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A collision with an ancient asteroid may have triggered a global fire storm, burning each tree and grass on the surface of our planet.

Funky world about space tourism. Many companies of space travel have been established. Space shuttle (or space plane) is built and tested. The sprawling universe hotel is

Rapid restriction of pollutants such as carbon black (generated from engine exhaust and vegetable oil, also known as soot) and smog including metal gas and ozone near the ground

Scientists have found the first evidence of the effects of placental air pollution on women.