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SPT Winterover Michel took this amazing picture, showing the walk out from #southpole station to the dark sector. The moon light and ice crystals on the horizon have a fog-like appearance with the flags and red-lights marking the trail. @NSF @doescience #Antarctica

Another great picture from winterover Anjali of the great weather and clear skies at the #southpole this week! Picture of SPT with the red night vision light on with the #milkyway in the background. #Antarctica @NSF @doescience @uchicagomag.bsky.social

Weather has been great this week at the #southpole! Multiple days of below -100 deg F weather, which has meant really clear skies and great observing! Picture from winterover Anjali of SPT and BICEP with the #milkyway galaxy overhead. #Antarctica @NSF @doescience #Genesis

This time of year is a great time for #southpole pictures, including this one from Anjali, showing the deep blue skies right now! You can really see the ice and snow buildup on and around the building by mid-winter. #Antarctica #NSF #DOEScience

The new SPT-3G cluster catalog from our 5-year Main survey data set is now publicly available at: pole.uchicago.edu/public/Home.... In total, 8,892 cluster candidates detected in 1,604.8 deg2 of sky, with 25% of the confirmed sample at z > 1! #Antarctica #NSFfunded #DOEfunded

New SPT-3G cluster catalog! arxiv.org/abs/2607.01175 "the sample consists of 8,892 cluster candidates .. 1,780 clusters are at z>1 and 271 at z>1.5 .. the sample is significantly deeper, with a cluster density of 4.5 confirmed clusters/deg2" @NSF @doescience #Antarctica

South Pole Telescope SPT-3G collaboration at @UChicagoPSD this week! Great seeing everyone and mapping out the future of SPT! @NSF @doescience #Antarctica

Full moon as viewed from the South Pole this week during an afternoon walk out from station to DSL, pic by winterover Michel! Nice moon dog around the moon also provides nice contrast to see the landscape on the walk to the telescope. @NSF @doescience #Antarctica

Happy Midwinter from the South Pole! This weekend, the station celebrated "mid-winter", intended to approximately align with the Summer #solstice. Here is the station's official midwinter greeting, a pic taken when it was -98d F and -128d F windchill outside! @vrubinobs.bsky.social

Recent pic of the southern lights #aurora above the #southpole marker with the @NSF Amundsen-Scott South Pole station in the background. Pic by SPT winterover Michel @doescience #Antarctica

A picture of SPT and DSL from winterover Michel last week, with the moon starting to set. Even with the moon up and the red night vision lights on, you can still see the #aurora southern lights. @NSF @doescience #Antarctica #southpole

During the full moon a few days ago, SPT winterover Michel also captured this great pic of the moon behind the #southpole marker and ceremonial flags. The moon peaks at 28.7-deg elevation and is a full moon at its peak during the June solstice. #Antarctica @doescience @NSF

Only a few weeks away from mid-winter, during the solstice on June-21. Weather has been unseasonably warm at #southpole, getting as high as -42 deg Fahrenheit last week. Here is a pic from winterover Michel, of SPT and DSL, lit by the moonlight. @NSF @doescience #Antarctica

Roughly 6 weeks after $Sunset and we are in the darkest time of winter, here is a photo from winterover Michel of a nearly fully moon over the SPT this weekend! Observing weather has been great recently, with consistently dry clear skies #southpole #Antarctica @NSF @doescience

A pic from Site Manager Gavin Reynolds from a couple weeks ago during a full moon. View is from a back stairwell on station looking towards the station power plant, which is generating the smoke plume and about 30-feet below the main station. @NSF @doescience #Antarctica

Getting dark quickly at the #southpole now, roughly 1-month past #Sunset, and our winterovers are starting to see some signs of Southern Lights! Below is a pic from Michel using his iphone walking back from the telescope this week. @NSF @doescience

Nearly a month after Sunset, its much darker at the #southpole, but you can still see a little twilight on the horizon with a medium exposure on an #iphone. Here is a pic from winterover Michel towards the Dark Sector on the walk out to SPT. #Antarctica @NSF @doescience

Pic by Winterover Anjali of SPT, about 2-weeks after #Sunset, even with the Sun several degrees below the horizon there is still a light glow in its direction. Great observing weather recently too, as you can also see in this pic. #Antarctica @NSF @doescience

Another pic by winterover Michel. Taken from the station looking SPT and DSL, which are 1-km away, and small in the distance roughly below the nearly full moon. The view shows how featureless the landscape is at #southpole. #Antarctica @NSF @doescience

The South Pole ceremonial marker, pic by winterover Michel. Still bright enough to see a little bit of Sun on the horizon in the reflection off the marker, but the moon is the brightest thing in the sky right now. #Antarctica @NSF @doescience