"For asteroids of the size scale relevant to planetary defense (i.e., ∼50-500 m), the mass can only be directly measured ...

Estimating a mass for a potentially hazardous asteroid (PHA) is perhaps the single most important thing to understand about ...

Identified as the most complete Australopithecus fossil discovered to date, "Little Foot" was buried in sediments whose movement and weight caused fractures and deformations, making analysis of its ...