South Pole Telescope @SPTelescope

@sptelescope.bsky.social | A 10-meter diameter sub-mm wavelength telescope observing the cosmic microwave background from the South Pole, Antarctica. pole.uchicago.edu South Pole, Antarctica Joined October 2013

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South Pole Telescope @SPTelescope

2 hours ago

Picture from winterover Sheryl Seagraves. The view from station out to the Dark Sector. Getting much brighter outside about 2-weeks before #sunrise. The red "night" lights from the telescope are becoming less visible against the brightening sky. #Antarctica @NSF

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South Pole Telescope @SPTelescope

3 days ago

The current view from SPT back to station, picture by winterover Sim. The MAPO building / BICEP array ground shield is let in red in the foreground, and some windows from station can be seen in the distance 1-km away. #southpole #sunrise #Antarctica @NSF

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South Pole Telescope @SPTelescope

4 days ago

Getting closer to #sunrise at the #southpole, with official sunrise still nearly three weeks away. Winterover Sim capturing a picture of the horizon behind the ceremonial South Pole with his rubber duck on top. #Antarctica #duckad_for_bts

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Daniel Green @nu_phases

a week ago

For (cosmic) neutrino mass enthusiasts: Peter Graham, Joel Meyers and I have new paper, breaking down why data prefers "negative" masses and how it might be explained with new fields and/or forces. We point to a number of measurements that would clarify the situation

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IceCube Neutrino Observatory @uw_icecube

a week ago

📍Though it may have been a mostly quiet week at the station, it was also the South Pole Iron Chef competition! Read more about week 32 ➡️icecube.wisc.edu/news/life-at-t… 📸:Ilya Bodo, IceCube/NSF

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South Pole Telescope @SPTelescope

2 weeks ago

SPT winterover Sim Bash attempting to play #chess outside at the #southpole during the annual Pole #Olympics, in -30 deg F temps and 30 knot winds. Sim unfortunately reigned after too many pieces blew away. Pic by Zach.

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Tony Press @AnthonyPress

2 weeks ago

Antarctic Science: The US National Science Foundation and the fate of the research icebreaker Nathaniel B. Palmer | Scientific American scientificamerican.com/article/u-s-cu…

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South Pole Telescope @SPTelescope

2 weeks ago

A group of winterovers, including SPT's Karia Dibert, posing in front of the #southpole marker (pic by Kevin Leung). The long exposure helps to see signs of the #sunrise at Pole, but with the stars overhead there will still be some decent night sky viewing. @NSF

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South Pole Telescope @SPTelescope

3 weeks ago

It's still about a month away from official #sunrise at the #southpole, but they are starting to see signs of the Sun on the horizon! Picture by winterover Zeke Mills from the deck on the station! @NSF #southpole

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South Pole Telescope @SPTelescope

4 weeks ago

Another picture from winterover Zach Tejral of SPT observing a couple weeks ago, with some nice #aurora and the #milkyway just overhead. #Antarctica #southpole @NSF

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South Pole Telescope @SPTelescope

4 weeks ago

Picture from Winter Site Manager Zach Tejral of the Dark Sector Lab (DSL), which hosts the BICEP-3 experiment, and the South Pole Telescope! #ANTARCTICA @NSF @doescience #nsfunded #doefunded

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South Pole Telescope @SPTelescope

4 weeks ago

Emergency mid-winter medivac from McMurdo this week, hoping everyone is ok! #Antarctica nytimes.com/2025/08/06/wor…

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IceCube Neutrino Observatory @uw_icecube

a month ago

📍It's the most wonderful time of the year... in Antarctica!🎄Last week, the whole station gathered to celebrate Christmas in July. The perks of an Antarctic winter! Read more about Week 29: icecube.wisc.edu/news/life-at-t… 📸: Ilya Bodo, IceCube/NSF

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South Pole Telescope @SPTelescope

a month ago

New SPT-3G constraints on early dark energy: "combining with DESI ... we get fEDE=0.071+0.035−0.038 at 68% CL and a weak preference for AEDE over ΛCDM. this shift is a manifestation of the discrepancy present between DESI and CMB experiments in ΛCDM" arxiv.org/abs/2507.23355

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South Pole Telescope @SPTelescope

a month ago

Interview with SPT scientist Johanna Nagy! Stellar minds: Women astronomers map universe's mysteries sciencex.com/wire-news/5154… via @sciencex_com

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South Pole Telescope @SPTelescope

a month ago

Quick picture by SPT winterover Sim Bash on their way out to the telescope, with the red glow from the station lights in the background, and some nice #aurora overhead! #Antarctica @NSF

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Kevin Zagorski @KevZag

a month ago

@NASAWatch @esa @NASA @NASAjohnson The US has more people spending time in the exact same environment year round. There is an excellent opportunity for NASA to be doing more.

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Physical Review Letters @PhysRevLett

2 months ago

IceCube (@uw_icecube) finds no neutrinos above 10 PeV in 12.6 yrs of data • In 2.9σ tension with the ~200 PeV KM3NeT neutrino event • Disfavors the proton-only hypothesis for ultrahigh-energy cosmic rays PRL: go.aps.org/40mhziS PhysMag: go.aps.org/4lOm6mg

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IceCube Neutrino Observatory @uw_icecube

2 months ago

📍A quiet week at the Pole called for one of the station’s favorite complicated board games, Frosthaven! Read more about week 26 ➡️icecube.wisc.edu/news/life-at-t… 📸: Joe Baines-Holmes, IceCube/NSF