1:45

Navy expands water sampling area for homes near former naval site in Calverton

Officials discussed the need for more samples and the ongoing cleaning up of toxic chemicals in the soil and groundwater at the site during a meeting Thursday of the Restoration Advisory Board.

0:25

NASA unveils star clusters that resemble a wreath and Christmas tree

The stars in this cluster are remarkably young, with ages ranging from 1 to 5 million years old.