I just received the sad news that my colleague, Margaret Burbidge, has passed away. She turned 100 years old last August. Margaret played a foundational role in the physics and astronomy of the 20th Century. Rest In Peace Margaret, among the stars you helped us understand.

Super-Fun interview with Fraser Cain on the Universe Today today! Topics included: •the Hubble Crisis •#MargaretBurbidge •Inflation vs. Cyclic Cosologogies. Enjoy! youtube.com/watch?v=jHKLZk…

Did the #ANITA experiment detect a parallel Universe? Not so fast, says ANITA team member, experimental physicist Professor Abigail Vieregg (UChicago). 🎥: youtu.be/LDYAKdSqiBU?su…

Enjoy Episode 1 of the PBS SpaceTime series “A New Theory Awakens” 😂 Livestream is now up on my channel, featuring the brilliance of @Tegmark, James Beacham, Stephon Alexander, and Matt O'Dowd: youtu.be/3MX8EpvLwao?su…

All the major summer star parties have been cancelled, so we are hosting a Virtual Star Party *TONIGHT* with Wyoming Stargazing & Deep Astronomy! You’ll see incredible objects with Huge, robotic telescopes! Hubble's greatest hits! Please register; click here: eepurl.com/ha6VKD

There I am!!

Juan Maldacena (@the_ias): On Theories of Everything, Wormholes, and even God & the Multiverse! youtu.be/uIzTliTHn7s?su…

SO is proud to be an APS-IDEA member! APS-IDEA is a community of physics depts, labs, and other orgs committed to improving equity, diversity, and inclusion. 4 SO collaborators are excited to attend the second workshop, which started today! American Physical Society aps.org/programs/innov…

Trivia events, movie nights, and a version of Iron Chef—some of the ways winterovers at the BICEP2 (OFFICIAL) telescope array at the South Pole keep things fun. go.aps.org/30afO9a

Is the Universe Twisted? Limits on Lorentz Violation & other Screwy Ideas! A conversation with ⁦Sean Carroll⁩ youtu.be/egwg8ooc-L0?su…

Featuring me and Simons Observatory

New Paper Alert: BICEP / Keck Array XII: Constraints on axion-like polarization oscillations in the cosmic microwave background #axion arxiv.org/abs/2011.03483

New joint analysis w/ our neighbors South Pole Telescope: A Demonstration of Improved Constraints on Primordial Gravitational Waves with Delensing arxiv.org/abs/2011.08163 First use of a powerful tool in the inflation hunter’s kit, improving tensor-to-scalar ratio (r) using delensing!

Fascinating!

Love seeing Losing the Nobel Prize in its native habitat! BICEP2 (OFFICIAL) South Pole Telescope #FiveStarFriday. Get yours 👇 amzn.to/2sa5UpA

Joined Twitter 7 years ago...right before I made a big announcement

The BICEP2 announcement was seven years ago today - here’s a photo I took of all the excited cosmologists. (Little did we know!)

1500 citations later...and counting BICEP2 (OFFICIAL)

Cosmic Queries: A Guide to Who We Are, How We Got Here, & Where We're Going with Neil deGrasse Tyson! Nat Geo Books Hit🔔👉youtu.be/1kxgK6J4S5Y