Mario De Leo-Winkler is from Mexico City, where he earned his B.S. in Physics, masters in Astronomy, and Ph.D. in Astrophysics from the National Autonomous University of Mexico (UNAM). He was awarded ECOS-NORD fellowships for research stays at the Institut de Recherche en Astrophysique et Planétologie, Toulouse, France in 2006, 2012 and 2014. He received full scholarships for the Vatican Observatory Summer School in Astrobiology (2005) and the Enrico Fermi School on Astrophysics, Italy (2008). In 2012 he was honored with a medal from the government of Mexico City for his informal education work with justice-involved youth. In 2014 he was awarded a UC MEXUS postdoctoral fellowship to perform public outreach and astrophysics research at the University of California, Riverside. In 2015, he was awarded a NASA MIRO posdoctoral fellowship through the FIELDS Program based at UC Riverside. Mario acted as interim project manager for the NASA MIRO FIELDS Program in 2017 and held the position of Director of Public Outreach and Education for the same project from 2015 until 2018. During those years Mario was also part of the outreach team of the Center for Astrobiology at UC Riverside as well as serving as an instructor of undergraduate courses at the same university from 2015 until 2018 (PHYS005 History of the Universe & HPNG015 Astrophotography).

As of 2019, Mario De Leo took the position of Director of the National System of Researchers and Director of Engagement at the National Council of Sciences of Mexico (the country’s equivalent to NSF), he’s also in charge of the National Program for Teaching Math. He is also a council member of the Pacific Division of the American Association for the Advancement of Science (AAAS) since 2017.

Since his undergraduate years, Mario has been passionate in finding better ways to communicate science effectively and broadly to the general public. He believes that new methods need to be developed in science communication and education for them to be more inclusive and broadly available. Mario is convinced that effective communication of research is an institutional responsibility, that citizens have a right to be aware of current research supported by tax-paying citizens, and that state-funded institutions owe a debt (that can be repaid through outreach and education) to their surrounding communities. He strongly believes that informed citizens are less likely to fall victims of hoax, they can become allies in scientists’ pursuit for knowledge, and are potential citizen scientists. Mario is a strong advocate of hands-on and sensorial experiences, as well as activities that lead citizens to think critically, and has been a driver of multidisciplinary projects bonding the arts and science.

He founded and managed what became the largest astronomical society in Mexico (Nibiru), has worked with justice involved youth in Mexico and the USA, has developed workshops for the Deaf community in the USA, and has interacted with thousands of under-represented citizens through science-related activities. Outreach and informal education activities directly supervised or created by him have reached over 1.2 million people since 2001.

Mario has ample experience in writing for magazines and newspapers, his most important contributions can be found in the Huffington Post and Muy Interesante magazine. He also wrote and delivered his own astronomy capsules in Mexican radio and television stations. He managed social media for the Institute of Astronomy at the UNAM (2012 – 2014), turning it into the most followed science-related social media outlet in Spanish in the world at the time.


* papers on astronomy
^ papers on education

  1. ^De Leo-Winkler, M., Wilson, G., Green, E., Chute, L., Henderson, E. Mitchell, T., 2019, The Vibrating Universe: Astronomy for the Deaf, Journal of Science Education and Technology, 28, 3, 222 – 230.
  2. ^De Leo-Winkler, M.A., 2018, Huevos podridos y el Universo: métodos heterodoxos de comunicación de la ciencia, Etcétera: Revista del Área de Ciencias Sociales del CIFFyH, 3, 1 – 12.
  3. ^De Leo-Winkler, M.A., Canalizo, G., Wilson, G., 2016, Astrophotography, a Portal for Engaging Non-STEM Majors in Science, International Journal of STEM Education, 3 (1), 1 – 9.
  4. *Verdugo, T., Limousin, M., Motta, V., Mamon, G.A., Foëx, G., Gastaldello, F., Jullo, E., Biviano, A., Rojas, K., Muñoz, R.P., Cabanac, R., Magaña, J., Fernández-Trincado, J.G., Adame, L., De Leo, M.A., 2016,Combining Strong Lensing and Dynamics in Galaxy Clusters: integrating MAMPOSSt within LENSTOOL I. Application on SL2S J02140-0535, A&A, 595, A30.
  5. ^Silva, A., De Leo, M.A., Alarcón, A., 2015, Platforms and Graphication Tools for a mobile application: Simulation of Planetary Objects’ Trajectories, Research in Computing Science, 98, 129-139 p.
  6. *de Diego, J. A., Polednikova, J., Bongiovanni, A., Pérez-García, A. M., De Leo, M.A., Verdugo, T., Cepa, J., 2015, Testing microvariability in quasar differential light curves using several field stars, AJ, 150, 44D.
  7. *Laporte, N.; Streblyanska, A., Kim, S., Pelló, R., Bauer, F. E., Bina, D., Brammer, G., De Leo, M.A., Infante, L., Pérez-Fournon, I., 2015, Frontier Fields: Combining HST, VLT, and Spitzer data to explore the z ~ 8 Universe behind the lensing cluster MACSJ0416.1-2403, A&A, 575A, 92L
  8. ^Silva, A., De Leo, M.A., Cuevas, R.E., 2014, Análisis del actual desarrollo de aplicaciones móviles sobre astronomía para dispositivos basados en Android, Tlalmati, 3, 93 – 103 pp.
  9. *de Diego, J.A., De Leo, M.A., Cepa, J., Bongiovanni, A., Verdugo, T., Sánchez-Portal., M., González-Serrano, J.I., 2013, Filter-Induced Bias in LyAlpha Emitter Surveys: a Comparison Between Standard and Tunable Filters. Gran Telescopio Canarias Preliminary Results, AJ, 246:96
  10. *Maizy, A., Richard, J., De Leo, M.A., Pelló, R., Kneib, J. P., 2010, Looking for the first galaxies: lensing or blank fields?, A&A, 509A, 105M


  1. ^De Leo-Winkler, M. A., 2019, The universal Universe or making astronomy inclusive, Nature Astronomy, 3, 7, 576-577.
  2. Du, X., Mobasher, M., De Leo-Winkler, M., 2019, Research, Education, and Outreach in the NASA MIRO FIELDS Program, American Astronomical Society Meeting Abstracts, 233, p. 175.
  3. Cobian, J.; De Leo-Winkler, M. A.; Arp., T., 2018, GridFire: An Online Interactive Tool for Fire Science Education, Western States Section of the Combustion Institute, WSSCI, 2018.
  4. De Leo-Winkler, M.A.; Wilson, G.; Simpson, S.L., 2018, Sensing the Universe: Outreach Activities for Inclusion, in IAU Communicating Astronomy to the Public 2018, IAU CAP, in press.
  5. De Leo-Winkler, M.A., 2018, Astronomy for Justice-Involved Youth, in IAU Communicating Astronomy to the Public 2018, IAU CAP, in press.
  6. De Leo-Winkler, M.A., Canalizo, G; Wilson, G., 2017, Astrophotography, a Portal for Engaging non-STEM Majors in Science, in Proceedings of the Pacific Division of the AAAS, Hawaii, 36 (1), p. 57
  7. Straka, R.; De Leo-Winkler, M.; Labor, T., 2016, From Stockhausen to Messiaen and Beyond: Creating Music from Astronomy for Public Outreach, in Proceedings of the Pacific Division of the AAAS, San Diego, 35 (1), p. 157
  8. De Leo-Winkler, M.; Wilson, G.; Mitchell, T.; Green, W.; Durham, E.; Chute, L.; Daniels, G., 2016, The Vibrating Universe: Astronomy for the Deaf, in Proceedings of the Pacific Division of the AAAS, San Diego, 35 (1), p. 158
  9. De Leo-Winkler, M.A., 2016, Descolonizar la Divulgación Astronómica, C+Tec, Gobierno de Michoacán, p. 21-23
  10. De Leo-Winkler, M.A.; Canalizo, G.; Pichardo, B.; Arias, B., 2015, Public Outreach and Educational Experiences in Mexico and Latin American communities in California, IAUGA, 29, 2257876
  11. De Leo, M. A.; de Diego, J. A.; Verdugo, T.; Bongiovanni, A.; Cepa, J.; González-Serrano, J. I., 2013, Lyman Alpha Emitters in gravitational lensed fields, Fourth Science Meeting with the GTC, RMxAC, 42, 114
  12. de Diego, J. A.; De Leo, M. A.; Cepa, J.; Bongiovanni, A., 2013, LAEs & LBGs with OSIRIS, Fourth Science Meeting with the GTC, RMxAC, 42, p. 68-69
  13. de Diego, J. A.; De Leo, M.A.; Bongiovanni, A.; Verdugo, T.;  Cepa, J., 2011, High redshift galaxies & Lyman Alpha Emitters through gravitational lensing, RMxAC, 40, 117D
  14. de Diego, José A.; Cepa, J.; De Leo, M.; Bongiovanni, Á. 2011, High redshift galaxies through gravitational lensing, Journal of Physics: C.S., 314, 1
  15. de Diego, J. A.; Verdugo, T.; De Leo, M.A., 2007, High-z Galaxies Through Gravitational Lensing, RMxAC, 28, 89D