Many atheists, polytheists, unbelievers, agnostics and even many Muslims do not know about the greatest miracle that Allah Subhana Wa Ta'ala showed to his slaves. The moon was split into two and the two separated pieces of the moon went in opposite directions. This is unimaginable to us because we know that the Earth depends on the moon for gravity. In reality everything and everyone on Earth at that time should have floated off into space and the Earth convulsed and shaken out of it's orbit, really all life on Earth should have ended that eventful day. Nothing is impossible for Allah Subhana Wa Ta'ala and everything in heaven and earth are at His command and follows His laws.

Is it asking for too much to have a little bit of faith as small as a mustard seed? Believe and your faith will increase, He will guide you and He will give you knowledge and wisdom.

This hadith has been transmitted on the authority of Abdullah b. Mas'ud (who said):

We were along with Allah's Messenger (may peace be upon him) at Mina, that moon was split up into two. One of its parts was behind the mountain and the other one was on this side of the mountain. Allah's Messenger (may peace be upbn him) said to us: Bear witness to this.

This hadith usually associated with Chapter 54, which the Ulama agreed it was revealed in 5th year of Muhammad Prophethood. If this is the case, than in one history book that I came acrross Abdullah b. Mas'ud was around 5 to 6 year old. Beside the word split is not the word used in that chapter. And the word asunder according to commentator is in the past tense. From this alone I can't accept this hadith.