Rare black hole 1 billion times the mass of the sun could upend our understanding of galaxy formation

450-mile-wide solid metal ball forms Earth's innermost core, earthquake waves reveal | Could dogs survive without humans? | Fragment of 1,000-pound meteor that exploded over Texas could reveal new insights about our solar system Created for {EMAIL} | [Web Version]( February 27, 2023 CONNECT WITH LIVESCIENCE  [Facebook]( [Twitter](  [LIVESCIENCE]( Amazing science every day [SIGN UP]( ⋅ [WEBSITE](  [] Top Science News [] [Rare black hole 1 billion times the mass of the sun could upend our understanding of galaxy formation]( [Rare black hole 1 billion times the mass of the sun could upend our understanding of galaxy formation]( (ESO/M. Kornmesser) A rare supermassive black hole found hiding at the dawn of the universe could indicate that there were thousands more of the ravenous monsters stalking the early cosmos than scientists thought — and astronomers aren't sure why. The primordial black hole is around 1 billion times the mass of our sun and was found at the center of the galaxy COS-87259. Full Story: [Live Science]( (2/24) [] Amazing Earth [] [450-mile-wide solid metal ball forms Earth's innermost core, earthquake waves reveal]( [450-mile-wide solid metal ball forms Earth's innermost core, earthquake waves reveal]( (Rost-9D via Getty Images) Scientists have harnessed powerful waves from earthquakes to measure Earth's innermost layer and found that our planet's center is a 450-mile-wide (725 kilometers) ball of solid iron-nickel alloy. Previously, many researchers believed that Earth had four distinct layers — the crust, the mantle, a liquid outer core and a solid inner core. But in the past couple of decades, scientists have proposed that the inner core actually consists of two layers, referred to as the inner core and the innermost inner core. Full Story: [Live Science]( (2/24) [] Life’s Little Mysteries [] [Could dogs survive without humans?]( [Could dogs survive without humans?]( (Shutterstock) It's easy to look into the adoring eyes of our pampered pups and think they'd be totally helpless without us. Even the thought of a pet dog living out in the wild is enough to make some owners despair. But imagine if humans suddenly disappeared and dogs had to fend for themselves. In such an apocalyptic scenario, could dogs survive in a world without people? Full Story: [Live Science]( (2/25) [] Astronomy & Astrophysics [] [Fragment of 1,000-pound meteor that exploded over Texas could reveal new insights about our solar system]( [Fragment of 1,000-pound meteor that exploded over Texas could reveal new insights about our solar system]( (Robert Ward - American Meteor Society) A hefty meteor weighing around the same as a grand piano recently exploded in the skies above Texas, potentially showering the surrounding area with smaller fragments. One of these meteorite chunks has already been recovered and could help reveal more about our cosmic neighborhood, experts say. Full Story: [Live Science]( (2/24) [] Curious Creatures [] [3 million years ago, this brutish giant petrel likely eviscerated dead seals with its knife-like beak]( [3 million years ago, this brutish giant petrel likely eviscerated dead seals with its knife-like beak]( (Illustration by Simone Giovanardi, © Te Papa; (CC-BY 4.0)) About 3 million years ago, giant petrels terrorized the skies and seas of the Southern Hemisphere with their deadly hooked bills and piercing eyes, a new study on a previously unknown bird species finds. The discovery — based on a well-preserved skull and weathered humerus (upper wing bone) of the ancient predator from New Zealand's North Island — marks the only extinct giant petrel species on record. Full Story: [Live Science]( (2/24) [] UFOs & Search for Extraterrestrial Life [] [Detecting life on Mars may be 'impossible' with current NASA rovers, new study warns]( [Detecting life on Mars may be 'impossible' with current NASA rovers, new study warns]( (NASA/JPL-Caltech) The current generation of Mars rovers may have trouble confirming any signs of ancient life on the Red Planet because their scientific instruments aren't up to snuff, according to new research. Scientists conducted tests on sedimentary rocks in the Red Stone region of Chile's Atacama Desert, one of the oldest and driest deserts on Earth and a geological analog to ancient sites on Mars that two NASA rovers are currently exploring. Full Story: [Live Science]( (2/24) [] Daily Quiz [] POLL QUESTION: Could dogs survive in a world without people? (Learn the answer [here]() [Vote]( [Yes]( [Vote]( [No]( [Vote]( [Well, some dog breeds would... Others, not so much.](   [Sign Up]( | [Update Profile]( | [Unsubscribe]( [Privacy Policy]( | [Cookies Policy]( | [Terms and Conditions]( CONTACT US: [FEEDBACK](mailto:livescience@smartbrief.com) | [ADVERTISE]( Future US LLC © Full 7th Floor, 130 West 42nd Street, New York, NY, 10036