Astro Teller

Teller was born in Cambridge, England, and grew up mainly in Evanston, Illinois. His grandfathers were physicist Edward Teller and economist Gérard Debreu. He received a Stanford BS in computer science in 1992 and an MS in symbolic and heuristic computation in 1993.⁠[2][3]

Teller and Christopher Pacione collaborated on Jedermann, which turns faces and information into digital portraits. His writing site describes the online work as a continuation of a 1997 exhibition at Pittsburgh’s Hewlett Gallery, connecting computation with storytelling and visual expression.⁠[4]

Vintage published Exegesis on August 19, 1997. The novel uses email correspondence and centers on a computer program, Edgar. In the publisher’s interview, Teller explained that the format places readers within a program’s text-bound experience; he did not present the novel as a precise technological forecast.⁠[5]

In 1998–1999 he co-founded and led technology/design consultancy and incubator Sandbox Advanced Development. Teller later recalled weighing writing, an academic appointment and entrepreneurship around the end of his PhD. Strong working relationships with collaborators persuaded him to start a business, marking his move from academic training toward applied technology.⁠[3][2]

Carnegie Mellon records Teller’s PhD in computer science in December 1998, supervised by Manuela Veloso. His thesis, Algorithm Evolution with Internal Reinforcement for Signal Understanding, investigated genetic programming, algorithm evolution and signal classification, using internal reinforcement to improve evolving programs. He was also a Hertz Fellow.⁠[6][7]

In 1999 Teller co-founded BodyMedia and served as its founding CEO until 2007. The Pittsburgh company developed wearable body-monitoring devices combining sensors with data analysis to track information such as physical activity. This venture preceded his work at X.⁠[7][8]

Other early ventures included intellectual-property holding company Zivio, which he co-founded and chaired in 2003–2010, and Cerebellum Capital, which he co-founded and led before joining X and which applied computational methods to investment management. Published timelines differ on the start of his Cerebellum tenure: his website lists 2008, while the Hertz Foundation lists 2007. Both end it in 2010.⁠[3][7]

Teller co-founded X in 2010 and subsequently became its leader, using the title Captain of Moonshots. In a 2018 oral history, he said he took over in the organization’s second year and chose the title after discussing it with Sergey Brin. His remit was to nurture ambitious technologies that could become new businesses.⁠[3][2]

On April 30, 2013, Jawbone announced its acquisition of BodyMedia to expand its wearable technology capabilities, with BodyMedia employees joining the company. The announcement did not disclose a price. BodyMedia’s CEO at the time was Christine Robins; Teller’s founding role was an earlier position.⁠[8]

Diversion Books published Sacred Cows: The Truth About Divorce and Marriage, co-written with Danielle Teller, on July 1, 2014. The nonfiction book examines social assumptions about marriage and divorce and invites readers to reconsider conventional judgments. It represents the authors’ writing on social questions.⁠[9]

In July 2016 Teller described selecting projects at the intersection of a major problem, a radical solution and breakthrough technology. Small teams should test the hardest technical or economic assumptions first, expand investment after reducing major risks and establish stopping criteria. He cited Foghorn, a seawater-to-fuel effort halted despite technical progress because its cost outlook was inadequate.⁠[10]

Teller received the 2017 Edison Achievement Award. The official recipient list identifies him with Google X. The recognition concerns an individual’s contribution to innovation and is distinct from an Edison product award.⁠[11]

On July 11, 2018, Teller announced that drone-delivery project Wing and balloon-connectivity project Loon had graduated from X into separately operated businesses within Alphabet. Graduation marked a move from early development toward scaling; it did not mean departure from Alphabet or proof of sustained profitability.⁠[12]

In February 2020 Makani announced that Alphabet was ending its energy-kite effort. The team had progressed to a 600-kilowatt system and an offshore demonstration, but its official account described commercialization as longer and riskier than anticipated. The case shows that technical demonstrations did not assure a durable business for an X-incubated project.⁠[13]

Loon ended operations in 2021 after work on emergency connectivity, balloon navigation and commercial service in Kenya. X’s retrospective attributes the closure to the difficulty of establishing a sustainable business and describes optical-communications knowledge continuing in projects such as Taara. The development model Teller promotes thus includes graduation, closure and technology transfer.⁠[14]

On May 9, 2025, Teller delivered Rochester Institute of Technology’s commencement keynote and received an honorary Doctor of Science. RIT’s report emphasized his encouragement of curiosity, a beginner’s mindset and exploratory risk. The honorary degree is separate from his research doctorate at Carnegie Mellon in 1998.⁠[15][16]

On August 3, 2026, Teller described X’s relationship with independent fund Series X Capital, led by Gideon Yu. The fund exclusively backs X spinouts with capital and operating support, while Alphabet retains significant ownership stakes. He presented the arrangement as a way to secure industry-appropriate resources while keeping X focused on early innovation.⁠[17]

In a Moonshots Live interview recorded September 25 and released October 5, Teller estimated that roughly 2,000 coded projects over about 16 years produced 35–50 graduates, depending on definitions. He said development cost per graduate had fallen to roughly one-third of its earlier level. He highlighted water, energy and education and argued that people remained necessary for choosing problems and social implementation. These were his own estimates and judgments.⁠[18]

Alongside Exegesis and Sacred Cows, Teller’s writing site lists the novel Among These Savage Thoughts. As of October 2026, his website continued to identify him as X’s leader and a board member of Wing and Intrinsic. He also participated in MasterClass’s Breakthrough Innovation Strategy: From Bold Ideas to Business Impact course, sharing X’s practices.⁠[4][3][19]