How gravitational waves can 'see inside' black holes

5,000-year-old 'bog body' found in Denmark may be a human sacrifice victim | Disease-riddled skeletons suggest leprosy and smallpox ravaged medieval German village | Why is Christmas celebrated on Dec. 25? Created for {EMAIL} | [Web Version]( December 14, 2022 CONNECT WITH LIVESCIENCE  [Facebook]( [Twitter](  [LIVESCIENCE]( Amazing science every day [SIGN UP]( ⋅ [WEBSITE](  [] Top Science News [] [How gravitational waves can 'see inside' black holes]( [How gravitational waves can 'see inside' black holes]( (ESA) Black holes are some of the most enigmatic objects in the universe. This is partially because the equations of general relativity that we use to understand them break down when studying black holes' ultra-dense centers. However, a new paper shows how astronomers could one day overcome this challenge by using gravitational waves to "see" inside merging black holes, and learn what they're really made of. Full Story: [Live Science]( (12/14) [] History & Archaeology [] [5,000-year-old 'bog body' found in Denmark may be a human sacrifice victim]( [5,000-year-old 'bog body' found in Denmark may be a human sacrifice victim]( (Christian Dedenroth-Schou, ROMU) Archaeologists have discovered the ancient skeletal remains of a so-called bog body in Denmark near the remnants of a flint ax and animal bones, clues that suggest this person was ritually sacrificed more than 5,000 years ago. Little is known so far about the supposed victim, including the person's sex and age at the time of death. But the researchers think the body was deliberately placed in the bog during the Neolithic, or New Stone Age. Full Story: [Live Science]( (12/14) [] [Disease-riddled skeletons suggest leprosy and smallpox ravaged medieval German village]( [Disease-riddled skeletons suggest leprosy and smallpox ravaged medieval German village]( (Isabelle Jasch-Boley) More than one-third of the individuals buried in an early medieval cemetery in Germany suffered from infectious diseases, a new study reveals. Researchers from Kiel University in Germany examined the DNA and skeletal remains of 70 people who were buried in the community cemetery located in Lauchheim Mittelhofen, a town in what is now present-day Germany. Full Story: [Live Science]( (12/13) [] Life’s Little Mysteries [] [Why is Christmas celebrated on Dec. 25?]( [Why is Christmas celebrated on Dec. 25?]( (10'000 Hours via Getty Images) Today, many (but not all) Christians celebrate Christmas on Dec. 25. But given that the birth date of Jesus Christ is not known with certainty, why was this day selected? There are two major theories as to why Christmas is celebrated on Dec. 25. One, sometimes called the "history of religion" hypothesis, suggests that Christmas supplanted one or more pagan holidays. The other theory, often called the "computation" or "calculation" hypothesis, suggests that early Christians used some form of calculation to arrive at Dec. 25 as Jesus' birthday. Full Story: [Live Science]( (12/11) Featured Content Sponsored Content from Gatorade [Gatorade Gummies: Gatorade is leading the charge in the evolution of sports fuel]( Being an athlete is a 24/7 pursuit. That's why Gatorade is bringing two brand new dietary supplements to athletes focused on supporting exercise recovery and supporting the immune system. Check out this article to discover new levels of performance from the name you trust. [Learn more.]( [Supporting the Athlete in You 24/7]( All new dietary supplements from Gatorade are the latest in a long line of industry-leading sports fuel to keep athletes performing at their best. These new gummies are designed specifically to help your body recover after exercise and help support your immune system every day. Because being an athlete is a 24/7 pursuit. [Shop Now]( [] Space Exploration [] [Listen to a Martian dust storm engulf the Perseverance rover in eerie, world-first audio recording]( [Listen to a Martian dust storm engulf the Perseverance rover in eerie, world-first audio recording]( (NASA/JPL-Caltech) A towering dust storm that engulfed the Mars Perseverance rover in September 2021 was a colossal 390.4 feet (119 meters) tall, the first-ever audio recording of a dust devil on the surface of Mars reveals. The recording, an analysis of which was published Tuesday (Dec. 13) in the journal Nature Communications, also reveals brand-new information about how these short-lived phenomena move dust around on the Red Planet. Full Story: [Live Science]( (12/13) [] Astronomy & Astrophysics [] [James Webb Space Telescope captures 'extraordinary' clouds in the atmosphere of Saturn's alien moon Titan]( [James Webb Space Telescope captures 'extraordinary' clouds in the atmosphere of Saturn's alien moon Titan]( (SCIENCE: NASA, ESA, CSA, Webb Titan GTO Team IMAGE PROCESSING: Alyssa Pagan (STScI)) Scientists spotted something exciting on Saturn's moon Titan in images taken by NASA's James Webb Space Telescope in early November — clouds. Specifically, clouds in Titan's northern hemisphere. To a casual observer, clouds might be a dime a dozen. But to scientists, clouds can reveal a lot about the atmosphere of a planet (or in this case, a moon). Titan is the only moon in the solar system with a thick atmosphere, so studying clouds helps scientists understand how Titan's atmosphere works — and why it has an atmosphere in the first place. Full Story: [Live Science]( (12/14)   [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