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Ritesh Kumar Mishra 
NASA Post-Doctoral Program Fellow
Astromaterials Research Exploration and Science (ARES) 
Exploration and Integration Science Directorate (EISD)
NASA Johnson Space Centre
2101, NASA Parkway 
Houston, TX, USA 77058. 
Tel: +1 281-244-5188
Fax: +1 281-483-1573
e-mail: riteshdotkdotmishra AT nasa.gov; fullnameATgmail.com
Webpage: JSC-ARES


Current Research Interests


The Origin and early Evolution of our Solar System by studying "now-extinct" short-lived radioisotopes (60Fe, 26Al etc.) records in the 'FIRST' formed solids of the Solar System namely, Calcium, Aluminium-rich Inclusions (CAIs) and chondrules, using Secondary Ion Mass Spectrometer.

Research Inclinations and Future Research work will include:

  • Chronology of Events and Processes in the Early Solar System, particularly,
  •             Formation and evolution of CAIs and other refractory inclusions
  •             Genealogy of CAIs and Chondrules
  •             Nebular and Parent body Metamorphism of components of Meteorites
  • Astrophysics, Stellar Evolution, and Nucleosynthesis
  • Early evolution of the Earth
  • Geochronology and Evolution of Indian shield
  • Origin of evolution of Life on the Earth
  • Development of Analytical techniques and Analytics for in-situ laboratory measurements and Planetary missions

Appointments & Professional Experiences

Currently, NASA Post-Doctoral Program Fellow at Centre for Isotope Cosmochemistry and Geochronology of Lyndon B. Johnson Space Centre, Houston, USA Sept. 2014 Onwards- present.
Visiting Scientist at NanoSIMS laboratory of Physical Research Laboratory, Ahmedabad, Gujarat, India April 2014-Sept. 2014.
Post Doctoral Fellow at Centre de Recherches Pétrographiques et Géochimiques (CRPG- CNRS) Nancy, France April 2010- Oct. 2013.
Post Doctoral Fellow at Physical Research Laboratory, Ahmedabad, Gujarat University, Ahmedabad, India January-April 2010.


Education

Ph.D. (Science) : Physical Research Laboratory, Ahmedabad, Gujarat, India;
                 Supervisor : Prof. J. N. Goswami; Physical Research Laboratory, Ahmedabad, India.
                 Thesis title :“Records of now-extinct nuclides in early Solar System objects : An Ion microprobe study”.
M.Sc. (Physics) : Department of Physics and Astrophysics; University of Delhi; India
B.Sc.-B.Ed. (Integrated) Physical Sciences : Regional Institute of Education Bhopal, Barkatullah University, MP, India.
AISSCE : Sciences (Phys., Maths, Chem., Bio.) Sainik School Balachadi, Jamnagar, Gujarat, India.


Fellowships and Awards

1. NASA (National Aeronautical and Space Administration) Post-Doctoral Program (NPP) Fellowship, Johnson Space Centre, Houston, USA 2014-2016
2. Alexander von Humboldt Fellowship University of Heidelberg, Germany 2015-2017
3. Carl Storm Fellowship 2009
4. Senior Research Fellowship Physical Research Laboratory Ahmedabad 2006-2009
5. Junior Research Fellowship Physical Research Laboratory Ahmedabad 2004-2006
6. Junior Research Fellowship U.G.C. Physical Sciences December 2003
7. Graduate Aptitude Test in Engineering (G.A.T.E.) Physics 2004 97.4%ile All India Rank-70
8. Graduate Aptitude Test in Engineering (G.A.T.E.) Physics 2003 95.8%ile All India Rank-97
9. National Eligibility Test (NET) Lectureship Physical Sciences June 2003
10. Center For Advanced Studies National Scholarship awarded under University Grant commission (U.G.C.) scheme at University of Delhi for Years 2001-2003
11. Merit Scholarship at Regional Institute of Education, Bhopal Awarded by National Council for Education Research and Training (N.C.E.R.T.) For Years 1995-1999


Professional Services:

Reviewer for NASA Earth and Space Science Fellowship (NESSF) funding program (2010)
Peer reviewer for research articles submitted in Geochimica et Cosmochimica Acta, Meteoritics and Planetary science, Chemical Geology, Geochemical Journal


Teaching Experience and Curriculum Development:

1. Teaching Assistant Advanced Graduate Course Vikram Sarabhai Community Science Centre Ahmedabad, Gujarat  August 2004 – March 2005. 
2. PGT Physics in Rani Laxmi Bai Public School Datia, Madhya Pradesh February- August 2004.
3. PGT Mathematics & Physics in Rashtriya Sahayak Vidyalaya Bikaner, Rajasthan 12 September-16 October 2003.
4. TGT Mathematics in Kendriya Vidyalaya A.F. Station Chandinagar; Baghpat, Uttar Pradesh 12 July – 14 August 2000.
5. Internship (B.Sc-B.Ed.) Science & Mathematics in Kendriya Vidyalaya No. 2 Bhopal; Madhya Pradesh August – November 1998.


Selected Publications:

  1. R. K. Mishra, K. K Marhas and Samir 
    Abundance of 60Fe inferred from nanoSIMS study of QUE 97008 (L3.05) chondrules. 
    Earth and Planetary Science Letters 436, 71-81, 2016. 

  2. R. K. Mishra and M. Chaussidon,
    Fossil records of high level of 60Fe in chondrules from unequilibrated chondrites.
    Earth and Planetary Science Letters 398, 90-100, 2014.

  3. R. K. Mishra and J. N. Goswami,
    Fe-Ni and Al-Mg isotope records in UOC chondrules: Plausible stellar source of 60Fe and other short-lived nuclides in the early Solar System. ,
    Geochimica et Cosmochimica Acta 132, 440-457, 2014.

  4. R. K. Mishra and M. Chaussidon,
    Timing and extent of Mg and Al isotopic homogenization in the early inner Solar System ,
    Earth and Planetary Science Letters 390, 318-326, 2014.

  5. Tu-Han Luu, M. Chaussidon, R. K. Mishra, C. Rollion-Bard, J. Villeneuve, G. Srinivasan and J. L. Birck,
    High precision Mg isotope measurements of meteoritic samples by secondary ionization mass spectrometry. ,
    Journal of Analytical Atomic mass spectrometry 28, 67-76, 2013.

  6. R. K. Mishra, M. Chaussidon and K. K. Marhas,
    Ni isotope systematics in chondrules from unequilibrated chondrites to constraint 60Fe in the early Solar system. ,
    Proceedings of science (NIC XII) 85, 2012.

  7. R. K. Mishra, J. N. Goswami, S. Tachibana, G. R. Huss and N. G. Rudraswami
    60Fe and 26Al in chondrules from unequilibrated chondrites: Implications for early solar system processes. ,
    Astrophysical Journal (Letters) 714, L217-L221, 2010. 
Abstracts:

  1. R. K. Mishra, J. I. Simon, D. K. Ross, and K. K. Marhas, 
    CAIs in Semarkona (LL3.0).
      
    LPSC, XLVII, Abstract # 2750 (2016).

  2. R. K. Mishra, J. I. Simon, S. Messenger, K. K. Marhas, D. K. Ross, A. W. Needham, and J. Han
    Oxygen isotopes in perovskites and associated mineral assemblages in a hibonite-bearing Allende CAI.
    Meteoritics & Planetary Science, 50, A#5133 2015.

  3. R. K. Mishra, J. I. Simon, D. K. Ross, L. P. Keller, K. K. Marhas, and A. W. Needham,
    A refractory inclusion in unequilibrated ordinary chondrite (LL3.3) Allan hills A81251.
    Meteoritics & Planetary Science, 50, A#5139 2015.

  4. A. W. Needham, S. Messenger, L. P. Keller, J. I. Simon, J. Han, R. K. Mishra, and K. K. Marhas,
    Aluminium-Magnesium isotope systematics in Wark-Lovering rims.
    Meteoritics & Planetary Science, 50, A#5014 2015.

  5. R. K. Mishra, K. K. Marhas, J. I. Simon, and D. K. Ross,
    Evidence of metasomatism in the lowest petrographic types inferred from a Na, K-rich rim around a LEW 86018 (L3.1) chondrule.
    AGU, Joint meeting, Montreal, Abstract # 33982 (2015).

  6. R. K. Mishra, J. I. Simon, D. K. Ross, A. W. Needham, S. Messenger, L. P. Keller, J. Han, and K. K. Marhas,
    Na, K-rich rim around a chondrule in unequilibrated ordinary chondrite LEW 86018 (L3.1).
    LPSC, XLVI, Abstract # 2994 (2015).

  7. A. W. Needham, S. Messenger, L. P. Keller, J. I. Simon, J. Han, and R. K. Mishra,
    Oxygen isotope variations within a single Vigarano CAI.
    LPSC, XLVI, Abstract # 2865 (2015).

  8. R. K. Mishra, C. Rollion-Bard and M. Chaussidon,
    To be, or not to be; homogeneous in 26Al during the early Solar System ?
    Meteoritics & Planetary Science, 48, A#5217 2013.

  9. K. K. Marhas, R. K. Mishra, and Samir,
    60Fe-60Ni isotope systematic study of QUE 97008 chondrite using NanoSIMS.
    Annual conference on Indian Society for Mass Spectrometry 2013.

  10. R. K. Mishra, and M. Chaussidon,
    High precision 26Al study of refractory components in chondrites.
    Paneth Kolloquium, Noerdlingen, Germany 2012.

  11. K. K. Marhas, and R. K. Mishra,
    Fossil record of 60Fe in QUE 97008 chondrules.
    Meteoritics & Planetary Science, 47, A#5273 2012.

  12. R. K. Mishra, and M. Chaussidon,
    60Fe-60Ni isotope systematics in silicates in chondrules from unequilibrated chondrites: yet again and status quo.
    Meteoritics & Planetary Science, 47, A#5194 2012.

  13. R. K. Mishra, and M. Chaussidon,
    Ni isotope systematics in chondrules from unequilibrated chondrites to constraint 60Fe in the early Solar system.
    Nuclei in cosmos XII, Cairns, Australia 2012.

  14. R. K. Mishra, and M. Chaussidon,
    Mg isotopic study of Ca-,Al-rich refractory inclusions from carbonaceous chondrites: Constraints on 26Al distribution in the accretion disk and condensation processes.
    LPSC, XLIII, Abstract # 1942 (2012).

  15. R. K. Mishra, and M. Chaussidon,
    High precision 26Al-26Mg isotope systematics in CAIs to constrain the early solar system events.
    6th Russbach school on Nuclear Astrophysics Russbach, Austria 2012.

  16. R. K. Mishra, and M. Chaussidon,
    Constraining the early history of Solar Systems from 26Al-26Mg isotope systematics in CAIs.
    Workshop on Formation and Early Evolution of Very Low mass Stars and Brown Dwarf Garching, Germany 2011.

  17. R. K. Mishra, and M. Chaussidon,
    Records of early Solar system events inferred from Al-Mg isotope systematics in CV3 chondrites.
    Workshop on Formation of the First Solids in solar system Kauai, Hawaii, USA 2011.

  18. R. K. Mishra, and M. Chaussidon,
    Chronology of early Solar System inferred from precise Al-Mg Isotope systematics of Vigarano CAIs.
    21st V. M. Goldschmidt conference Abstract#3351 (2011).

  19. R. K. Mishra, and M. Chaussidon,
    26Al-26Mg Chronometry of CAIs from CV3 Chondrites,
    Meteoritics & Planetary Science, 46, A162 (2011).

  20. R. K. Mishra, M. Chaussidon, and Tu. H. Luu,
    Petrographic and high precision Al-Mg isotope systematics of a type B CAI from Vigarano,
    LPSC, XLII, Abstract # 2110 (2011).

  21. R. K. Mishra, and J. N. Goswami,
    60Fe and 26Al records in UOC chondrules: Evidence for their contemporaneous injection into early solar system,
    Meteoritics & Planetary Science, 44, A144 (2009).

  22. R. K. Mishra, and J. N. Goswami,
    Fe-Ni and Al-Mg isotope systematics in UOC chondrules,
    in Gordon Research Conference, Boston USA, July 2009.

  23. R. K. Mishra, and J. N. Goswami,
    Fe-Ni and Al-Mg isotopic studies in unequilibrated ordinary chondrites,
    Conference on Planet formation and evolution: The Solar system and extrasolar planets. Tubingen, Germany March 2009.

  24. R. K. Mishra, J. N. Goswami, S. Tachibana, G. R. Huss and N.G. Rudraswami,
    Fe-Ni and Al-Mg isotope systematics in chondrules from unequilibrated ordinary chondrites,
    LPSC, XL, Abstract # 1689 (2009).

  25. R. K. Mishra, and J. N. Goswami,
    Fe-Ni isotope systematics in UOC chondrules,
    International conference on Terrestrial planets: Evolution through time. Ahmedabad, India January 2008.

  26. R. K. Mishra, and J. N. Goswami,
    Fe-Ni and Al-Mg isotope systematics in chondrules from Semarkona (LL3.0) and LEW 86134 (L3.0),
    Meteoritics & Planetary Science, 43, A99 (2008).

  27. J. N. Goswami and R. Mishra,
    Fe-Ni isotope systematics in silicate phases of UOCs chondrules,
    Meteoritics & Planetary Science, 42, A58 (2007).

  28. J. N. Goswami, R. Mishra, and N. G. Rudraswami, 
    Fe-Ni and Al-Mg isotope records in UOCs belonging to low petrologic grades, 
    NIPR 31st Symposium on Antarctic Meteorites (2007).

  29. J. N. Goswami, R. Mishra, and N. G. Rudraswami,
    60Fe and 26Al records in chondrules from unequilibrated ordinary chondrites of low petrologic type,
    LPSC, XXXVIII, Abstract # 1943 (2007).

Mentor/Advisor/ Collaborator:

Prof. J. N. Goswami  (Ph.D. Advisor)
Ex. Director, Physical Research Laboratory 
Navrangpura Ahmedabad India 380009
Tel: 91 079 2631 4331; goswami@prl.res.in

Prof. Marc Chaussidon (Post Doc. Advisor)
Director, Institut du Physique de Globe du Paris (IPGP)
1 Rue Jussieu 75238 Paris Cedex 05 France 
Tel: 033 01 8395 7787; chaussidon@ipgp.fr 

Dr. Justin I. Simon (Post Doc. NPP Advisor)
Planetary Scientist, Centre for Isotope Cosmochemistry & Geochronology
NASA Lyndon B. Johnson Space Centre, Mail Code XR111
Houston, Texas 77058 USA
Tel: 01 281 244 51 justin.i.simon@nasa.gov

Prof. Bernard Marty
Professor, Centre de Recherches Petrographiques et Geochimiques, (CRPG-CNRS)
BP 20, universite de Lorraine, 15 rue Notre Dame des Pauvres, 
Vandoeuvre les Nancy , France 54501
Tel: 033 3 83 59 4222; bmarty@crpg.cnrs-nancy.fr

Prof. Gary Huss
Director, W. M. Keck Laboratory for Cosmochemistry
University of Hawai'i at Manoa
Hawai'i Institute of Geophysics and Planetology
1680 East-West Road, Post 602 Honolulu, HI 96822 USA
Tel: 1 808 956 9342; ghuss@higp.hawaii.edu

Dr. Shogo Tachibana
Assistant Professor, Dept. of Natural History Sciences
Hokkaido University, N10-W8 Sopporo 060-810 Japan
Tel: 81 11 0706 3586; tachi@ep.sci.hokudai.ac.jp 

 

Details 

Dr. Ritesh Kumar Mishra
Date of birth: 23rd May 1978 at Bhagalpur, Bihar, India. 
Nationality: Indian
Married; One Daughter 
Hobbies: Sports, Writing Poems, and Reading



Dedication/ Obituary to my beloved brother: Late (Capt.) Nitin Kumar Mishra






Did you notice the golden line and small red, cyan line at the top of the picture ? The golden line represents the time since the formation of the Solar system (~4567000000 Years). The red line represents the X 100 magnified time scale (shown as the full scale at the lower panel) of HUMAN evolution on earth of ~300000 Years. The CAIs and Wark-Lovering rim (shown in the lower panel) formed over a time scale of ~106 and 30000 years at the beginning of the Solar system.   
Last update 20 January 2016

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