A few current items, including some press coverage of my work and some of my presentations to non-specialist audiences.
- Pluto, Planets, and Resonances, The Milky Way Podcast (spotify), Dec 7, 2025
- A substellar flyby that may have shaped the orbits of the giant planets
Universe Today, Nov 12, 2025 - LiveScience, Jan 19, 2025
Universe Today, Dec 10, 2024
Newsweek, Jan 21, 2025 - Keeping Time: Holidays and The History of Calendars, UA News, December 2024
- China puts moon lander on the far side of the moon, Radio Interview, The World, June 2024
- Earth’s quasi-satellite (469219) Kamo`oalewa
UA News, April 2024
Science, April 2024
New Scientist, April 2024
Fox Weather, May 2024
Earth.com, October 24 2023
Springer Nature Astronomy Community – Behind the Paper, October 2023
UA News, October 2023
UA News, November 2021
New York Times, November 2021 - Why aren’t all orbits circular? LiveScience.com, March 2024
- The science of leap day: How it works, why we do it, and when we skip it, UANews, February 2024
- A Star With Six Planets That Orbit Perfectly In Sync — New York Times, November 29 2023
- Asian Pacific Islander Desi American Heritage Month Faculty Spotlight: Dr. Renu Malhotra, April 2023
- On Pluto’s weird orbital dynamics
Pluto orbits in elegant arrangement with the giant planets, The Science Breaker, May 2023
Live interview with Fraser Cain/Universe Today, April 2022
Space.com, April 2022
QnA with author, PNAS, April 2022 - Data art
The Stormy Seas of Chaos in the Three Body Problem — winner 2nd place in The Art of Planetary Science 2023 (Data art) - On the Faint Young Sun Paradox
Quanta Magazine, January 2022 - Hunting for a distant planet in the solar system
Last Seen (podcast), WBUR-Boston (NPR Affiliate), February 2022
Searching for Planet 9 (movie on vimeo), December 2022
A film by Florence Tran written with Cécile Dumas - Planet Nine, revised again
National Geographic, August 2021 - Planetary Migration: a brief history of the solar system’s evolution
IIT-Tech Ambit, June 2021 - Earth’s Trojan Asteroids
Sky and Telescope, Feb 2021 - The Great Conjunction of December 2020
NPR – All Things Considered, December 2020
New York Times, December 2020
KPNX TV, Phoenix AZ, December 2020 - LIVE IIT Delhi Alumni Faculty Day Oct 4th 2020
- Solar system planet migration
The Economist, December 2019
Babbage from Economist Radio, December 2019 - India’s Mars Orbiter Mission
Ars Technica, October 2019 - Cutting-edge science research and its impact on primary schoolchildren’s scientific inquiry, Summer 2019
- Planet Nine/X, revised
Le Figaro, France, March 2019 - Pluto and Charon’s craters
PBS Nova, February 2019 - On the Kuiper Belt and New Horizons’ flyby of Ultima Thule
New York Times, December 2018 - The Faint Young Sun/Warm Young Earth Paradox: Did our ancient Sun go on a diet?
Science, December 2018 - An extra-solar asteroid co-orbiting with Jupiter?
Sky and Telescope, May 2018 - A curious warp of the mid-plane of the Kuiper Belt
UA News, June 2017
New Scientist, June 2017
Arizona Daily Star, June 2017
Newsweek, June 2017
Universe Today, June 2017
BloombergView had some sci-fi fun with this work! (June 2017) - Doubts about Planet Nine
Nature, June 2017
Sky & Telescope, June 2017 - A short talk about Planet Nine at TEDx Portland on 2017-April-15 at 10 a.m.
Live-streaming at www.oregonlive.com
YouTube link: https://www.youtube.com/watch?v=MptrypvBTag - Search for Earth’s Trojan Asteroids
Arizona Daily Star, February 2017
UA News, February 2017
Arizona Science, Episode 64, January 2017 (podcast)
The Daily Wildcat, January 2017 - More evidence for ninth planet roaming Solar System’s outer fringes
Los Angeles Times, 22 October 2016
The Guardian, 19 October 2016
Science Daily, 19 October 2016
Science News for Students, August 1, 2016
The Planetary Society, March 8, 2016
FiveThirtyEight, January 22, 2016 - Seasonal Variation of Impacts on Mars
Travelers In The Night, show by Dr. Al Grauer at www.spreaker.com - An Update on Planet Nine
Susanna Kohler, AAS-NOVA, 24 June 2016 - On the hunt for a mystery planet
Alexandra Witze, Nature, 15 March 2016 - Galaxy may teem with planets
Arizona Daily Star, January 27, 2016 - Exploring our Solar System’s Past Through Pluto (podcast)
Arizona Science, Episode 10, January 2016 - Pluto, the Kuiper belt and the Early History of the Solar System (youtube)
SETI Institute Talks, July 2015 - How often do Earth and Mars encounter Oort Cloud comets,
such as Mars’ encounter with Comet Siding Spring on October 19, 2014?
Click here for the answer (PDF)
December 2014 - Weird orbit puzzles, fascinates astronomers
Arizona Daily Star, July 2015 - “Baby photos of a scaled-up solar system”
UA News, November 2014 - “A distant planet may lurk far beyond Neptune”
Science News, November 2014 - “Kuiper Belt Missions Could Reveal the Solar System’s Origins”
Scientific American, October 2014 - “Structure and Evolution of the Solar System” (QuickTime)
Presentation at the UA Osher Lifelong Learning Institute, October 2014 - “Girls Need their Space”
Flyer (PDF) Presentation (PDF)
Flandrau Planetarium, March 2014 - “Our Solar System: It All Began in Chaos”
National Geographic Magazine, July 2013 - NASA Solar System Exploration:People:Profile
July 2013 - “On Excellence” (PDF)
Keynote speech for UA College of Science Honors Convocation, October 2012 - “Slow-moving rocks provide better odds that life crashed to Earth from space”
UA News, September 2012 - “The Early History of the Solar System” (QuickTime)
Biosphere 2, October 2011 - What Would Happen If Earth and Mars Switched Places?
Scientific American, blog by George Musser, June 2011 - Women In Planetary Science Blog-“51 Women in Planetary Science”
interview by Kathryn Gardner-Vandy, April 2011 - “The Solar system in Time” (QuickTime)
Golden Jubilee Conference on Women in Science & Technology, IIT-Delhi, March 2011 - “Migrating Planets” (QuickTime)
LPL Evening Lecture, September 2009 - “On the importance of a few dwarf planets” (QuickTime)
AAS Meeting, June 2009 - “Planetary scattering and migration: lessons from Pluto” (QuickTime)
The Great Planet Debate, Baltimore, MD, August 2008