RYO SASAKI — ASTROPHYSICIST, PH.D.
Ryo Sasaki
Ph.D. in Astrophysics | Head of the Devin Promotion Dept., DeNA AI Link / Author / Podcaster
SERVICES
What I do
Working across research, business, and media to support companies and individuals taking on new challenges.
SELECTED WORK — AI & DATA
AI & Data Work
Built on the data-analysis skills honed in astrophysics research, I help companies adopt AI and streamline how they work.
Enterprise AI consulting
Delivered AI-driven consulting for large enterprises at ARISE analytics and DeNA (as Head of the AI Link Devin Promotion Dept.).
AI workflow advisory
Advising a marketing company on streamlining their operations with Claude Cowork and Claude Code.
Making my wife AI-native
An ongoing hands-on project to dramatically streamline my wife's work with AI, with progress shared on the podcast. Listen to the episode
PODCAST
Ryo Sasaki's Space Talk
“Ten minutes of space a day” — a quick daily dose of the latest in astronomy and the space business.
Official collaborations: JAXA official collaboration episode / Sony “STARSPHERE” official collaboration episode
Past sponsors & collaborations (JAXA, Sony, Deloitte, Asahi Shimbun, and more)
JAXA (Japan Aerospace Exploration Agency) / Deloitte Tohmatsu / Pale Blue Inc. / SPACE COTAN Inc. / Blue Abyss Ltd. / The Asahi Shimbun Company / Sony Corporation / SPACETIDE / WARPSPACE Inc. / amulapo Inc. / Space Beauty Organization / Yspace Inc. / sorano me Inc. / Kanematsu Corporation / Space Data Inc., and more
TALKS & WRITING
Talks & Writing
I write primarily through book publishing. I have published two books on space and two on AI, and I have contributed to a number of outlets including Weekly Playboy and Sorabatake. My editing and writing career began in 2016, when, as a graduate student, I joined the launch of the highway-bus travel media "Bus Trip" as an assistant director.
Space Business: A Crash Course — Understand How It Makes Money in One Hour
An accessible guide to how the space business works. It explains, in beginner-friendly terms and alongside the latest trends, how the space industry actually functions as a business. Details & buy
Supercharge Your Marketing with AI: A Business Guide to the ChatGPT API
Published by Kodansha on March 28, 2025, "Supercharge Your Marketing with AI: A Business Guide to the ChatGPT API" explains, from the basics, how to move beyond chatting with ChatGPT and build it into your workflows. It was co-authored with team members at DeNA Co., Ltd.
Space Really Is Amazing
Published in January 2025 by SB Shinsho, "Space Really Is Amazing" reached No. 1 in its category during Amazon pre-orders and earned a Best Seller label, with a second printing just nine days after release. About half of the book is built on material from my four-year-running podcast "Ryo Sasaki's Space Talk," with newly written content layered on top. The most warmly received parts are "Chapter 1: Amazing Explosions" and the afterword. The book draws on my own research experience and covers the very latest papers. Details & buy
Running "Fungible Analyst," a web3 x data science media outlet
I run a web media outlet exploring how data scientists can thrive in the web3 era. It compiles know-how for analyzing data recorded on the blockchain and the insights that can be drawn from it.
Biography (NASA · RIKEN → DeNA)
PROFILE
- Born 1994 · age 32 (Ryo Sasaki)
Now
- DeNA Co., Ltd. — Head of the AI Link Devin Promotion Department
- Advisory work centered on AI and the space industry
- Author (two space books and two AI books published; multiple serialized columns)
- Host of the podcasts “Ryo Sasaki's Space Talk” and “The Data Analyst Next Door”
- Part-time lecturer, The University of Electro-Communications (data science)
- Part-time lecturer, Chuo University (data science)
- Joint researcher, Astrophysics Lab, Faculty of Science and Engineering, Chuo University
Previously
- 2021/04 – 2022/08Data Scientist at ARISE analytics. Led churn analysis and marketing/management support across KDDI's telecom services (au, UQ mobile, povo).
- 2021/03Completed Ph.D., Department of Physics, Graduate School of Science and Engineering, Chuo University (doctoral degree conferred)
- 2018/07 – 2019/02Visiting Researcher, NASA Goddard Space Flight Center / University of Maryland, Baltimore County (selected for the JSPS Overseas Challenge Program for Young Researchers)
- 2018/04 – 2021/03Junior Research Associate, RIKEN
Media & Conference Appearances
- 2026/05Speaker at Qiita Conference 2026
- 2026/04Speaker at Cognition Merge Tokyo
- 2026/04Speaker at NexTech Week 2026 Spring, "Why AI-Driven Development Now? The Implementation Points That Transform Engineering Organizations"
- 2026/04Speaker at Findy, "The Frontier of AI-Driven Development: How Context Engineering Is Changing the Development Process — Practical Wisdom for Balancing Speed and Quality"
- 2026/04Guest on YouTube "NMS Studio" (Naokimanshow's second channel)
- 2026/03Speaker at DeNA AI DAY 2026, "AI x Engineering: Transformation Achieved with Devin and Solution Deployment"
- 2026/03Speaker at Devin / Windsurf Meetup Tokyo
- 2026/03Opening act for Japan Podcast Festival 2026
- 2026/02Guest on Qiita FM (three-part series)
- 2026/02Guest on J-WAVE "ON THE EDGE"
- 2026/01Speaker at Qiita AI Summit, "Rethinking the Engineering Organization in the Age of AI"
- 2026/01Guest on Joqr (Bunka Hoso) "Atsushi Tamura's News CLUB"
- 2026/01Speaker at Generative AI EXPO Nagoya
- 2025/11Guest on ABEMA "Naokiman's Urban Legend Wide Show Season 2"
- 2025/05Guest on TV Asahi "Kyoccorohee"
- 2025/03Speaker at Book & Beer (B&B), "Let's Talk About the Future of Space and Astronomy"
- 2025/02Guest speaker at a talk event for the Takenaka Corporation exhibition "Tatemono Megane, Machi Megane: From Space to Insects"
- 2025/02Moderator at DeNA recruiting event "Delight Biz x Analytics Night #6"
- 2025/01Guest on Lucky FM Ibaraki Broadcasting "Diversity News"
- 2025/01Guest on TBS Radio "Friday Voice Log"
- 2025/01Speaker at the Web & Social Paper Reading Meetup
- 2024/12Moderator at DeNA recruiting event "Delight Biz x Analytics Night #5"
- 2024/10Moderator at DeNA recruiting event "Delight Biz x Analytics Night #4"
- 2024/04"Ryo Sasaki's Space Talk" featured in Croissant magazine's "Editors' Recommended Audio Content"
- 2024/04Wrote "What Makes XRISM, the Next-Generation Telescope Unraveling the Origins of the Universe, So Amazing!" for Weekly Playboy
- 2024/03Speaker at PODCAST FREAKS 2024
- 2024/03Guest commentator on the Kairos rocket on RKB Radio "Hitoshi Nakatani & Fumiyo Shimoda's Yonaoshido"
- 2024/02Moderator at DeNA recruiting event "Delight Biz x Analytics Night #3 With BrainPad"
- 2024/02Interview featured in Weekly Playboy, "JAXA Achieves Japan's First Lunar Landing! Why the SLIM Probe Was Able to Realize the World's Most Precise Landing"
- 2024/02Published the Shueisha "Yomitai" discussion article "[Special Dialogue: Kuria Usui x Ryo Sasaki] JAXA's SLIM Achieves the World's First Pinpoint Lunar Landing!"
- 2024/02Guest on RKB Radio "Ryusuke Tabata Grooooow Up"
- 2024/01Speaker at BrainPad recruiting event "Data Science X Meetup #1 ~Astrophysics~"
- 2024/01Wrote "Origami Will Change the World!!!" for Weekly Playboy
- 2024/01Lecturer for Chuo University's "AI & Data Science Tools I"
- 2023/11Launched the Shueisha "Yomitai" column "A Cosmic Story to Go With Your Drink"
- 2023/11Produced a Podcast PR program for the "NinjaSat" satellite launched by RIKEN's Tamagawa High-Energy Astrophysics Laboratory
- 2023/09Explained the scientific achievements of the James Webb Space Telescope for Weekly Playboy (Shueisha)
- 2023/08Guest on Nippon Broadcasting System "Nao Hashimoto & Mamiko Suzuki's CROSSPOD"
- 2023/07Guest on YouTube "Atsuto Uchida's SDGs School" (Part 1)
- 2023/07Guest on YouTube "Atsuto Uchida's SDGs School" (Part 2)
- 2023/04Panel discussion moderator at the international conference DeSci Conference Tokyo 2023
- 2023/04Guest on MBS Radio "Masayoshi Oishi's Young Town"
- 2023/03Speaker at PODCAST FREAKS 2023
- 2022/10Official tie-up project with JAXA commemorating the Epsilon rocket launch
- 2022/09Guest speaker at "Podcast Meeting 2022" hosted by Asahi Shimbun Podcast
- 2022/08Official tie-up project with Sony's space business "STAR SPHERE"
- 2022/07Selected as a media partner for "SPACETIDE 2022," one of Asia's largest space business conferences
- 2022/05Lecturer for Chuo University's "Introduction to AI & Data Science"
- 2022/033rd Japan Podcast Awards ceremony (Winner of the Spotify NEXT Creator Award)
- 2022/02Guest on the radio program "Parkside Square" (FM Tachikawa)
- 2021/12Contributed an article to "Mirror," published by the Space Cosmetology Organization
- 2021/12Featured on the Apple Podcasts top banner
- 2021/09Guest at the International Podcast Day event "Tsukiichi – International Podcast's Day !!"
- 2021/09Collaboration project with the space-themed YouTube channel "Sky Sanpei"
- 2021/07Official tie-up project with the Deloitte Tohmatsu Space Business Division
- 2021/07Interview featured in Chuo University's PR magazine "HAKUMON CHUO"
Publications (6)
- 2024/07 : 10th International Conference of Computational Social Science, "Balancing Act: The Dual Pathway of Exploitation and Exploration in Live Streaming" (reviewed), accepted
- Weekly Playboy — "XRISM: Why This Next-Generation Telescope Unraveling the Origins of the Universe Is So Remarkable" (contribution)
- Weekly Playboy — "Origami Will Change the World" (contribution)
- Weekly Playboy front-color feature — "From a Star's Birth to Its Death" (contribution)
- Weekly Playboy front-color feature — "The Breathtaking Celestial Views Captured by the Webb Telescope" (contribution)
- Ryo Sasaki et al. 2021, "The RS CVn–type Star GT Mus Shows Most Energetic X-Ray Flares Throughout the 2010s", ApJ, 910, 25 (peer-reviewed)
Other writing & projects
- DeNA Analytics Blog: "The Densification Power-law for Evaluating How Networks Evolve Over Time"
- DeNA Analytics Blog: "How I Came to Fully Understand PageRank in Network Science"
- January 2024: Wrote "Origami Will Change the World!!!" for Weekly Playboy
- September 2022 and September 2023: Covered the science results of the James Webb Space Telescope for Weekly Playboy (Shueisha)
- Assistant director and writer for the highway-bus travel media "Bus Trip" (reached 800,000 monthly page views)
- Sorabatake: "A Thorough Guide to 'Space Weather': Why It Could Cause Trillions of Yen in Economic Losses"
- Sorabatake: "What Is 5G? A Thorough Explanation from the Basics"
- Sorabatake: "3D Printing, Water Propulsion, Inter-satellite Optical Communication... 7 Key Technologies Transforming the Space Business"
- Sorabatake: "What Is Starlink, SpaceX's Plan to Deliver Internet Worldwide!?"
- sorae: "The Unusual Auroras Observed on Saturn May Have Been Generated by an Unknown Mechanism!?"
- sorae: "RIKEN's Ultra-small X-ray Satellite 'NinjaSat' Heads to Space on SpaceX's Falcon 9 Rocket"
FAQ
Frequently asked questions
What can I hire you for?
What does the AI advisory actually involve?
Can individuals or startups work with you too?
Can we work together online? What areas do you cover?
Are podcast tie-ups or sponsorships available?
How do I request a talk, interview, or appearance?
How can I contact you, and how soon will you reply?
CONTACT
Work with me
For AI advisory, podcast production, or speaking & writing, feel free to reach out anytime via DM on X or Instagram.
Send a message
SENT VIA EXTERNAL FORM SERVICE (you'll see a confirmation after sending)