Physics
Why does time only move forwards? Possibly just because we’re ignorant
Features
Kepler space telescope
Space
Tardigrades could survive interstellar travel in extreme hibernation
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Space
Can Blue Origin help replace the International Space Station?
Analysis
Space
Satellites and junk are littering space and ruining our night skies
Features
Space
Steve Chien interview: Why NASA is inventing curious AI for deep space
Features
Space
How the Hubble Telescope opened a new window on the cosmos
Comment
Space
UAE will send spacecraft to visit Venus and land on an asteroid
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