Dan Hooper

At the Edge of Time: Exploring the Mysteries of Our Universe's First Seconds is available now. A tour of our cosmic history, focusing on the first moments after the Big Bang and the puzzles of dark matter, dark energy, inflation and antimatter. #EdgeofTime amazon.com/gp/product/069…

Because grifters are grifting. It's what they do. It's all they do. And if you don't realize it, congratulations: you're the mark.

Check out @uwmadphysics student Alicia Mand's recent interview on @APSphysics TV! Alicia goes behind the scenes on one of astrophysics' biggest discoveries ✨🔭 Watch the interview ➡️ youtu.be/SaJiLSceQ6c?si… More about APS ➡️ summit.aps.org 📸: @WebsEdgeScience

Extra! Extra! Go read about the #IceCubeUpgrade in @washingtonpost! In a new article, Carolyn Johnson captured the excitement of the Upgrade and the intrigue of IceCube's mission. 🌌✨ Read the article! ➡️ wapo.st/40v0xhX #ScienceNews #WashingtonPost

Really proud to see our paper in the PRL "Collection of the Year" for 2025!

The IceCube Upgrade has been successfully deployed! 🎉 The Upgrade marks the first significant expansion of IceCube since its completion 15 years ago. Read about it here! ➡️ icecube.wisc.edu/news/press-rel… 📸 credit: Colton Hill, IceCube/NSF #IceCubeUpgrade #neutrinos #Antarctica

Here is a view from the top of the tower as the DOMs are lowered into the hole! With everyone hard at work, progress continues down at the Pole! 🏗️🔭✨ 📸: Colton Hill, IceCube/NSF #IceCubeNeutrinoObservatory #SouthPole #UpgradeUpdate #Science

String 90 has been deployed! 🎉 Here, IceCubers are surrounding the final mDOM installed on the string, which was nicknamed "Give Me The Night." (Fun fact: all the mDOMs are named after disco or Taylor Swift songs! 🎶) Only 3 more strings to go!! 📸: Emmett Krupczak

Happy Holidays from our IceCubers at the South Pole! ❄️ The crew finished installation of the first string of modules for the IceCube Upgrade! 🎉 Congratulations to everyone involved! 👏 One string down, six more to go! 📸 Yuya Makino and Albrecht Karle, IceCube/NSF

🎥 Here is a 7-hour time-lapse at the start of drilling the first hole for the IceCube Upgrade. This comes almost exactly 15 years after drilling for the 86th hole of IceCube was finished on December 18, 2010! 🤯 🎥 Jennifer Wang and Vedant Basu, IceCube/NSF

I heard a rumor that GAPS just successfully launched! Can anyone confirm? Any pictures? Any details?

Congrats to IceCube PI Francis Halzen, recipient of the 2026 @APSphysics Medal for Exceptional Achievement in Research! 🏅 His leadership of IceCube and its discoveries have made significant contributions to the field of neutrino astrophysics. aps.org/apsnews/2025/1….

A great and well deserved honor goes to Francis Halzen today! Congratulations! aps.org/apsnews/2025/1…

JUNO, the world’s largest liquid scintillator neutrino detector has started to take data. 20000 tons, 43000 photo multipliers, 700m underground The chinese experiment aims to determine the neutrino mass hierarchy and measure neutrino mixing angles at sub-% level

RIP Bill Bardeen, superb theorist and exemplary colleague.

📆 Join us on Dec 3 @ 7:00 PM CST for an out-of-this-world Badgers On Tap event where WIPAC Director @DanHooperAstro and @UWMadPhysics PhD student Abby Bishop will share all about the cosmos! 🌌 Enjoy fun drinks, trivia, bingo, and prizes at @TheRigbyPub! 🍻🏆

🎥 Here is a 2.5-hour timelapse of the crew moving a tower and tower operation site building (red) into position above the planned 1st hole for the IceCube Upgrade. It took 2 operators and 3 machines to move the buildings. . 🎥 Jennifer Wang and Vedant Basu, IceCube/NSF

📍This past week at the Pole has been nothing short of action-packed; the changing of the (IceCube winterover) guard, Upgrade activities at full steam ahead, and lots of arriving cargo! Read more about week 45 ➡️icecube.wisc.edu/news/life-at-t… 📸:Alicia Fattorini, IceCube/NSF

For the record, I had nothing to do with Sabine Hossenfelder losing her academic affiliation.

@skdh I guess I should tag @DanHooperAstro. Would love to discuss this episode with him.

Stephen J. Hawking, the renowned astrophysicist regarded as Albert Einstein's intellectual successor, conceded defeat this week in a wager he made six years ago with two professors at the California Institute of Technology. Hawking incorrectly bet against the existence of naked singularities -- a mathematical point in a black hole where space and time are infinitely distorted, where matter is infinitely dense, and where the rules of relativistic physics break down. With all due respect to Mister Hawking... what the hell were you thinking?!!