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This is Countdown, CNN’s newsletter covering NASA’s first time sending humans to deep space in over 50 years -
NASA troubleshoots issues in crucial test ahead of historic moon mission launch -
NASA astronaut Suni Williams retires months after return from troubled mission to orbit -
She was supposed to be the first teacher in space. 40 years later, her mission continues -
NASA could be weeks away from its biggest test in decades -
See February’s full snow moon light up the sky -
4 astronauts will soon take an unprecedented path to the moon. But why aren’t they landing? -
NASA is about to send people to the moon — in a spacecraft not everyone thinks is safe to fly -
Scientists discover molecule in space that hints at origin of life -
Blue Origin pauses trips on rocket that carried Jeff Bezos, Katy Perry and William Shatner to space -
Scientists find unlikely new way to track space junk: sonic booms in the atmosphere -
‘Night-time solar energy’ could one day power satellites -
Supergiant star Betelgeuse is full of mysteries. New observations might solve the biggest one -
Sun releases the largest solar radiation storm ‘in over 20 years,’ forecasters say -
4 astronauts return to Earth after medical issue forces early ISS exit -
4 astronauts depart ISS, leaving behind just 3 crewmates to staff the orbiting lab
