Six days after fierce storms hit numerous mid-Atlantic states, more than 500,000 people still remained without power. Also, Pakistan reopened routes to Afghanistan after having closed them for seven months, and the first trucks rumbled through Thursday.

NASA Earth Observatory released satellite images that show the power outages in the Washington-Baltimore metropolitan area that occurred as a result of a rare, fast-moving "derecho" thunderstorm system on Friday, June 29th. These images were taken with the day/night…