A skeleton tells a tale of a shark attack

Plus: Remembering Steven Weinberg, how to determine the age of a star, coronavirus vs. cilia and more

To view this email as a web page, go here.

07/25/2021 How do scientists calculate the age of a star? There are a few different methods to determine the age of a star, but none are perfect. Read More Watch this story on YouTube The coronavirus cuts cells’ hairlike cilia, which may help it invade the lungs Images show that the coronavirus clears the respiratory tract of cilia, which keep foreign objects out of the lungs. Read More A partial skeleton reveals the world’s oldest known shark attack An ancient shark bite victim died quickly, before his body was recovered and buried, a new study finds. Read More Marsquakes reveal the Red Planet boasts a liquid core half its diameter Analyses of seismic waves picked up by NASA’s InSight lander shed new light on the planet’s core and give clues to the thickness of the crust. Read More Missing Antarctic microbes raise thorny questions about the search for aliens Scientists couldn’t find microbial life in soils from Antarctica, hinting at a limit for habitability on Earth and other worlds. Read More Science News is a nonprofit. We depend on our readers to support our journalism. You can help by subscribing for as little as $25. SUBSCRIBE NOW Pterosaurs may have been able to fly as soon as they hatched A fossil analysis shows the flying reptile hatchlings had a stronger bone crucial for lift-off that adults and shorter, broader wings for agility. Read More A century of astronomy revealed Earth’s place in the universe The past century of astronomy has been a series of revolutions, each one kicking Earth a bit farther to the margins. Read More Pikas survive winter using a slower metabolism and, at times, yak poop Pikas endure bone-chilling temperatures on the Qinghai-Tibetan Plateau by reducing their metabolism, and when possible, eating yak poop. Read More The latest picture of a black hole captures Centaurus A’s massive jets Data from the Event Horizon Telescope reveal new details of jets spewing from the supermassive black hole at the center of the galaxy Centaurus A. Read More With Steven Weinberg’s death, physics loses a titan The Nobel laureate advanced the theory of particles and forces, and wrote insightfully for a wider public. Read More Privacy policy  |  Update Profile  | Manage Subscriptions  |   Unsubscribe This email was sent by: Society for Science 1719 N Street NW Washington, DC, 20036, US