An ailing astronaut is back on Earth. The crew of four have returned Thursday, ending their space station mission more than a ...
Two Americans and astronauts from Japan and Russia are set to splash down in the Pacific Ocean after a medical issue prompted ...
An astronaut in need of doctors' care departed the International Space Station with three crewmates on Wednesday in NASA's ...
Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.
Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.
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