Click a research topic below to access an ADS library of my publications in that area.

Variable Stars

Detection and characterisation of interesting exoplanet systems.


As seen on TV.

NASA's Unexplained Files

I appeared in eight episodes across two seasons of the Discovery Science channel program 'NASA's Unexplained Files', talking about interesting planets discoveries. Click above for a short clip about Kepler-186f.

The Science Behind "The Expanse"

I joined the cast, writers and production crew of the Syfy show "The Expanse" in a live, recorded panel event at Caltech discussing some of the fantastic science behind the show.

"Under The Same Stars"

I sat down recently with writer and director Ali Alvarez, to be interviewed for her new upcoming documentary entitled "Under The Same Stars", about female astrophysicists in the US. The film is still in development.

NASA Social - TESS Mission

I was a panelist on the NASA Social TESS mission pre-launch briefing, setting the stage of the current exoplanet landscape to explain the need for a mission like TESS.

The Today Show

I was interviewed on The Today Show, a breakfast talk show in Australia, to chat about why NASA is searching for exoplanets.


I sat down with Allen Saakyan for an episode of his Simulation series to chat about all things exoplanets.

As heard on the air:

November, 2018: NASA lands on Mars - Triple M's Hot Breakfast with Eddie McGuire
August, 2018: Space, Nightclubs and Happy Places - Triple M's Hot Breakfast with Eddie McGuire
August, 2018: From Peak Crossing to NASA - 4BC Drive with Mark Braybrook
June, 2018: Topical Island Podcast: Exoplanets 2 - Wheel of Death
May, 2018: Astrophiz 58: Dr. Jessie Christiansen 'Flying with TESS to a billion planets'
March, 2018: ABC Radio National The Science Show: Exoplanet gem unearthed in Stargazing Live
December, 2017: Surely You're Joking: Jessie Christiansen and the Goldilocks retraction
July, 2017: Spacepod Episode 102: A thrilling tale of discovery with Dr. Christiansen
May, 2016: Surely You're Joking: Jessie Christiansen and the hedonic treadmill of planets
April, 2016: Spacepod Episode 42: Finding Exoplanets with Dr. Christiansen

Jessie recording a podcast

Press releases, news articles and quotes...

K2-138 coverage:
2/8/18, AAS Afternoon Astronomy Coffee Hangout: 5 Alien Worlds: Planetary system around K2-138
1/15/18, Cosmos: Music of the spheres: chain of planets rotates at “perfect fifth” intervals
1/12/18, BBC News: Citizen science bags five-planet haul
1/12/18, Gizmodo: Star System With Five Rocky Planets Discovered by Amateur Astronomers
1/11/18, Caltech press release: Citizen Scientists Discover Five-Planet System

The astronomers behind System Sounds (particularly postdoc Matt Russo) have created a beautiful visual and aural experience of our new exoplanet system. It is SO COOL. Every time one of the planets passes between us and the star, it makes a note. The tone of the note (how high or low it is) is determined by the planet's orbital period. It sounds so pretty because of the cool chain of resonances that these planets are in! Have a listen!

Other articles and quotes:

1/28/19, Gizmodo: What's the Worst Planet?
1/11/19, NBC News: Citizen scientists discover strange new world that pro astronomers missed
1/8/19, How to Tune a Star System: Alien World Complicates Harmony of Multiplanet System
1/7/19, Gizmodo: Government Shutdown Puts Damper on America's Major Astronomy Conference

9/25/18, To Find Alien Life, NASA Needs Bigger, Bolder Exoplanet-Hunting Telescopes
8/18/18, Bendigo Advertiser: Why the next generation of scientists will be women
8/15/18, The West Australian: NASA's Aussie planet hunter looks for life
8/15/18, Cosmos: Queensland looks to the skies this week
8/13/18, Ballarat Courier: Ballarat visit for the Australian planet hunter looking for other worlds
8/8/18, New NASA Planet Hunter May Find 10,000 Alien Worlds in Just Two Years
8/1/18, Gizmodo: This Solar System Catalogue Could Be Key To Finding An Earth-Like Exoplanet
7/31/18, Griffith News: Stellar Science graduates to shine at Alumni Awards
7/31/18, Gizmodo Australia: NASA's TESS Spacecraft Has Begun Its Search For Faraway Planets
5/14/18, Gizmodo: Spacecraft May Have Flown Right Through a Plume of Water on Jupiter's Moon Europa
5/3/18, CBS New York: NASA Getting Help Exploring The Universe From 'Citizen Scientists'
4/18/18, Washington Post: NASA's newest planet hunter launches successfully
3/27/18, Newsweek: Newly discovered Earth-sized planet K2-229b could reveal how Mercury was created
2/15/18, Newsweek: NASA Kepler' K2 Mission scientists discover 95 new planets beyond our solar system

8/8/17, Christian Science Monitor: Hunt for other worlds: 3,500 exoplanets and counting
6/11/17, HD 3167d: New Super-Earth Discovered around Nearby Star
4/18/17, USCS News: Planet hunting citizen scientists produce quick results for astronomers
3/1/17, Christian Science Monitor: Could the TRAPPIST-1 exoplanets harbor alien life?

10/3/16, New Scientist: Superfast spinning stars cause strangest weather in the universe
9/6/16, FiveThirtyEight: Why It's So Hard to Find the Next Earth, Even if You're Looking Right At It
7/6/16, How a Young Jupiter Acted as Both Protector and Destroyer
5/10/16, BBC News Hour: On Kepler's Discovery of 1284 New Planets
1/7/16, BBC Science News: Star clumps harbour 'sweet spot' in search for alien life


I love talking to the public about astronomy, our beautiful sky, and the exciting hunt for planets outside out solar system. I am so lucky that I get the opportunity!

Here is a blog post I wrote for the Society of Women Engineers about the difference between outreach and reaching out, and the importance of considering accessibility issues in astronomy outreach.

Here are some upcoming and recent events:

August: Guest speaker, 2019 Idaho Star Party
May: Guest speaker, College of the Canyons Star Party
April: John D. Schopp Memorial Lecture, San Diego
March: Guest speaker, Live Q&A With Fraser Cain
March: von Kármán Lecture, Pasadena
January: Host, Girl Scout Troop 5151 at Caltech Lecture and Lunar Eclipse Viewing

National Science Week, Australia, 2018
August 11th, 3pm @ Shipinn Southbank, Brisbane: "On the Road to a Billion Planets"
August 13th, 10am @ RMIT University, Melbourne: "Truth is Stranger than Science Fiction - A NASA Scientist Tells"
August 13th, 7:15pm @ Scienceworks, Melbourne: "NASA's Planet Hunters: Panel discussion with Dr Jessie Christiansen"
August 14th, 11am @ Discovery Science & Technology Centre, Bendigo: "NASA Exoplanet Scientist Talk"
August 14th, 6:15pm @ Ballarat Observatory, Ballarat: "Truth is Stranger than (Science) Fiction"
August 16th, 6:30pm @ Gold Coast City Libraries, Robina: "NASA on tour: Our incredible universe"
August 17th, 6pm @ USQ Toowoomba: USQ Winter Festival of Astronomy Main Event, "On the Road to a Billion Planets"
August 18th, 4pm @ Sir Thomas Brisbane Planetarium, Brisbane: "Truth is Stranger than (Science) Fiction"

September: Speaker, Local Group Astronomy Club, Santa Clarita CA
August: Special lecturer, USQ Winter Festival of Astronomy, Toowoomba QLD
July: Panel speaker, San Diego Comic Con
June: Speaker, Evening with the Pros, Society for Astronomical Sciences
April: Speaker, Caltech Astronomy Lecture and Stargazing Party (video recording)
March: Speaker, Riverside Astronomical Society
March: Speaker, NASA's Universe of Learning Science Briefing
February: Guest speaker, Exolife Hangout: Finding Earth 2.0
February: Guest speaker, Weekly Space Hangout: Dr. Jessie Christiansen and "Exoplanet Explorers"

December: Panel speaker, Is the Earth Special?
December: Podcast guest, Surely You're Joking!
October: Caltech Astronomy presents Sidewalk Astronomy in Old Town Pasadena
August: Panel speaker, The Official Star Trek 2017 Convention
August: Telescope captain, Caltech Astronomy Lecture and Stargazing Party
July: Podcast guest, Spacepod
April: Speaker, Society for Astronomical Sciences
February: Speaker, Los Angeles Astronomical Society

October: Telescope captain, Caltech Astronomy Lecture and Stargazing Party
August: Speaker, NASA's Universe of Learning Science Briefing
August: Speaker, Caltech Astronomy Lecture and Stargazing Party
June: Speaker, Astronomy on Tap
June: Speaker, AAS 228 Student Education and Outreach Event
May: Podcast guest, Surely You're Joking!
April: Podcast guest, Spacepod

PS. The Caltech astronomy department puts on regular events - you should check them out!