New measurements show moon has hazardous radiation levels

Future moon explorers will be bombarded with two to three times more radiation than astronauts aboard the International Space Station, a health hazard that will require thick-walled shelters for protection, scientists reported ...

Astronauts: SpaceX Dragon capsule 'came alive' on descent

The astronauts on SpaceX's first crew flight said Tuesday that their Dragon capsule "came alive" and sounded like a beast as it descended through the atmosphere to a smooth splashdown in the Gulf of Mexico.

'Bummed out': SpaceX launch scrubbed because of bad weather

The launch of a SpaceX rocket ship with two NASA astronauts on a history-making flight into orbit was called off with less than 17 minutes to go in the countdown Wednesday because of thunderclouds and the risk of lightning.

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