A universe underground Jan 2, 2021

A universe underground

When Vietnamese farmer Hồ Khanh stumbled upon this cave in 1991, it was immediately clear the gaping mouth led to a huge, dark, untouched chamber, complete with a free-flowing underground river. What couldn"t have been apparent to him then was that this cave, now known as Sơn Đoòng, is by far the world"s largest by volume.

© David A Knight/Shutterstock

palette

Today in History

Jan 2, 2019Tesla, the visionary
Jan 2, 2020Winter in the Finnish wilds
Jan 2, 2022Prague, Czech Republic
Jan 2, 2023Hohenzollern Castle near Stuttgart, Germany
Jan 2, 2024Prayer flags in Phobjikha Valley, Bhutan
Jan 2, 2025Ardez, Graubunden, Switzerland
Jan 2, 2026Aerial view of Venice, Italy

More Desktop Wallpapers:

Oct 15, 2023European hedgehog
Jan 2, 2026Aerial view of Venice, Italy
Dec 26, 2019It s Slovenia s Independence and Unity Day
May 20, 2019The island fox’s incredible comeback
Feb 21, 2022Presidents Day
Oct 24, 2019Bridge of Hillsborough County
Mar 16, 2020I ll call for pen and ink
Nov 11, 2018Poppies for Armistice Day
Mar 2, 2023Negratín Reservoir, Granada, Spain
Oct 27, 2021Pumpkin patch
Dec 4, 2021Cheetah mother and cub
Aug 23, 2022Menton, France
Dec 6, 2021Computer Science EDU Week
Oct 21, 2019The Guggenheim turns 60
Nov 18, 2024Porthcawl Lighthouse, Wales, UK
Oct 4, 2021Hey neighbor, it s World Space Week!
Jun 16, 2026World Sea Turtle Day
Feb 12, 2019To Roswell, and beyond!
Oct 1, 2021What s better than a smile?
Feb 25, 2020Jazzed for Mardi Gras
Nov 16, 202250 years of World Heritage Sites
Jul 12, 2022Bay Marker Lookout, Sydney Olympic Park, Australia
Jan 18, 2020Sands of time
Sep 20, 2026Eiffel Tower at sunset, Paris, France
Aug 17, 2026False clownfish off Cabilao Island, Bohol, Philippines
Apr 8, 2024Total solar eclipse
Dec 6, 2019 America s Playground by Derrick Adams
Mar 9, 2026Gray seal sleeping on the beach, Orkney Islands, Scotland
Jun 20, 2025Summer solstice
Sep 19, 2022State funeral of Queen Elizabeth II