Design of participatory science projects

• Are we alone in the universe? (2023)

Organization of viewing events

• Total Solar Eclipse, Boerne, TX (2024)
• Partial Solar Eclipse, Pacific Palisades, CA (2023)
• Total Solar Eclipse, Vicuña, Chile (2019)
• Total Solar Eclipse, Madras, OR (2017)
• Stargazing, Machu Picchu, Peru (2013)
• Galilean Satellites, Santa Monica, CA (2013)
• Venus Transit, Santa Monica, CA (2012)

Acting as panelist or moderator

• "Alien Night", Santa Monica, CA (2023)
• CitizenScience.Gov celebration (2023)
• "Communicating Science Effectively in Today's World", UCLA (2019)
• "Plate Tectonics", UCLA (2018)
• "Magnetic Structures in the Solar System", UCLA (2018)
• "Cassini at Saturn", UCLA (2017)
• "It Fell From The Sky!", UCLA (2017)
• "Planets Around Other Stars", UCLA (2017)
• XPRIZE panel discussion, Los Angeles, CA (2015)
• "A conversation with NASA Administrator Charles Bolden", UCLA (2014)
• AAS Public Session on Planetary Taxonomy, Pasadena, CA (2009)

Authoring web articles

• Proposed planet definition (2024)
• What makes a planet? (2006, with updates)
• Would Planet Nine pass the planet test? (2016, with updates)
• Are there any planets outside of our solar system? (2021)
• There Was a Full Moon and Nothing Happened ... Again (2015)
• Annenberg's 'Sink or Swim' exhibit (2015)
• How realistic is the movie 'Gravity'? (2013)

Consulting for entertainment industry

Some details are omitted to adhere to NDAs and/or protect intellectual property.

• Advised director and production designer on exoworlds, 2024.
• Advised screenwriter on a child prodigy story, 2019.
• Advised writer and director on an exoplanet-related story, 2018.
• Advised screenwriter on a space adventure story, 2018.
• Advised producer on the space adventure story Ad Astra, 2018.
• Advised researcher on CBS's Star Trek: Discovery, 2017-2018.
• Advised consulting producer on Netflix show Brainchild, 2017.
• Advised screenwriter on an impact-related story, 2017.
• Advised screenwriter on an asteroid-related story, 2017.
• Advised screenwriter on a SETI-related story, 2016.
• Advised screenwriters on Netflix show Lost in Space, 2016.
• Advised screenwriter on an impact-related story, 2015.
• Advised screenwriter on an asteroid-related story, 2015.
• Advised actor on a space-related story, 2015.
• Advised screenwriter and producer on a planet-related story, 2015.

Public speaking and interviews

• The Conversation, "Carl Sagan’s scientific legacy extends far beyond ‘Cosmos’", Nov. 5, 2024.
• UCLA Exploring Your Universe talk, "Are we alone in the universe?", Nov. 3, 2024.
• Daily Bruin interview, "What makes a planet?", Sept. 30, 2024.
• AAS Journal Author Series, Quantitative Criteria for Defining Planets, Sep 17, 2024.
• La Libre Belgique interview, "De huit a des milliards", Jul. 29, 2024.
• EarthSky video interview, "What is a planet?", Jul. 22, 2024.
• Universe Today interview, "Is it time to fix the definition of 'Planet'?", Jul. 18, 2024.
• Ciel et Espace interview, "Definition d'une planete", Jul. 17, 2024.
• LiveScience interview, "Astronomers want to change how we define a planet", Jul. 17, 2024.
• WBOY interview, "Search for liquid oceans in our solar system", Jul. 18, 2024.
• Radio Canada interview, "Qu’est-ce qu’une planete?", Jul. 13, 2024.
• Daily Bruin interview, "A partial eclipse of the heart", Apr. 14, 2024.
• Talk to UCLA Alumni and Friends, "The search for life in the universe", Apr. 8, 2024.
• Talk to UCLA Alumni and Friends, "The total solar eclipse of April 8, 2024", Apr. 8, 2024.
• Talk to Harvard and UCLA Alumni and Friends, "What really happened to Pluto", Apr. 5, 2024.
• LA Times interview, "LA spots to watch the awe-inspiring solar eclipse", Apr. 5, 2024.
• Forbes India, "Totality ready: US braces for April 8 solar eclipse frenzy", Apr. 4, 2024.
• USA Today Ask-Me-Anything on Reddit, "Total solar eclipse", Apr. 4, 2024.
• LA Times interview, "How to watch the solar eclipse from California", Apr. 1, 2024.
• Washington Post interview, Penumbral lunar eclipse, Mar. 22, 2024.
• Talk for Town & Gown Affiliates of UCLA, "Eclipses", Jan. 23, 2024.
• Talk for A Space for Space and Wildwood High School, "UCLA SETI", Jan. 12, 2024.
• UCLA Exploring Your Universe talk, "Are we alone in the universe?", Nov. 5, 2023.
• Organized partial solar eclipse viewing party at public park, Oct. 14, 2023.
• Vox interview, How humans are searching for intelligent alien life, Oct. 12, 2023.
• Talk describing eclipses to Kindergarten class, "Eclipses", Oct. 5, 2023.
• LA Times interview, UFOs had their day in Congress, Aug. 4, 2023.
• Business Insider interview, Effect of satellite constellations on radio astronomy, July 17, 2023.
• Daily Bruin interview, UCLA SETI brings search for ET to everyday enthusiasts, June 11, 2023.
• Radio interview for Australian Broadcasting Corporation, "The Science Show", May 26, 2023.
• Presenter and panelist at Santa Monica Wildwood School, "Alien Night", May 13, 2023.
• Talk at South Bay Astronomical Society, "The search for life in the universe", May 5, 2023.
• Popular Science interview, "Alien civilizations could send us messages by 2029", Apr. 25, 2023.
• Panelist for Citizen Science Month Celebration organized by CitizenScience.Gov, Apr. 25, 2023.
• Bruin Space Speaker Series, "The UCLA Search for Radio Technosignatures", Apr. 13, 2023.
• Keynote speaker at The Planetary Society Welcome Festival, Mar. 18, 2023.
• Spectrum News 1 interview, "Are we alone in the universe?", Feb. 28, 2023.
• UCLA SETI citizen science platform launch webinar, Feb. 16, 2023.
• LAist interview, "Help Find Extraterrestrial Life. Really", Feb. 15, 2023.
• Guest on The Planetary Society’s Planetary Radio Podcast, Feb. 15, 2023.
• LA Times interview, "UCLA is asking for the public’s help in finding signs of ETI", Feb. 2023.
• LA Times interview, "Are the recent UFOs possibly alien? Experts don't think so", Feb. 2023.
• Launched citizen science collaboration http://arewealone.earth, Feb. 14, 2023.
• Nature Magazine interview, "Will an AI be the first to discover alien life?", Jan. 30, 2023.
• Scientific American interview, "New Space Radar", Jan. 16, 2023.
• Talk promoting STEM to four- and five-year-olds, "The Solar System", Nov. 4, 2022.
• American Public Media "Brains On" Podcast Interview, "The Moon", Sept. 19, 2022.
• Talk to UCLA alumni and friends, "Our Home in the Cosmos", Aug. 13, 2022.
• Talk to UCLA alumni and friends, "Earth and Planetary Geology", Aug 15, 2022.
• Talk to UCLA alumni and friends, "The Search for Life in the Universe", Aug. 16, 2022.
• Quanta Magazine interview, "Secrets of the Moon’s Permanent Shadows", Apr. 28, 2022.
• KNX radio interview, "A Beacon in the Galaxy", Apr. 19, 2022.
• Guest on The Planetary Society’s Planetary Radio Podcast, Mar. 16, 2022.
• NBC News interview, "Should Pluto be a planet again?", Dec. 30, 2021.
• Digital Trends interview, "The next 10 years will be the decade of Venus", Sept. 11, 2021.
• Talk promoting STEM to ten-year-olds, "Life in the Universe", Aug. 2, 2021.
• The Conversation, "Are there any planets outside of our solar system?", Jul. 19, 2021.
• Astronomy Mag. interview, "What echoing radio waves taught us about Venus", May 26, 2021.
• The Elderllama Podcast interview, "Aliens, Astrophysics, and Asteroid Impacts", May 3, 2021.
• South China Morning Post interview, "China should hunt asteroids with radar", Feb. 4, 2021.
• Science Alert interview, "They All Came from Us", Nov. 19, 2020
• Washington Post interview, "Astronomers spy asteroid that has its own moon", Feb. 13, 2020.
• UCLA Exploring Your Universe talk, "Life in the Universe", Nov. 3, 2019.
• UCLA Emeriti/Retiree Associations, "Consulting for the Entertainment Industry", Jun. 13, 2019.
• Talk to UCLA alumni and friends, "The Astronomy of Lost Civilizations", Jul. 3, 2019.
• Talk to UCLA alumni and friends, "The Total Solar Eclipse of 2019", Jun. 30, 2019.
• Talk to UCLA alumni and friends, "The Search for Life in the Universe", Jun. 28, 2019.
• UCLA Emeriti & Retirees, "Consulting for the Entertainment Industry", Jun. 13, 2019.
• UCLA panel moderator, "Communicating Science Effectively in Today's World", May 21, 2019.
• UCLA Alumni Association of Japan, "The Search for Life in the Universe", Mar. 25, 2019.
• Melon Sci-Fi Conference, Hong Kong, "Aliens on the Galactic Silk Road", Mar. 23, 2019.
• Talk at UCLA Alumni Association of Hong Kong, "Search for Life in the Universe", Mar. 21, 2019.
• Talk at California State University, Northridge, Bianchi Planetarium, Mar. 1, 2018.
• UCLA EPSS panel moderator, "Plate tectonics", Oct. 29, 2018.
• Forbes.com interview, "Five Mercury Puzzles", Oct. 16, 2018.
• Mount Wilson Observatory talk, "The search for life in the universe", Sept. 15, 2018.
• L'Express interview, "La Lune, une amie qui vous veut du bien?", Sept. 10, 2018.
• Viking Orion enrichment lecture, "The search for life in the universe", Jun. 17, 2018.
• NYT interview, "Challenging What NASA Knows About Space Rocks", Jun. 14, 2018.
• UCLA EPSS Panel moderator, "Magnetic Structures in the Solar System", Feb. 12, 2018.
• Universe Today interview, "A search for technosignatures in the Kepler field", Feb. 9, 2018.
• Talk at First Friday Ideas Salon, "Are we alone in the universe?", Jan. 5, 2018.
• Forbes.com interview on the number of exoplanets, "Billions Of Exoplanets?", Dec. 31, 2017.
• UCLA EPSS Panel moderator, "Cassini at Saturn", Oct. 26, 2017.
• Talk at Bruin Alliance of Skeptics and Secularists, "Questionable Beliefs", Sept. 29, 2017.
• KTHV Television interview, "Does a full moon really impact hospitals?", Sept. 5, 2017.
• Talk in preparation of viewing the Great American Eclipse in Madras, OR, Aug. 21, 2017.
• Westwood Village Rotary Club, "The Great American Eclipse of 2017", Aug. 10, 2017.
• Reuters TV interview, "The Great American Eclipse of 2017", Aug. 9, 2017.
• CBS 2/KCAL 9 TV interview, "The Great American Eclipse of 2017", Aug. 9, 2017.
• BBC mundo interview, "NASA's Asteroid Deflection Mission", July 3, 2017.
• Super News Live interview, "Life in Space", Jun. 27, 2017.
• UCLA EPSS Panel moderator, "It Fell From The Sky!", May 9, 2017.
• Talk at Harvard Club of Southern California, "Out of this World!", Apr. 30, 2017.
• Talk at Bruin Alliance of Skeptics and Secularists, "Questionable Beliefs", Apr. 28, 2017.
• Radio interview for Australian Broadcasting Corporation, "The Science Show", Apr. 1, 2017.
• CNET interview, "Planet definition", Mar. 24, 2017.
• Washington Post interview, "Planet definition", Mar. 20, 2017.
• France Télévisions TV interview, "Supermoon", Nov. 14, 2016.
• France Inter radio interview, "Supermoon", Nov. 11, 2016.
• UCLA Exploring Your Universe talk, "Life in the Universe", Nov. 6, 2016.
• Registered nurses of Alberta, "The full moon phenomenon: fact or fiction?", Oct. 27, 2016.
• Wall Street Journal interview, "Full moon and hospital workers", Oct. 17, 2016.
• BBC Mundo interview, "What is a Strawberry Moon?", Jun. 20, 2016.
• Life Science/CBS News interview, "No, Mercury Retrograde Will Not Mess Up Your Life", May 6, 2016.
• Talk to UCLA alumni and friends at Boeing headquarters, "UCLA in Space", Mar. 29, 2016.
• Lateral Magazine interview, "Wandering stars", Mar. 18, 2016.
• Radio Canada interview, "La sombre histoire de Mercure", Mar. 13, 2016.
• UCLA Undergraduate Astronomical Society, "How to define a planet", Feb. 24, 2016.
• Retraction Watch interview, "Why publishing negative findings is hard", Feb. 17, 2016.
• Today's Science interview, Infobase Learning, "Conversation with scientists", Feb. 17, 2016.
• Today's Science interview, Infobase Learning, "How to define a planet", Feb. 10, 2016.
• Talk at SpaceX headquarters, "UCLA in Space", Feb. 4, 2016.
• BBC Sky at Night interview, "Planet Nine", Jan. 29, 2016.
• KPCC radio interview, "Planet Nine: What should its name be if it's found?", Jan. 22, 2016.
• Univision TV interview, "Questionable beliefs associated with the full moon", Nov. 21, 2015.
• LA Times interview, "Why we need a new definition of the word 'planet'", Nov. 13, 2015.
• New Scientist interview, "New definition of planethood", Nov. 11, 2015.
• German Public Radio interview, "What makes a planet?", Nov. 11, 2015.
• XPRIZE panel discussion with Virgin Galactic, Planetary Resources, NASA JPL, Nov. 6, 2015.
• The Guardian interview, "Who you calling a dwarf?", July 15, 2015.
• FiveThirtyEight interview, "Is The Moon To Blame?", Jun. 11, 2015.
• Radio interview The Pulse/WHYY, "Births during a full moon?", aired on May 28, 2015.
• Radio New Zealand interview, "Another Lunar Incident", aired on May 6, 2015.
• BBC Mundo Interview, La luna llena "no tiene la culpa de nada", May 4, 2015.
• Radio Canada interview, "Blame the Moon Study", aired on Mar. 31, 2015.
• Huffington Post interview, "Why We Blame Strange Events On The Full Moon", Mar. 31, 2015.
• Astronomía Online article, "¿Qué es lo que define a un planeta?", (w. R. Tohmé), Mar. 7, 2015.
• M.S. Le Boréal lecture, "Our Home in the Cosmos", Feb. 6, 2015.
• M.S. Le Boréal lecture, "Life in the Universe", Jan. 31, 2015.
• NHK documentary, "Cosmic Front: Mystery of Mercury", Dec. 25, 2014.
• Science and Entertainement Exchange, "Disruption: Asteroid Impacts", Google, Nov. 11, 2014.
• Salon Français de Los Angeles, "Life in the Universe", Apr. 15, 2014.
• Bilingual talk at Alliance Française de Los Angeles, "Life in the Universe", Mar. 6, 2014.
• Interview of NASA Administrator, "A conversation with Charles Bolden", Jan. 22, 2014.
• UCLA Exploring Your Universe talk, "Life in the Universe", Nov. 17, 2013.
• CNN interview, "What's behind the science of `Gravity'?", Sep. 28, 2013.
• Stargazing with UCLA alumni and friends, July 4, 2013.
• Talk to UCLA alumni and friends, "Origin and Evolution of Life in the Universe", July 4, 2013.
• Stargazing with UCLA alumni and friends, Jun. 29, 2013.
• Talk to UCLA alumni and friends, "The Astronomy of Lost Civilizations", Jun. 26, 2013.
• Xinhua News Agency, "Shenzhou 10 spacecraft docks with Tiangong 1", Jun. 13, 2013.
• Forbes.com interview on close approach of asteroid 1998 QE2, May 31, 2013.
• Research seminar for Clare Boothe Luce Scholars, "Life in the Universe", May 6, 2013.
• UCLA-JPL outreach event, "Asteroid Radar Astronomy", Apr. 24, 2013.
• "Galilean Satellites" talk then stargazing, New Roads School, Santa Monica, Mar 1, 2013.
• New Scientist interview, "Dinosaur-killing space rock was a terrible twosome", Feb. 9, 2013.
• Mindshare LA - UCLA, "Origin and Distribution of Life in the Universe", Nov. 15, 2012.
• AP interview, "Saturn moon Titan may harbor ocean below surface", Jun. 28, 2012.
• Venus transit viewing on projection telescope, Palisades Park, Santa Monica, Jun. 5, 2012.
• Tarzana Medical Center, "Exploration of Mercury, Venus, Europa", May 30, 2012.
• UCLA alumni association of Japan, "Exploration of Mercury, Venus, Europa", May 22, 2012.
• Space.com interview, "Did US Radar Destroy Mars Probe?", Jan. 17, 2012.
• Radio Canada interview, "Mercure se dévoile à la sonde MESSENGER", aired Jun. 19, 2011.
• Talk to UCLA Physical Sciences Board, "Planets and Exoplanets", May 14, 2011.
• Radio Canada interview, "La planète Mercure", aired on Mar. 27, 2011.
• Science talk with DC-area UCLA alumni, "Mercury & MESSENGER", Mar. 21, 2011.
• AP interview, "Planet Mercury visible before NASA craft orbits it", Mar. 11, 2011.
• Daily Bruin interview, "Diagram measures planetary colors", Nov. 17, 2010.
• Daily Bruin interview, "Jupiter's belt mysteriously disappears", May 25, 2010.
• Current Science magazine interview, Mar. 2010.
• New Scientist interview, "Are Venus and Earth in a long-distance relationship? ", Mar. 16, 2010.
• Special Public Session at AAS meeting, "Planetary Taxonomy", Jun. 9, 2009.
• Steven J. Ostro symposium, "Binary Asteroids in the Near-Earth Population", Jun. 4, 2009.
• Cornell Club of France, "Frontiers of Solar System Exploration", May 22, 2008.
• Radio Canada interview, "Nouvelles fraîches de Mercure", aired on Feb. 3, 2008.
• Astronomie Magazine interview, "Un messager pour Mercure", Jan. 2008.
• Science World magazine interview, "Squishy Center", Sep. 2007.
• La Recherche magazine interview, "Mercure, au coeur fluide", July-Aug. 2007.
• Cornell Reunion 2007, "What makes a planet?", Jun. 9, 2007.
• National Geographic News interview, "Liquid Mercury", May 3, 2007.
• Astronomy magazine podcast, "Mercury's core", May 3, 2007.
• Museum of Science and Technology, Syracuse, NY, "What makes a planet?", Apr. 5, 2007.
• NYT interview, "Prediction Proved: Light Speeds Up an Asteroid as it Spins", Mar. 13, 2007.
• Regional Planetary Image Facility meeting, "Science Update: Ice on the Moon?", Nov. 1, 2006.
• News 10 TV interview, "The Moon's cold, but not icy", aired on Oct 19-20, 2006.
• News 10 TV interview, Asteroid impact risk, aired on Aug. 19-20, 2006.
• News 10 TV interview, "Cornell professor weighs on asteroid threat", aired on Feb. 19, 2006.
• Cornell Friends of Astronomy Banquet Dinner Talk, "Asteroids and Kuiper Belt Objects", Oct. 8, 2005.
• Teacher Workshop Presentation, "Binary Minor Planets", Jan. 17, 2005.