Related topics: international space station ยท astronauts

NASA shoots for the Moon, on its way to Mars

NASA's most powerful rocket yet is set to blast off Monday on a mission to take humans back to the Moon, but fueling the spacecraft gave the US space agency trouble hours before the launch.

Skydiving salamanders live in world's tallest trees

Salamanders that live their entire lives in the crowns of the world's tallest trees, California's coast redwoods, have evolved a behavior well-adapted to the dangers of falling from high places: the ability to parachute, ...

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