April 29, 2015

In 1998, a team led by a former Harvard graduate student shocked the astrophysics world by publishing results that said the expansion of the universe, believed to be gradually slowing, was instead accelerating.

April 20, 2015

Luke Skywalker's home in "Star Wars" is the desert planet Tatooine, with twin sunsets because it orbits two stars. So far, only uninhabitable gas-giant planets have been identified circling such binary stars, and many researchers believe rocky planets cannot form there.

April 14, 2015

Become an astronomer for a day! Enjoy telescope tours, interactive multimedia exhibits, hands-on activities, live demonstrations, prizes, and our ever-popular Scientist Cafe, where visitors can chat with local astronomers to find out what's new in the universe.