Julia Marín-Yaseli de la Parra

Engineer on Science Ground Segment Operations at Mars Express


Main Research Fields

Investigation of individual dust particles in the coma of comet 67P/Churyumov-Gerasimenko.

PhD second year directed by Michel Kueppers at ESA.

I studied astrophysics MSc with a postgraduate specialization of substellar and small objects, although my profile fits very well in space engineering. Currently I work at the European Space Agency, as part of the science operation ground segment division. I worked for 1.5 years on Rosetta spacecraft and currently I am doing the scientific planning for Mars Express mission while continuing my PhD in cometary sciences at the Complutense University of Madrid in my free time. This job provides me a general overview of ESA planetary missions and has reinforced my knowledge of planetary sciences.

Before working on ESA, I worked in Deimos Castilla la Mancha (DCM). I mainly belonged to the Ground operations team, processing the Earth observation acquisitions during the commissioning of Deimos 2, a high resolution imaging satellite launched on June 2015. I joined the company in the post design phase and I was the responsible for the space environment unit, developing the required analysis in spacecraft radiation environment and plasma interactions for requirements validation before launch. During my previous work/trainee experiences I developed some projects into the orbital dynamics subsystem. That gave me a general view about the mission analysis concept focusing into space environment issues, so I am able to develop basic orbital calculations. 



  • Astrophysicist
  • Planetary sciences
  • Cometary research
  • Dust
  • Mars scientific planning


Ongoing collaborations

MPS, Göttingen, Germany (OSIRIS/Rosetta)

The OSIRIS scientific imaging system was built by a consortium led by the Max Planck Institute for Solar System Research

(Germany) in collaboration with CISAS, University of Padova (Italy), the Laboratoire d'Astrophysique de Marseille (France),

the Instituto de Astrofísica de Andalucía, CSIC (S(Spain), ESA's Scientific Support Office, the Instituto Nacional de Técnica

Aeroespacial (Spain), the Universidad Politécnica de Madrid (Spain), the Department of Physics and Astronomy of Uppsala

UniveeUrsity (Sweden), and the Institute of Computer and Network Engineering of the TU Braunschweig (Germany).

OSIRIS was financially supported by the national funding agencies of Germany (DLR), France (CNES), Italy (ASI), Spain

(MEC) and Sweden (SNSB), and the ESA Directorate of Technical & Quality Management.


Independent confirmation of a methane spike on Mars and a source region east of Gale Crater

publication dateApr 1, 2019  publication descriptionNature geoscience

See publication

Mars Express Science Ground segment evolution along 15 years of mission, new challenges and future perspectives

publication dateSep 22, 2018  publication descriptionEPSC Abstracts Vol. 12, EPSC2018-966, 2018

See publication

The Rosetta science operations and planning implementation

publication dateJul 25, 2018  publication descriptionActa Astronautica 152 (2018) 163-174

See publication

Contemporaneous detection of methane on Mars and the search for source regions

publication dateJul 1, 2018  publication descriptionNature

See publication

A comparative study of mission planning systems: from Earth Observation to Interplanetary Missions

publication dateMay 31, 2018  publication descriptionSpaceOps 2018 talker in session number 116-PS-6, AIAA-2018-2657

See publication

Independent confirmation of a methane spike on Mars and a source region east of Gale Crater

publication dateApr 1, 2018  publication descriptionNature geoscience 1 , 1,6, 1,2,7,8,

See publication

Automated determination of dust particles trajectories in the coma of comet 67P
publication date Sep 20, 2017  publication description EPSC Vol. 11, EPSC2017-381-3, 2017 European Planetary

Science Congress 2017

See publication

Apr 10, 2017 Asteroids, Comets, Meteors - ACM2017 - Montevideo Congress

See publication

Science Data Volume management for the Rosetta spacecraft

May 1, 2016 Conference: 14th International Conference on Space Operations DOI: 10.2514/6.2016-2489

See publication

The Evolution of Rosetta-Philae Science Planning Processes Following the Philae Landing

May 1, 2016 Conference: 14th International Conference on Space Operations DOI: 10.2514/6.2016-2488

Definition of the mission statement for the "La Pinta" interstellar proyect

September 2015, Master thesis, Astrophysics department, University Complutense of Madrid. 

See publication

uFORS-1 qualification for Deimos-2 space mission implementation
Feb 1, 2015,  RADECS 2015. Selected poster

Meteor Orbit Determination using different models of dynamical computation
publication date Mar 3, 2012  publication description IAC paper code IAC-12,E2,2,2,x15742





Project/mission at ESA


  • (06/2015 - 10/2016) Rosetta SGS team
  • (10/2016 - Present)  Mars Express SGS team





Nonprofit work for science outreach


  • Talks in high schools working with "Empieza por educar" association
  • University collaboration in master science courses
  • Other outreach: "A pint for science", "Chatea con una astronoma", "women's day", podcast, ...
  • Past: Member of LEEM association (UPM), president of APSIDE association (Unizar), Ciencia Viva project, ...


Nonprofit work for gender equality and women's empowerment






News articles and podcasts (Spanish)