Aerospace seminars

Sergio Pellegrino studies deployable composite shells for large space solar arrays, where lightweight construction and compact storage are essential. A design explored in Caltech's Space Solar Power Project uses slender cylindrical longerons formed from two circular-arc flanges bonded along an edge. Laminates thinner than 0.1 mm permit tight packaging but make bending behaviour sensitive to local geometric imperfections. The talk examines how the size, shape and distribution of those imperfections explain nonlinear moment–rotation measurements and determine overall bending stiffness, connecting detailed structural analysis with prototype observations. Online via Zoom. Tuesday 29 September 2026 at 12:00 EDT (America/New_York; UTC−4). Organized by ASCE Engineering Mechanics Institute — Stability Committee. Researchers, practitioners and students can use Register for Zoom Link on the organizer's page; the event-specific form requests contact and affiliation details. Attendees must acknowledge the organizer's prohibition on unauthorized recording, transcription and meeting-assistant bots. Pellegrino is a professor at the California Institute of Technology.

Julie Robinson explores what maintaining human life aboard the International Space Station teaches us about Earth. Space habitation requires engineered substitutes for the air, water, surfaces and living systems that our planet supplies. Long-duration occupation of the station has produced lessons about building and operating these life-support systems. The station is also an observing platform for the Earth system below. Robinson connects the engineering lessons of living in space with Earth observations, climate change, and ways that spaceflight can help communities understand environmental change and strengthen their resilience.

What happens to human sleep and circadian rhythms in space? There are many challenges that affect sleep in space, including unusual patterns of light exposure and the influence of microgravity. This talk will review the causes and consequences of sleep loss and circadian misalignment during spaceflight and will discuss how missions to the Moon and Mars will be different than missions to the International Space Station.

The presentation will present the work of the Space Enabled Research Group at the MIT Media Lab. The mission of the Space Enabled Research Group is to advance justice in Earth’s complex systems using designs enabled by space. Our message is that six types of space technology are supporting societal needs, as defined by the United Nations Sustainable Development Goals. These six technologies include satellite earth observation, satellite communication, satellite positioning, microgravity research, technology transfer, and the infrastructure related to space research and education. While much good work has been done, barriers remain that limit the application of space technology as a tool for sustainable development. The Space Enabled Research Group works to increase the opportunities to apply space technology in support of the Sustainable Development Goals and to support space sustainability. Our research applies six methods, including design thinking, art, social science, complex systems, satellite engineering and data science. We pursue our work by collaborating with development leaders who represent multilateral organizations, national and local governments, non-profits and entrepreneurial firms to identify opportunities to apply space technology in their work. We strive to enable a more just future in which every community can easily and affordably apply space technology. The work toward our mission covers three themes: 1) Research to apply existing space technology to support the United Nations Sustainable Development Goals; 2) Research to design space systems that are accessible and sustainable; and 3) Research to study the relationship between technology design and justice. The presentation will give examples of research projects within each of these themes.