alexander Wittig on 23 Jul 15
     
    In fact, I think this could make a nice ACT project: counting seals from satellite imagery is an actual (and quite recent) thing: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0092613 In this publication they did it manually from a GeoEye 1 b/w image, which sounds quite tedious. Maybe one can train one of those image recognition algorithms to do it automatically. Or maybe it's a bit easier to count larger things, like elephants (also a thing).
  • jcunha on 23 Jul 15
     
    In HiPEAC (High Performance, embedded architecture and computation) conference I attended in the beginning of this year there was a big trend of CUDA GPU vs FPGA for hardware accelerated image processing. Most of it orbitting around discussing who was faster and cheaper with people from NVIDIA in one side and people from Xilinx and Intel in the other. I remember of talking with an IBM scientist working on hardware accelerated data processing working together with the Radio telescope institute in Netherlands about the solution where they working on (GPU CUDA). I gathered that NVIDIA GPU suits best in applications that somehow do not rely in hardware, having the advantage of being programmed in a 'easy' way accessible to a scientist. FPGA's are highly reliable components with the advantage of being available in radhard versions, but requiring specific knowledge of physical circuit design and tailored 'harsh' programming languages. I don't know what is the level of rad hardness in NVIDIA's GPUs... Therefore FPGAs are indeed the standard choice for image processing in space missions (a talk with the microelectronics department guys could expand on this), whereas GPUs are currently used in some ground based (radio astronomy or other types of telescopes). I think that on for a specific purpose as the one you mentioned, this FPGA vs GPU should be assessed first before going further.
  • Paul N on 29 Jul 15
     
    You're forgetting power usage. GPUs need 1000 hamster wheels worth of power while FPGAs can run on a potato. Since space applications are highly power limited, putting any kind of GPU monster in orbit or on a rover is failed idea from the start. Also in FPGAs if a gate burns out from radiation you can just reprogram around it. Looking for seals offline in high res images is indeed definitely a GPU task.... for now.
  • jcunha on 31 Jul 15
     
    The discussion of how to make FPGA hardware acceleration solutions easier to use for the 'layman' is starting btw http://reconfigurablecomputing4themasses.net/.
Juxi Leitner

Artificial Astronomer Analyzes Galaxies Almost As Well As We Do | Singularity Hub - 1 views

singularityhub.com/...laxies-almost-as-well-as-we-do

ai astronomy galaxy zoo

shared by Juxi Leitner on 10 Jun 10 - Cached
  • program to agree with human analysis at an impressive rate of more than 90%
LeopoldS

NASA - NASA's Fermi Telescope Finds Giant Structure in our Galaxy - 5 views

www.nasa.gov/...new-structure.html

space phy astronomy

shared by LeopoldS on 15 Nov 10 - No Cached
  • LeopoldS on 15 Nov 10
     
    wow ....
  • ...1 more comment...
  • Ma Ru on 15 Nov 10
     
    I guess that's the "exceptional object in our cosmic neighbourhood"...
  • pacome delva on 15 Nov 10
     
    impressive! I'm sure it's connected to the black hole, at some point it must have been active. It shows how it's important to put all observations public !
  • LeopoldS on 16 Nov 10
     
    this is what they speculate ... the original image looks though much less impressive ...
LeopoldS

Phys. Rev. Lett. 105, 211303 (2010): Model for Gravity at Large Distances - 2 views

prl.aps.org/...e211303

phy science astronomy pioneer anomaly

shared by LeopoldS on 18 Nov 10 - No Cached
  • LeopoldS on 18 Nov 10
     
    Sante have a look at this ... Daniel is the TU researcher who did the study I was sending you a few years ago with Luzi - very nice and smart guy .... Luzi: now you will have difficulties in shooting :-)
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