As the Sun is moving, is it leaving behind a wave of fire in its path? Submitted by misc0007 t3_10vej6o on February 6, 2023 at 6:47 PM in space 34 comments 6
How come photon reach us from billions of years away uninterrupted? Submitted by misc0007 t3_10a8ccv on January 12, 2023 at 7:31 PM in space No comments 3