Questions with the keyword 'galaxy'

• How many stars are in our galaxy ? by parfrey72 and 1 other. to Mike, Pip, Tianfu, Tim, Tom Comments: (No comments so far )
• how long would it take a laser beam to reach the andromeda galaxy? by lordofdeadspace2 to Mike, Pip, Tianfu, Tim, Tom Comments: (No comments so far )
• how many galaxies do you think there are in the entire universe by poppxx to Tom Comments: (So far, one comment )