Watch the moon phases and libration for 2023 in this time-lapsed animation that is set at hourly intervals. [What is the moon phase today?](https://www.space.com/18880-moon-phases.html) [Moon Facts: ...

NASA has released an unprecedented time-lapse video showing the evolution of Kepler’s Supernova Remnant, a cosmic relic of a massive stellar explosion. Captured by the Chandra X-ray Observatory over ...