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“Colorado River shortages, NYC flooding risk, Claude Mythos explained.”

Views expressed in this science and technology update are those of the reporters and correspondents.  Accessed on 27 April 2026, 1337 UTC.

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Created for kh6jrm@gmail.com | Web Version April 27, 2026 FOLLOW US Amazing science every day SIGN UP ⋅   WEBSITE Top Science News ‘A completely new reality’: Bolder measures are needed to prevent extreme water shortages in cities like Phoenix and Las Vegas that depend on the Colorado River Cities fed by the Colorado River have taken huge steps to reduce their water consumption over the past few decades, yet shortages are projected to grow more intense. What can be done? Read more Question of the Day The Orion heat shield used for the Artemis II mission aced its blistering journey through Earth’s atmosphere. How fast did it travel during reentry? (Learn the answer here) Nearly 10,000 mph Nearly 25,000 mph Nearly 50,000 mph Nearly 100,000 mph History & Archaeology DNA study of nearly 200 Indigenous genomes reveals unknown Asian ‘ghost’ population contributed to American ancestry New genetic results reveal a previously unknown wave of people settled in South America 1,300 years ago and that Indigenous Americans carry remnants of a “ghost lineage.” Read more Climate Change New York City is at major risk of flooding that could leave 4.4 million people exposed to extreme damage, study finds The new flood risk index identified eight cities along the U.S. East Coast that are at high or very high risk of floods causing extreme damage. Read more Your Body ‘Eventually, it becomes you’: Inventors of new ‘living’ knee replacement describe why this tech is desperately needed and how it works Live Science spoke with the developers of a living knee implant that could help more patients in need of knee replacements get them. Read more Planet Earth El Niño could be here by May, new forecast reveals —‬ here’s what it means for summer weather The climate event is poised to supercharge weather extremes and push global temperatures to new highs. Read more In the Sky Planning to stargaze in May 2026? Here’s all the gear you’ll need Here’s all the stargazing gear you need for May’s night sky. Be ready for two full moons, a meteor shower, and a pretty cool solar alignment. Read more Astronomy & Astrophysics Astronomers just mapped one of the largest structures in the universe, long hidden behind the Milky Way’s ‘Zone of Avoidance’ Scientists have mapped the extent of the Vela Supercluster for the first time, and determined that it is one of the largest structures in the universe. Read more Technology Claude Mythos explained: Is Anthropic’s most powerful AI model really too dangerous to release to the public? Anthropic’s Mythos AI is being kept behind closed doors as governments assess what faster, AI-driven vulnerability discovery means for cybersecurity. Read more Your Brain ‘Brain-eating’ amoebas are nearly always fatal. New treatments may change that. Doctors are pulling out new techniques and drugs in an effort to cure devastating brain infections. Read more Physics & Math How likely are you to find a message in a bottle? Have you ever wondered how likely it is to find a message in a bottle, especially an old one? Let’s do the math. Read more Quizzes and Games Earth quiz: What do you know about our planet’s most amazing features? Do you know Earth’s highest peak, deepest point, and more? Test your knowledge about our planet in this quiz. Play now Daily sudoku: Take a break with this classic numbers puzzle Get a new challenge every day with our free online sudoku puzzle. Play now Chain Word: Can you crack our science word of the day puzzle? You have six chances to guess our five letter word of the day. Can you figure it out and top the leaderboard? Play now Feed your curiosity: Get more newsletters from Live Science and our partners for the latest discoveries, mind-bending mysteries and expert insight. Sign Up Follow LiveScience Contact Us: Feedback | Advertise Sign Up | Update Profile | Unsubscribe Privacy Policy | Cookies Policy | Terms and Conditions When you purchase through links in our content, we may earn an affiliate commission. Future US LLC © Full 7th Floor, 130 West 42nd Street, New York, NY, 10036