• Dawn Longs for Vesta’s Gravitational Pull

    Updated: 2011-05-27 21:56:11
    By Marc Rayman NASA’s Dawn spacecraft is less than two months away from getting into orbit around its first target, the giant asteroid Vesta. Each month, Marc Rayman, Dawn’s chief engineer, shares an update on the mission’s progress. Artist’s concept of the Dawn spacecraft using its ion propulsion system during the approach to Vesta. Image credit: NASA/JPL-Caltech Dear [...]

  • Infographic: A look at NASA’s new manned spacecraft

    Updated: 2011-05-25 17:13:39
    The folks at Space.com put together this infographic on the Muti-Purpose Crew Vehicle (MPCV), which NASA announced would be America’s next manned spacecraft after the retirement of the space shuttle fleet. It uses plans for the Orion Crew Vehicle program that in motion for the now-defunct endeavor to return to the moon. Source SPACE.com: [...]

  • Press Release: Planetary Society Has Role with OSIRIS-REx Mission

    Updated: 2011-05-25 08:00:00
    On the Planetary Society web site: Planetary Society Has Role with OSIRIS-REx Mission

  • Anders Sandberg on "how road inspectors and planetary defense are alike"

    Updated: 2011-05-19 06:00:00
    : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 19 May 2011 Anders Sandberg on how road inspectors and planetary defense are alike 2011 IAA Planetary Defense Conference keynote speaker Anders Sandberg's blog post on some observations about planetary defense . From his blog May 11, 2011 Probabilistic heroism : how road inspectors and planetary defense are alike I am attending the 2011 IAA Planetary Defense conference . A.C . Charania has a planetary defense blog with plenty of interesting . material Some ponderings amid the mission planning diagrams , impact-porosity discussions , asteroid statistics and nuclear : detonations Someone who saves a life is a hero

  • Article: Anders Sandberg on Progress in Mitigating Asteroid Impact Risks

    Updated: 2011-05-18 02:57:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 17 May 2011 Article : Anders Sandberg on Progress in Mitigating Asteroid Impact Risks Anders Sandberg , postdoctoral fellow at the Future of Humanity Institute of Oxford University , gave the keynote address at the May 9-12, 2011, Planetary Defense Conference in Bucharest , Romania sponsored by the International Academy of Astronautics . Here is his short microsummary of the : event Microsummary : we are on the right track The latest estimates of the NEO size distribution by Alan W Harris retain the shape of previous estimates , a power law with a pretty steep exponent and an unexplained dimple’ where there

  • Slice of History: Low Temperature Propellant Tests

    Updated: 2011-05-17 01:10:19
    By Julie Cooper Each month in “Slice of History” we’ll be featuring a historical photo from the JPL Archives. See more historical photos and explore the JPL Archives at https://beacon.jpl.nasa.gov/. Low Temperature Propellant Tests — Photograph Number 6-8 It was 1943 and JPL was at the beginning stages of rocket motor research and development.  Over the next decades, [...]

  • Video: Asteroid Deflection Research Center

    Updated: 2011-05-17 00:26:00
    Link: YouTube Video ("Asteroid Deflection Research Center")

  • Paper: "New applications of the H-reversal trajectory using solar sails"

    Updated: 2011-05-17 00:15:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 16 May 2011 Paper : New applications of the H-reversal trajectory using solar sails New applications of the H-reversal trajectory using solar sails Xiangyuan Zeng , Hexi Baoyin , Junfeng Li , Shengping Gong Submitted on 8 Mar 2011 : Abstract Advanced solar sailing has been an increasingly attractive propulsion system for highly non-Keplerian orbits . Three new applications of the orbital angular momentum reversal H-reversal trajectories using solar sails are presented in this paper : space observation , heliocentric orbit transfer , and collision orbits with asteroids . A theoretical proof for the existence of

  • Paper: "Planetary Defense and an Energy Infrastructure for Near Earth Space"

    Updated: 2011-05-17 00:10:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 16 May 2011 Paper : Planetary Defense and an Energy Infrastructure for Near Earth Space Planetary Defense and an Energy Infrastructure for Near Earth Space Fork , R . Burgess , L . Bergstue , G . Gaillard , R . Dept . of Electr . Comput . Eng . Univ . of Alabama Huntsville , Huntsville , AL , USA Proceedings of the IEEE Issue Date : March 2011 Volume : 99 Issue:3 On page(s 359 362 ISSN : 0018-9219 INSPEC Accession Number : 11821910 Digital Object Identifier : 10.1109 JPROC.2010.2096250 Date of Current Version : 17 February 2011 Sponsored by : IEEE : Abstract The White House Office of Science and Technology

  • SGAC Future of Planetary Defense Video Clips

    Updated: 2011-05-16 20:48:00
    : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 16 May 2011 SGAC Future of Planetary Defense Video Clips The Space Generation Advisory Council SGAC hosted a one day public event on the Future of Planetary Defense prior to the start of the 2nd IAA Planetary Defense conference These are selected videos from the . event Link : YouTube Video Future of Planetary Defense News Broadcast.AVI Link : YouTube Video Rusty-about-Dorin_480p.wmv Posted by A.C . Charania at 15:48 Older Post Home Note : Any opinions expressed on the blog are solely those of the author . The site is not sponsored by , nor does it represent the opinions of , any organization , corporation , or

  • Posts from Bruce Betts at The Planetary Society on 2nd IAA Planetary Defense Conference

    Updated: 2011-05-16 20:34:00
    Bruce Betts from The Planetary Society had two blog posts summarizing some days at the 2011 IAA Planetary Defense Conference:Bruce Betts reports from the Planetary Defense Conference in RomaniaMay. 9, 2011 | 15:00 PDT | 22:00 UTCDay 2: Planetary Defense conference in Bucharest, RomaniaMay. 10, 2011 | 15:59 PDT | 22:59 UTC

  • In The News: Could Martian Life Have Seeded the Earth?

    Updated: 2011-05-16 08:00:00
    On the Planetary Society web site: Could Martian Life Have Seeded the Earth?

  • Annoucement: 2013 IAA Planetary Defense Conference in Flagstaff, Arizona USA (April 15-19, 2013)

    Updated: 2011-05-13 04:42:15
    The 2013 International Academy of Astronautics (IAA) Planetary Defense Conference will be held from April 15-19, 2013 in Flagstaff, Arizona USA. This announcement was made at the 2011 IAA Planetary Defense Conference. The 2013 conference will be organized by the NASA NEO office with potential assistance from several academic institutions in Arizona. Flagstaff is close to Barringer Crater.

  • 2011 IAA Planetary Defense Conference: Day 4 Session 8

    Updated: 2011-05-12 12:15:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 12 May 2011 2011 IAA Planetary Defense Conference : Day 4 Session 8 Notes from Day 4 of 2011 IAA Planetary Defense Conference Follow twitter feed for more : information Day 4 Thursday 12 May 2011 Session 8 Legal , Policy , POlitical Framework for Planetary Defense A'Hearn Recommendations of the US NRC Study on NEOs asked by US Congress a few years ago about NEO Surveys and NEO Hazard Mitigation released Jan . 2010, reviewed 2006 NASA report 8 members from study at 2011 IAA PDC different types of personnel nukes , anti-nukes , robotic astronaut enthusiasts independent costs estimates obtained but not in time

  • News Article: NASA's Dawn Captures First Image of Nearing Asteroid [Vesta]

    Updated: 2011-05-12 08:27:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 12 May 2011 News Article : NASA's Dawn Captures First Image of Nearing Asteroid Vesta Image obtained by NASA's Dawn spacecraft of the giant asteroid Vesta in front of a background of stars . Image credit : NASA JPL-Caltech UCLA MPS DLR IDA This image , processed to show the true size of the giant asteroid Vesta , shows Vesta in front of a spectacular background of stars . Image credit : NASA JPL-Caltech UCLA MPS DLR IDA From the article . NASA's Dawn spacecraft has obtained its first image of the giant asteroid Vesta , which will help fine-tune navigation during its approach . Dawn is expected to achieve orbit

  • Video from NatGeoChannel Known Universe simulating the impact of a large asteroid

    Updated: 2011-05-12 08:25:00
    : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 12 May 2011 Video from NatGeoChannel Known Universe simulating the impact of a large asteroid L:ink : Video Posted by A.C . Charania at 03:26 Newer Post Older Post Home Note : Any opinions expressed on the blog are solely those of the author . The site is not sponsored by , nor does it represent the opinions of , any organization , corporation , or other . entity Document Library Google Docs Near Earth Object NEO Library General Documents Site Pages List of Mitigation Techniques Relevant Meetings Conferences NEO-Related Videos Spacecraft Missions to Asteroids and Comets Upcoming Meetings Conferences 2nd IAA

  • 2011 IAA Planetary Defense Conference: Day 4 Session 7

    Updated: 2011-05-12 07:58:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 12 May 2011 2011 IAA Planetary Defense Conference : Day 4 Session 7 Notes from Day 4 of 2011 IAA Planetary Defense Conference Follow twitter feed for more : information Day 4 Thursday 12 May 2011 Session 7 Student Session Charlotte Norlund NEOMiss : A New Earth Object Devision Support Tool Looking down at Earth , tool for investigation human vulnerability , uses the physical simulator used in NEOimpactor and NEOSim , previous work by Nick Bailey includes uncertainties in model and data , uses a Monte Carlo approach , vulnerability models made for five land impact hazards , multi-hazard simulator , only looking

  • 2011 IAA Planetary Defense Conference: Day 3 Session 6

    Updated: 2011-05-11 12:45:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 11 May 2011 2011 IAA Planetary Defense Conference : Day 3 Session 6 Notes from Day 3 of 2011 IAA Planetary Defense Conference Follow twitter feed for more : information Day 3 Wednesday 11 May 2011 Session 6 Mission Planning and Technologies Housen , K . Measuring the Momentum Transfer for Asteroid Deflection crater profile does not depend too much on void spaces impact disruption of spinning bodies rapid rotators will be more susceptible to disruption in a deflection mission Beta for sand at 2km s is 2, 10-20km s for beta=3 beta may depend strongly on porosity Golubov Influence of intermediate scale structure

  • Canadian NEOSSat at 2011 IAA Planetary Defense Conference

    Updated: 2011-05-11 12:31:00
    Canadian NEOSSat (Near Earth Object Surveillance Satellite) at 2011 IAA planetary defense conference

  • Fully funded PhD in asteroid deflection research at Univ of Surrey in UK

    Updated: 2011-05-11 12:29:00
    Fully funded PhD in asteroid deflection research at Univ of Surrey in UK

  • Aerospace Corp developing web based first order asteroid deflection / kinetic impactor design tool

    Updated: 2011-05-11 12:28:00

  • 2011 IAA Planetary Defense Conference: Day 3 Session 5

    Updated: 2011-05-11 08:29:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 11 May 2011 2011 IAA Planetary Defense Conference : Day 3 Session 5 Notes from Day 3 of 2011 IAA Planetary Defense Conference Follow twitter feed for more : information Day 3 Wednesday 11 May 2011 Session 5 Campaign Planning J-T Grundman AsteroidSQAUDS iSSB Synergistic NEO Deflection Campaign and Mitigation Effects Test Mission DLR reflection of past IAA 2009 conference white paper : campaign studies and focus on smaller objects looking at desires of various missions : heavy launcher development , fast mission scenarios , low space debris generation , include amateurs , small and smart interceptor design

  • NASA Ames Mission Design Center web based NEO browser tool to search pre computed trajectories

    Updated: 2011-05-11 08:27:00
    : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 11 May 2011 NASA Ames Mission Design Center web based NEO browser tool to search pre computed trajectories NASA Ames Mission Design Center is developing a web based NEO browser tool to search pre computed trajectories , database of 2 body ballistic trajectories for various mission configurations , could also filter by orbit condition codes , currently a NASA internal website but plans for public release Image : twitpic Posted by A.C . Charania at 03:27 Newer Post Older Post Home Note : Any opinions expressed on the blog are solely those of the author . The site is not sponsored by , nor does it represent the

  • Andrew Bacon from SGAC on Romanian TV talks about NEOs, during week of 2011 IAA Planetary Defense Conference

    Updated: 2011-05-11 07:52:00
    : , This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 11 May 2011 Andrew Bacon from SGAC on Romanian TV talks about NEOs , during week of 2011 IAA Planetary Defense Conference Amenintarea din cer va fi Pamantul distrus de un ASTEROID URIAS CrimeTime Live Show pe www.crimetime.ro Link : PrimeTime Posted by A.C . Charania at 02:52 Newer Post Older Post Home Note : Any opinions expressed on the blog are solely those of the author . The site is not sponsored by , nor does it represent the opinions of , any organization , corporation , or other . entity Document Library Google Docs Near Earth Object NEO Library General Documents Site Pages List of Mitigation

  • SGAC Public NEO Event prior to the 2011 IAA Planetary Defense Conference

    Updated: 2011-05-10 10:28:00
    The SGAC held a public event on NEOs prior to the 2011 IAA Planetary Defense Conference. Link: Video

  • 2011 IAA Planetary Defense Conference: Day 2 Session 3

    Updated: 2011-05-10 08:46:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 10 May 2011 2011 IAA Planetary Defense Conference : Day 2 Session 3 Notes from Day 2 of 2011 IAA Planetary Defense Conference Follow twitter feed for more : information Day 2 Tuesday 10 May 2011 Session 3 Potentially Hazardous Objects : Recent Progress P . Michel Cote d'Azur Observatory Physical Properties of NEOs that inform mitigation For all mitigation concepts needs size mass , rotational properties , and shape For kinetic impactor and nuclear : concepts needs surface and subsurface properties and internal structure if disruption is the goal Most NEOs are rubble piles very small asteroids have fast spin

  • 2011 IAA Planetary Defense Conference: Day 2 Session 4

    Updated: 2011-05-10 01:53:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 10 May 2011 2011 IAA Planetary Defense Conference : Day 2 Session 4 Notes from Day 2 of 2011 IAA Planetary Defense Conference Follow twitter feed for more : information Day 2 Tuesday 10 May 2011 Session 4 Impact Consequences and Education Longo , . G Consequences of the Tunguska Impact and their Interpretation more than 100 theories of Tunguska event many expeditions , 1991 Italian expedition to collect wood samples new map obtained of 1908 treefall from final traj . azimuths : single body trajectory or multiple bolide formed by two bodies New hypothesis : Tunguska bolide underwent fragmentation or was a

  • 2011 IAA Planetary Defense Conference: Day 1 Session 2

    Updated: 2011-05-09 12:42:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 09 May 2011 2011 IAA Planetary Defense Conference : Day 1 Session 2 Notes from Day 1 of 2011 IAA Planetary Defense Conference Follow twitter feed for more : information Day 1 Monday 09 May 2011 Session 2 Alan W . Harris Update of Estimated NEO Population and Current Survey Completion working at small company MoreData and consultant to NASA JPL NEO program office estimate population by re-detection ratio how many you find versus that you have already found bias correction from computer surveys , and extrapolation to smaller size results are getting boring since numbers not changing too much , estimate of

  • 2011 IAA Planetary Defense Conference: Day 1 Session 1

    Updated: 2011-05-09 08:08:00
    : : This area will cover relevant news of the threat to the planet from Near Earth Objects NEOs including concepts and designs for mitigation . All opinions are those of the . author 09 May 2011 2011 IAA Planetary Defense Conference : Day 1 Selected Notes Notes from Day 1 of 2011 IAA Planetary Defense Conference Follow twitter feed for more information : Day 1 Monday 09 May 2011 Misc introductory remarks by various Romanian dignitaries , including political and scientific representatives IAA representative IAA had Planetary Defense report by Ivan Bekey , keeps referring to asteroids as rocks hope to have one more conference in 2 years time Dr . Bill Ailor Aerospace Corporation Reflects that this is the most prestigious conference venue for these series of conferences . Dr . Richard

  • Follow Twitter Feed for Latest Updates on 2011 IAA Planetary Defense Conference

    Updated: 2011-05-09 07:24:00
    I shall attempt to tweet from the 2011 IAA Planetary Defense Conference. Twitter Feed: ac_charania

  • Dawn Begins its Vesta Phase

    Updated: 2011-05-03 20:24:20
    By Marc Rayman NASA’s Dawn spacecraft is less than three months away from getting into orbit around its first target, the giant asteroid Vesta. Each month, Marc Rayman, Dawn’s chief engineer, shares an update on the mission’s progress. Artist’s concept of NASA’s Dawn spacecraft. The giant asteroid Vesta, Dawn’s next destination, is on the lower left. The [...]

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