Astronomy

Newly Found Star J0524-0336 Has Unusually High Lithium Levels, Posing Major Questions for Astronomers TL;DR Astronomers have identified a massive star, J0524-0336, about 30,000 light-years away, which is 30 times larger than the sun and contains 100,000 times more lithium. This unexpected lithium abundance challenges current models of stellar evolution, as stars typically fuse light…

A Giant Asteroid Smashed Into Ganymede, Creating the Solar System’s Largest Impact Crater and Tilting Its Axis TL;DR About 4 billion years ago, a massive asteroid, roughly 10 to 15 times larger than the one that caused the dinosaurs’ extinction, struck Ganymede, creating the largest impact crater in the solar system. The collision was powerful…

A 7-billion-year-old grain of stardust from the Murchison meteorite is older than our Sun. Key Takeaways Scientists found 7-billion-year-old stardust inside the Murchison meteorite, making it the oldest solid material on Earth. The stardust predates our Sun and solar system, revealing insights into the galaxy’s history. Researchers dated the grains by analyzing their exposure to…