Exoplanet Systems
Detection and characterisation of interesting exoplanet systems.
Click a research topic below to access an ADS library of my publications in that area.
Detection and characterisation of interesting exoplanet systems.
Derivation of planet occurrence rates from the NASA Kepler mission.
Generation and analysis of planet and planet candidate catalogues.
Development of techniques and software to produce, calibrate, and classify light curves.
Measurement and analysis of exoplanet atmosphere compositions.
Detection and characterisation of interesting exoplanet systems.
I am committed to increasing diversity and support for under-represented minorities in our community, especially women in STEAM.
Here are some of the mentorship and community support efforts I am or have been involved in:
Mentoring@EPSC - Mentor
Caltech Physics, Maths and Astronomy DEIO Committee - Member
NASA ExoExplorers - Steering Committee Member
Caltech Gender Minorities and Women in Physics, Maths and Astronomy (WiPMA) - Faculty Advisor
Letters to a Pre-Scientist - STEM Professional
Astronomy Allies - Ally
NASA GSFC Exoplanet Group - Invited Career Talk
Girls in STEAM Symposium 2020 - Spotlight Speaker
NASA Community College Aerospace Scholars - Lecturer
Caltech Women Mentoring Women - Pod Leader
New York Academy of Sciences 1000 Girls, 1000 Futures - Mentor
As seen on TV.
I was interviewed on Al Jazeera's daily English newscast, The Stream, about the first images released by JWST. Click for the full segment!
I have appeared in one season and filmed for a second season of Science Channel's How the Universe Works. I talk about wild planets, our solar system, white dwarfs, how disasters shaped Earth, and the Voyager missions!
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.
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.
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.
I filmed a segment with CBS News about our citizen science project, Exoplanet Explorers, and some of the amazing discoveries citizen scientists have been making.
I was interviewed on The Today Show, a breakfast talk show in Australia, to chat about why NASA is searching for exoplanets.
I was featured in a video series called "Women of Discovery", produced by Active Galactic Videos out of Steward Observatory at the University of Arizona.
Griffith University produced this profile of me as the 2018 Outstanding Young Alumnus of the Year.
As heard on the air:
July, 2024, Planetary Radio: Fifty-five hundred worlds and counting: The astonishing diversity of exoplanets
April, 2024, The Economist's Babbage Podcast: What We Can Learn From Exoplanets
February, 2024, ABC Radio National The Science Show: Exoplanets help answer big questions
March, 2023, A Rational Fear
February, 2023: Archiving Exoplanets with Jessie Christiansen
November, 2022: BBC's The Infinite Monkey Cage: Hunting for Exoplanets
March, 2022: NPR's Science Friday: Over 5,000 Exoplanets Have Now Been Discovered
July, 2021: Swiss Public Radio: Pirouetting in Space
July, 2021: NASA's Curious Universe: Let's Go Planet-Hunting!
July, 2020: Exoplanets: The Search for Another Earth - Audible Original Podcast
May, 2020: NASA & SpaceX - Triple M's Hot Breakfast with Eddie McGuire
June, 2019: NPR: Astronomers Worry That Elon Musk's New Satellites Will Ruin The View
April, 2019: NPR: Young Astronomer Uses Artificial Intelligence To Discover 2 Exoplanets
March, 2019: ABC Radio National The Science Show: Hunt for exoplanets continues after Kepler
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
Press releases, news articles and quotes...
5,000 Exoplanets at the NASA Exoplanet Archive
In March, 2022, the NASA Exoplanet Archive reached 5,000 confirmed exoplanets! Here is a spectacular visualization of the milestone made by the folks at System Sounds.
And here is some press about the milestone. We made NPR Science Friday's Thanksgiving holiday special of 'science we are thankful for'!
3/21/22, NASA: Cosmic Milestone: NASA Confirms 5,000 Exoplanets
3/21/22, Caltech: Exoplanet Count Tops 5,000
3/22/22, The Atlantic: We've Found 5,000 Exoplanets and We're Still Alone
3/25/22, NPR's Science Friday: Over 5,000 Exoplanets Have Now Been Discovered"
Dinosaurs in SPAAAAAAAAACE coverage
Did you know that dinosaurs lived on the other side of the galaxy? Here's a short animation I made showing how the solar system orbits around the center of the galaxy, and where the Earth was when some of your favourite dinosaurs reigned!
And here is some press about the animation:
7/14/20, Buzzfeed: 20 Fascinating Things I Learned From Twitter That I Can't Believe Never Came Up In School
11/13/19, CNN: Earth Was On The Other Side Of the Galaxy When Dinosaurs Reigned
11/9/19, MSN: Mind-blower: NASA says dinosaurs lived on the other side of the galaxy
11/8/19, IFLScience: Dinosaurs Lived On The Other Side Of The Galaxy, NASA Astrophysicist Demonstrates
11/7/19, Business Insider: A NASA scientist's incredible animation shows how dinosaurs roamed the Earth on the other side of the Milky Way galaxy
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 folks at System Sounds 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:
2024
10/15/24, New York Times, A Distant Planet May Host a Moon That’s Spewing a Volcanic Cloud
10/3/24, Astroomy.com, Discovery of a tiny exoplanet sheds new light on a very old star
6/26/24, New Scientist, Why Our Location In The Milky Way Is Perfect For Finding Alien Life
6/1/24, BBC, The mysterious pairs of planets we still can't explain
3/12/24, BBC, Where we might find aliens in the next decade
1/24/24, Quanta Magazine, The Best Neighborhoods for Starting a Life in the Galaxy
2023
12/7/23, Astronomy.com, Exoplanet hunters: What it takes to find needles in a cosmic haystack
11/27/23, Wired, Dr. Jessie Christiansen Wants to Help You Discover the Next Exoplanet
11/17/23, Space.com, Some exoplanets are shrinking. Here's why
11/15/23, NASA: NASA Data Reveals Possible Reason Some Exoplanets Are Shrinking
11/13/23, MIT Technology Review: The Biggest Questions: Are we alone in the universe?
9/15/23, Axios: Alien atmospheres are helping scientists search for life
5/8/23, New York Times, Webb Telescope Finds a Star Cloaked in 3 Rings of Ruined Worlds
5/4/23, Business Wire, 2023 International Day of Light celebrated with “Possible Through Light” campaign
3/13/23, Astronomy.com, Super-Earths and the quest to understand our place in the cosmos
3/7/23, Popular Science, Sorry, Star Trek fans, the real planet Vulcan doesn’t exist
2/21/23, Space News, Envisioning the next generation of space telescopes
2022
8/30/22, Nature: Webb telescope spots CO2 on exoplanet for first time: what it means for finding alien life
8/16/22, Axios: A new chapter in the search for alien planets
8/16/22, BBC Sky at Night magazine: 5,000 Exoplanets... And Counting?
7/14/22, Inverse.com: 12 Scientists React to the Webb Telescope's First Images
6/13/22, Nature: Mega-map of Milky Way adds depth to stars’ motions
4/13/22, Nature: China is Hatching a Plan to Find Earth 2.0
1/13/22, Scientific American: Astronomers Have Found Another Possible ‘Exomoon’ beyond Our Solar System
2021
12/22/21, ScienceLine: Which worlds might be watching us?
12/2/21, Inverse.com: This Hellish Planet Could Come Equipped With "Lava Oceans”
12/1/21, Caltech: Exoplanet Bonanza
11/1/21, Daily Beast: How 'Talkative' Stars Could be Telling on Hidden Planets
8/11/21, The Atlantic: Faraway Planets Don’t Seem So Distant Anymore
5/11/21, Spaceflight Insider: Exoplanets and their characterization the focus of STScI workshop
3/26/21, Space.com: NASA's TESS planet hunter spied 2,200 candidate worlds in its first 2 years
2/20/21, Universe Today: Just Some of the Planets That TESS Has Found Nearby
2/12/21, Science Daily: NASA's TESS discovers new worlds in a river of young stars
2020
11/5/20, New Scientist: There could be around 5 billion habitable planets in the Milky Way
7/13/20, Phys.Org: Artificial intelligence predicts which planetary systems will survive
6/25/20, Axios: Newfound exoplanets aren't too far from Earth
4/20/20, NASA: The Weirdest Solar System We've Found So Far? You May Be In It
1/21/20, Axios: Astronomy's existential crisis
2019
12/23/19, Business Insider: Astronomers found 6 unusual new planets
12/16/19, Space.com: Another Day, Another Exoplanet, and Scientists Just Can't Keep Up
11/19/19, NASA: Why Do Scientists Search for Exoplanets? Here Are 7 Reasons
9/11/19, Axios: Water vapor detected in the atmosphere of a super-Earth
8/28/19, NASA: Is Earth an Oddball?
8/4/19, New Scientist: Two planets orbiting a nearby star could have oceans and maybe life
8/2/19, Scientific American: One Search to (Almost) Rule Them All: Hundreds of Hidden Planets Found in Kepler Data
6/5/19, Washington Post: Elon Musk's satellites threaten to disrupt the night sky for all of us
5/28/19, National Geographic: 18 Earth-size planets found in our galaxy—all hiding in plain sight
5/27/19, Forbes: SpaceX's Starlink Could Change The Night Sky Forever, And Astronomers Are Not Happy
5/23/19, Gizmodo: Astronomers Spy Three Comets Circling a Nearby Star
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, Space.com: 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
2018
8/10/18, Simulation: Dr Jessie Christiansen - The Exoplanet Gatekeeper
9/25/18, Space.com: 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, Space.com: 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
2017
8/8/17, Christian Science Monitor: Hunt for other worlds: 3,500 exoplanets and counting
6/11/17, Sci-News.com: 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?
2016
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, Smithsonian.com: 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