Scientific context: Exoplanet science is one of the most dynamic and vibrant fields in modern astrophysics. With more than 5500 exoplanets discovered to date, we are beginning to understand statistical trends in the population and unravel the diversity of other worlds. State-of-the-art instruments on ground- and space-based telescopes provide access to the bulk properties of the exoplanets and shed light on their atmospheric compositions. Despite impressive progress in the field, one of the long-term goals of exoplanet science, that is the direct detection and atmospheric characterization of temperate terrestrial exoplanets similar to Earth, is out of reach for the current generation of instruments. Only the next generation of ground-based extremely large telescopes with 30-40 m primary mirrors and dedicated space missions will be powerful enough to address this goal. 

The LIFE mission: One of these missions is the Large Interferometer For Exoplanets (LIFE). LIFE is a space-based nulling interferometer that will investigate the atmospheric properties of hundreds of exoplanets including dozens similar to Earth. LIFE will operate at mid-infrared wavelengths and provide access to atmospheric absorption bands of many molecular species including numerous so-called atmospheric biosignatures. Rooted at ETH Zurich in Switzerland, the LIFE project has supporters and contributors worldwide and the science of LIFE that has been recognized as a candidate topic for a future L-class mission in the Science Program of the European Space Agency.

In this PhD project, you will work within the LIFE science team at ETH Zurich and contribute to the further development of the main science case of LIFE; that is, the atmospheric characterization of temperate terrestrial exoplanets. Using state-of-the-art simulation techniques, such as atmospheric retrieval frameworks, atmospheric and photo-chemistry models, atmospheric loss models, and the LIFE instrument simulator, you will carry out new analyses that lead to a better understanding of the diagnostic power of the LIFE mission. Crucially, you results will inform some of the technical aspects of the LIFE mission such as spectral resolution, overall instrument throughput and required wavelength coverage.

• have a MSc degree in physics or similar discipline by the starting date
• be eager to pursue simulation-based research within a highly collaborative environment
• be passionate about atmospheric physics, space sciences, and problem solving 
• have a high proficiency in English and be a good communicator and team player
• have very good to excellent computer and programming skills

We offer a dynamic, challenging role within an inspiring environment at a world-renowned university. Career development is central to our culture, and we’re committed to supporting your professional growth. PhD students at ETH Zurich earn competitive salaries and are eligible for both social security and retirement benefits (the current annual gross salary starts at CHF 60’800 in the first year and goes up to CHF 67’500 in the third and fourth year). PhD positions are funded for four years. Funding for attending international conferences is available and potential publication costs will be covered.  

ETH Zurich is regularly rated as the best university in continental Europe and Zurich itself is one of the most attractive cities to live in worldwide. Many people at ETH Zurich, and within our research group, have an international background. English is the common language in our research group. 

Our group actively participates in the ETH Centre for Origin and Prevalence of Life (COPL) and the National Centre of Competence in Research PlanetS providing group members with ample opportunity for networking in interdisciplinary setting.

In line with our values, ETH Zurich encourages an inclusive culture. We promote equality of opportunity, value diversity and nurture a working and learning environment in which the rights and dignity of all our staff and students are respected. Visit our Equal Opportunities and Diversity website to find out how we ensure a fair and open environment that allows everyone to grow and flourish.

Complete applications received by November 15, 2024 will receive full consideration. The position is open to candidates from all countries. The starting date is negotiable, but the position is available immediately. 

We look forward to receiving your application, as a single PDF, including

• curriculum vitae
• a brief motivational statement of research interests and experience (3 pages max)
• contact information for at least two referees
• MSc degree certificate (if already available) 
• a list of all university courses taken and transcripts of grades obtained

Please note that we exclusively accept applications submitted through our online application portal. Applications via email or postal services will not be considered.

Further information about our research group can be found on our website. Questions regarding the position should be directed to Dr. Lia Aleksandrovic-Sartori, e-mail: lia.sartori@phys.ethz.ch and Prof. Dr. Sascha Quanz, e-mail: quanzs@phys.ethz.ch (no applications).

ETH Zurich is one of the world’s leading universities specialising in science and technology. We are renowned for our excellent education, cutting-edge fundamental research and direct transfer of new knowledge into society. Over 30,000 people from more than 120 countries find our university to be a place that promotes independent thinking and an environment that inspires excellence. Located in the heart of Europe, yet forging connections all over the world, we work together to develop solutions for the global challenges of today and tomorrow.