The universe is vast and filled with celestial bodies of incredible scale. Among these, stars stand out as some of the most awe-inspiring objects. Determining the "biggest" star can be interpreted in several ways, primarily by mass or by radius. While the most massive stars are not always the largest in physical size, both categories contain true giants.
Asteroids are rocky remnants from the early Solar System, chunks of stone and metal that range in size from pebbles to mountains. Most of them orbit peacefully in the asteroid belt between Mars and Jupiter, but occasionally gravitational forces can nudge them toward Earth. The largest asteroid, Ceres, is almost 1,000 km across, while the one that likely killed the dinosaurs was roughly 10 km wide. Even relatively small asteroids can cause tremendous damage for example, the space rock that created Arizona's famous Meteor Crater was only about 45 metres across, yet it generated a crater just over 1km wide.
