In Mercy, there is an argument about how they should determine the beginning of Ramadan. The opinions range from following Saudi Arabia, using a telescope versus using the naked eye much like the days of Muhammed.
Every year, we have a similar scenario where the same points are brought up. Some believe that scientists have the capability to determine the birth of the moon and we should follow their findings. Others believe that they should pursue the path of the Prophet. At the end of the day though, they call Houston to confirm anway.
What does your community do?