Since the first crew of astronauts reached the International Space Station on Nov. 2, 2000, humanity has had a continuous presence among the stars.

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A planetary scientist who has participated in analog missions describes their value for planning space exploration – and learning about extreme environments on Earth.

Space exploration is as fickle as it is fantastic. From the highest highs to the lowest lows — from the euphoria of the Apollo 11 moon landing in 1969, for example, to the devastation of the Space ...

A Russian Progress freighter launched toward the International Space Station today (Sept. 11) on a mission to deliver several tons of cargo for the station's astronaut crew. A Soyuz rocket lifted off ...

SpaceX launched a new Earth-observation satellite along with several smaller spacecraft from California on Tuesday (Aug. 26). A Falcon 9 rocket carrying Luxembourg's National Advanced Optical System ...

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