This video features information about eBOSS from a number of researchers including Will Percival, the speaker on the April 7, 2021 PI webcast,

From an April 2, 2021 PI notice (received via email),

Mapping the Universe with eBOSS
WEDNESDAY, APRIL 7 [2021] at 7 pm ET

As Douglas Adams correctly wrote in The Hitchhiker’s Guide to the Galaxy, “Space is big. You just won’t believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it’s a long way down the road to the drug store, but that’s just peanuts to space.”

Few people understand the vastness of space as well as Will Percival. Percival is a cosmologist working primarily on galaxy surveys, using the positions of galaxies to measure the cosmological expansion rate and growth of cosmological structure. He is the Survey Scientist for the extended Baryon Oscillation Spectroscopic Survey (eBOSS), which created the largest three-dimensional map of the universe ever made using the positions of millions of galaxies and quasars dating back roughly 11 billion years.

In his April 7 [2021] Perimeter Public Lecture webcast, Percival will aim to help the audience grasp the enormity of space using the latest results from eBOSS, exploring the profound insights they provide into the physics of our universe.

You can watch the webcast on April 7, 2021 at 4 pm PT (7 pm ET) here on the Mapping the Universe with eBOSS event page.