1. Asteroids are relics from the time the solar system was born
Billions of years ago, when the solar system was forming, space dust and debris fused to form rocks and rubble. As the rocks churned, they rammed into one another, merged and formed planets and moons.
Asteroids are the leftover rubble from those times. They have remained unchanged over billions of years.
Two new studies from the Indian Institute of Bombay (IIT Bombay), Mumbai, show the importance of defects in the arrangement of atoms in a crystal, called dislocations, in shaping the physical properties of metallic alloys.