The Messenger said: "The sun and moon are two of God's signs. They are not eclipsed because of the death or life of anyone. So when you see that [i.e. an eclipse], pray and supplicate until that which you are experiencing [i.e. the eclipse of the sun or moon] is uncovered."(Reported by al-Bukhari and Muslim).
Subhanallah. In the Boston area, we just experienced a very visible, truly spectacular total lunar eclipse (the totality lasted about 1 hour!), during which we were blessed with the opportunity to engage in the Prayer of the Lunar Eclipse (salat khusuf al-qamar), a confirmed practice of the Prophet Muhammad (salla llahu `alayhi wa-sallam). Al-hamdu li-llah. The students at Harvard gathered for prayer during the Eclipse. I regrettably missed the opportunity to be with them and prayed by myself at home.