Mass is a challenging concept to tie down, yet it is one of the most crucial measurements in our world. Since the 1800's, we've used a physical artifact as a standard for mass calibration across the ...

Researchers are unlocking secrets of our solar system by analyzing asteroid Bennu samples, some of the most pristine ever collected. These fragments date back 4.5 billion years and contain salts, ...

An image captured by the Asteroid Terrestrial-impact Last Alert System (ATLAS) when it discovered asteroid 2024 YR4. Credit: ATLAS / NASA It's certain that recently discovered asteroid 2024 YR4 ...

koalas and northern hairy-nosed wombats Sara Hashemi The fossil suggests that modern birds evolved before the dinosaur-killing asteroid, perhaps in Antarctica ...