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SCIENCE

NASA, SpaceX sign agreement to enhance space safety

NASA said on Thursday it had signed an agreement with billionaire Elon Musk's SpaceX that would focus on avoiding collisions between the agency's spacecraft and the rocket company's large constellation of satellites.

Space and sea explorer dives to deepest point on Earth

Space and sea explorer Richard Garriott is the first person in the world to have explored the North Pole, the South Pole, flown to the International Space Station and descended to the deepest point on Earth - the Mariana Trench.

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