68% of the universe is made up of dark energy. We can’t see it, so how do we study it?
In this Midday Science Cafe, you’ll hear from two researchers on a quest to understand
the properties of dark energy and how to measure it.
Dr. Emmanuel Schaan will discuss gravitational lensing, the deflection of light by mass that helps scientists understand the properties of dark energy.
Dr. Claire Poppett will explain how a powerful instrument — the Dark Energy Spectroscopic Instrument (DESI) — has embarked on an ambitious survey to explore the nature of dark energy by studying light emitted from celestial bodies.
Thursday, Feb 18th, 2021 | 12:00 – 1:30 pm