sentences:  The Discovery Center's mission is to inspire every generation to reach for the stars, through engaging, artful and entertaining activities that explore astronomy, aviation, earth and space science.The McAuliffe-Shepard Discovery Center offers of interactive science and engineering exhibits, outdoor exhibits including a full-sized replica of a Mercury-Redstone rocket, a full-dome digital planetarium, an observatory, science store, café, portable digital planetarium and a full complement of on- and off-site educational programs.The McAuliffe-Shepard Discovery Center began as a stand-alone planetarium serving as the official State of New Hampshire memorial to Christa McAuliffe.