Did you hear about the weird holes scientists found at the bottom of Lake Michigan? Divers exploring the lake stumbled across perfectly round pits that look like something out of a sci-fi movie. At first, people joked it might be aliens or underwater crop circles, but the truth is still pretty mysterious. Scientists think the holes might be formed by methane gas escaping from beneath the lakebed, or maybe by strong underwater currents eroding the sand. What’s even cooler is that these holes are home to unique ecosystems with strange microorganisms. It’s like a whole underwater world we’re just beginning to explore!
Credit:
la lasta glaciepoko: by ZDF/Terra X/Bilderfest/Florian Breier/Klaus Wache/Tobias Forth/Maik Siegle /Peter Riegel/Lilly Wagner/ Maximilian Mohr, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/, https://commons.wikimedia.org/wiki/File:046_-_Kiel_la_lasta_glaciepoko_komenci%C4%9Dis_-_scivolemo_-_zdf.webm
Shirase Glacier Antarctica: by Google Earth, CC BY 3.0 https://creativecommons.org/licenses/by/3.0/, https://commons.wikimedia.org/wiki/File:Google_Timelapse-_Shirase_Glacier_Antarctica.webm
Pine Island Glacier: NASA/Goddard Space Flight Center Scientific Visualization Studio
Glacier Valley formation: by Cecilia Bernal, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/, https://commons.wikimedia.org/wiki/File:Glacier_Valley_formation-_Formaci%C3%B3n_Valle_glaciar.gif
Greenland Ice Flow: NASA/Goddard Space Flight Center Scientific Visualization Studio
Lac Beauchamp marks: by FinTheKnight, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/, https://commons.wikimedia.org/wiki/File:Lac_Beauchamp_chatter_marks.jpg
map of Lake Michigan: by NOAA Great Lakes Environmental Research Laboratory, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0/, https://flic.kr/p/79HVyF
Geheimnisvolle Tiefsee: by ZDF/Terra X/Gruppe 5 Filmproduktion/Tamar Baumgarten/Scope VFX/Maximilian Mohr, CC BY 4.0 https://creativecommons.org/licenses/by/4.0/, https://commons.wikimedia.org/wiki/File:Geheimnisvolle_Tiefsee.webm
Gastrosaccus spinifer: by Hans Hillewaert, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/, https://commons.wikimedia.org/wiki/File:Gastrosaccus_spinifer.jpg
Mysida sp: by Rickard Zerpe, CC BY 2.0 https://creativecommons.org/licenses/by/2.0/, https://commons.wikimedia.org/wiki/File:Mysida_sp._(48929234648).jpg
Myoxocephalus thomsonii: by JG Mychek-Londer, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/, https://commons.wikimedia.org/wiki/File:%22Myoxocephalus_thomsonii%22_%22deepwater_sculpin%22.JPG
Rock covered: by NOAA Great Lakes Environmental Research Laboratory, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0/, https://commons.wikimedia.org/wiki/File:Rock_covered_in_quagga_mussels_(20444468834).jpg, https://flic.kr/p/x9BfiY
Archean: by Tim Bertelink, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/, https://commons.wikimedia.org/wiki/File:Archean.png
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