Dan Hooper

Physicist and author, Director of the Wisconsin IceCube Particle Astrophysics Center (WIPAC) at the University of Wisconsin-Madison

[Dan Hooper @DanHooperAstro]

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
https://t.co/suAHiM3E6M

[Sam Gregson @Samuel_Gregson]

@AstroJake You might enjoy this:

https://t.co/3Cbq4A7d5r

[Shalma Wegsman @shalmawegs]

To dwell on the edges of knowledge can be crazy making, but that’s exactly what drew me to physics; I wanted to feel nature’s absurdity.

(all my homies love David Lynch)
https://t.co/hf0eHPT7ee

[Ethan Siegel @StartsWithABang]

Famous globular cluster Terzan 5: an imposter after all

One of the largest, most famous globular clusters in our Milky Way is Terzan 5.

Only, it might not be a true globular cluster after all.

In fact, many of them might be imposters.
https://t.co/91tIA6aeMq

[Dan Hooper @DanHooperAstro]

Pass the joke along so I can it with my wife!

[Dan Hooper @DanHooperAstro]

I just told my wife a joke about both Star Wars and Medicare reform, and it totally landed! We may be in the top ten nerdiest couples of all time!

[Dan Hooper @DanHooperAstro]

Deadly ninja priests? Is that really what he said?

[Sam Gregson @Samuel_Gregson]

Wtf is this guy waffling about?

[Chris Quigg @chrisquigg]

International flags fly again ⁦@Fermilab⁩ !

[Martin Bauer @martinmbauer]

Stern and Gerlach’s 1922 paper on the discovery of quantised spin (that also won a Nobel prize) didn’t get translated into English until @PhillipHelbig and yours truly rectified this historic and indefensible dereliction in 2023

[Ethan Siegel @StartsWithABang]

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.

[IceCube Neutrino Observatory @uw_icecube]

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 ➡️ https://t.co/O1wNRUa3DY

More about APS ➡️ https://t.co/YR5ezHhAR6

📸: @WebsEdgeScience

[IceCube Neutrino Observatory @uw_icecube]

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! ➡️ https://t.co/ccey4LyRZu

#ScienceNews #WashingtonPost

[Brian Clark @NeutrinoBrian]

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

[IceCube Neutrino Observatory @uw_icecube]

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! ➡️ https://t.co/YFCqcD5bKL

📸 credit: Colton Hill, IceCube/NSF

#IceCubeUpgrade #neutrinos #Antarctica

[IceCube Neutrino Observatory @uw_icecube]

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

[IceCube Neutrino Observatory @uw_icecube]

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

[IceCube Neutrino Observatory @uw_icecube]

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

[IceCube Neutrino Observatory @uw_icecube]

🎥 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

[Dan Hooper @DanHooperAstro]

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

[IceCube Neutrino Observatory @uw_icecube]

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.

https://t.co/dTna8SD2pt.

[Dan Hooper @DanHooperAstro]

A great and well deserved honor goes to Francis Halzen today! Congratulations!
https://t.co/VdpndLB4B5