War and games: Why are there so many WW2 games?
Short answer: Because we'll never stop playing them
NASA unveils plans for first-ever flight on Mars
The Ingenuity helicopter is almost ready to take off
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Earth
Earth is the third planet from the sun, and the densest and fifth-largest of the eight planets in the solar system. it is also the largest of the solar system's four terrestrial planets. it is sometimes referred to as the world or the blue planet. earth formed approximately 4.54 billion years ago, and life appeared on its surface within one billion years.