Hidden passage leads explorers to deepest cave Down Under

Hidden passage leads explorers to deepest cave Down Under | Treasure trove of gold and jewels recovered from a 366-year-old shipwreck in the Bahamas | If blood is red, why do veins look blueish? Created for {EMAIL} | [Web Version]( August 8, 2022 CONNECT WITH LIVESCIENCE  [Facebook]( [Twitter](  [LIVESCIENCE]( Amazing science every day [SIGN UP]( ⋅ [WEBSITE](  [] Top Science News [] [Hidden passage leads explorers to deepest cave Down Under]( [Hidden passage leads explorers to deepest cave Down Under]( (Ciara Smart) Explorers abseiled, squeezed and crawled their way through Australia's deepest cave system on July 30, boldly going where no cavers had gone before and setting a new cave depth record. Cavers from the Southern Tasmanian Caverneers, a speleological organization based in Hobart, Australia, made it through the 1,316-foot-deep (401 meters) cave in Tasmania, an island south of mainland Australia. Stephen Fordyce, who first discovered the cave and organized the expedition, named the cave "Delta Variant" after the delta variant of COVID-19 to remind future cavers of current events, according to a statement released by Southern Tasmanian Caverneers. Full Story: [Live Science]( (8/8) [LinkedIn]( [Twitter]( [Facebook]( [Email]( Just the Facts, Ma'am "I stopped watching TV news a year ago, so sick of the bias everywhere. But in doing so, I was out of the loop. I decided to give 1440 a try & I've not been disappointed. Finally, Walter Cronkite style reporting! Just the facts. I also love that I can click a link to see more on many stories. Keep up the good work!" [Join for free now](. ADVERTISEMENT: [] History & Archaeology [] [Treasure trove of gold and jewels recovered from a 366-year-old shipwreck in the Bahamas]( [Treasure trove of gold and jewels recovered from a 366-year-old shipwreck in the Bahamas]( (©Brendan Chavez/Allen Exploration) A treasure trove of gold coins, gemstones and jewels was recently uncovered at a 366-year-old Spanish shipwreck. In an effort to conserve what's left of the ship and its prized cargo, an international team of preservationists and underwater archaeologists has been working to recover objects from the shipwreck, which sits in the Atlantic Ocean about 43 miles (70 kilometers) off the coast of the Bahamas. Full Story: [Live Science]( (8/8) [LinkedIn]( [Twitter]( [Facebook]( [Email]( [] Life’s Little Mysteries [] [If blood is red, why do veins look blueish?]( [If blood is red, why do veins look blueish?]( (ExperienceInteriors via Getty Images) It's commonly said that oxygen-rich blood is red, while oxygen-poor blood is blue. But is that really true? In a word, no. Blood is always red. Every molecule of hemoglobin — a protein in red blood cells that carries oxygen — contains four atoms of iron, which reflect red light and so give our blood the red color. The shade of red changes depending on the level of oxygen in the blood. When the hemoglobin picks up oxygen in the lungs, the blood is a bright cherry red as it heads into the arteries and out to the tissues around your body. Full Story: [Live Science]( (8/8) [LinkedIn]( [Twitter]( [Facebook]( [Email]( [] [Is Earth getting closer to the sun, or farther away?]( [Is Earth getting closer to the sun, or farther away?]( (Bernt Ove Moss / EyeEm via Getty Images) The sun moves in such a predictable way across the sky that you might never suspect that its relationship with Earth is changing all the time. In fact, the average distance between Earth and the sun is not static year over year. So do we know if Earth is getting closer to or farther from the sun? And what forces are acting on our planet and our star to make this happen? Full Story: [Live Science]( (8/6) [LinkedIn]( [Twitter]( [Facebook]( [Email]( [] In the Sky [] [Last supermoon of the year — the 'Sturgeon moon' rises Aug. 11]( [Last supermoon of the year — the 'Sturgeon moon' rises Aug. 11]( (Getty Images) As summer slips into autumn and nights begin to grow longer, the final supermoon of the year will make a big splash Thursday (Aug. 11). Nicknamed the "Sturgeon Moon," August's full moon peaks around 9:36 p.m. EDT on Thursday (0136 a.m. GMT on Friday), although the moon will appear bright and full on Wednesday and Friday night (Aug. 10 and Aug. 12) as well. Full Story: [Live Science]( (8/8) [LinkedIn]( [Twitter]( [Facebook]( [Email]( [] Curious Creatures [] ['Yoda' primates sing duets like opera stars]( ['Yoda' primates sing duets like opera stars]( (Nature Picture Library / Alamy Stock Photo) Tiny, monkeylike creatures called tarsiers sing duets together in the style of opera singers — but those who fail to hit the high notes may also flop at attracting mates, scientists recently suggested. With their large, pointed ears and expressive eyes, nocturnal tarsiers carry a striking resemblance to the diminutive Jedi master Yoda from "Star Wars" films. But while Yoda never demonstrated any operatic ability, tarsiers are energetic singers who may exert themselves vocally as a form of sexual selection or to signal to each other that it's time for all members of a troop to gather together to sleep, according to a new study. Full Story: [Live Science]( (8/8) [LinkedIn]( [Twitter]( [Facebook]( [Email]( [] Daily Quiz [] POLL QUESTION: True or false: Earth is getting closer to the sun over time. (Learn the answer [here]() [Vote]( [True]( [Vote]( [False](   [Sign Up]( | [Update Profile]( | [Unsubscribe]( [Privacy Policy]( | [Cookies Policy]( | [Terms and Conditions]( CONTACT US: [FEEDBACK](mailto:livescience@smartbrief.com) | [ADVERTISE]( Future US LLC © 1100 13th St. NW, Suite 1000, Washington, DC 20005