I understand that air friction cools off an object at low speeds. For example, if you blow on a spoon of hot soup, it cools off. Or if you swing a hot frying pan in the air, it cools off faster. But ...
A report on the Chelyabinsk meteor event earlier this year states Russian meteor blast injures at least 1,000 people, authorities say My question is Why do meteors explode? Do all meteors ...
These terms are frequently used interchangeably by the uninitiated to mean approximately “space rock”. In practical terms, how do their meanings differ?