The sun set at the South Pole last week

The sun, won’t rise again until September.

Six months of darkness are one of the reasons powerful telescopes are located at the South Pole. (Amindsen-Scott US South Pole Station, WAP USA-21 & WAP USA-36).
The photo by Danny Hampton (here aside), shows the South Pole Telescope, operated by the University of Chicago, as they study the origins of the universe.
Thanks and credit to: The Antarctic Support Contract

The Antarctic Support Contract team provides station operations, logistics, information technology, construction, maintenance and more on Antarctica and at support facilities worldwide.

Supporting scientific research on the highest, driest, coldest, windiest and emptiest place on Earth requires exceptional logistics and planning expertise. Leidos is the prime contractor for the National Science Foundation’s United States Antarctic Program (USAP).

See more at: https://www.leidos.com/competencies/operations-and-logistics/antarctic-support-contract