A century ago there was a "Great Debate" among astronomers if galaxies exist. Today, a new debate has arisen: How old is the Universe? Join Wendy Freedman, John and Marion Sullivan University Professor of Astronomy and Astrophysics at the University of Chicago, as she explores the options in this newest and most fascinating question.  

Join us for a mission debrief live chat of our World War II: Victory in Europe episode to ask your questions about World War II airplanes and  Tune in on the STEM in 30 Facebook...

Sheperd Doeleman, founding director of the Event Horizon Telescope Collaboration, he talks about how his team accomplished the historic achievement was of imaging a black hole.

On the 40th anniversary of the volcanic eruption of Mount St. Helens, join us for a mission debrief live chat of our Shake, Rattle and Roll episode of STEM in 30. Bring your...

This year we celebrate the 30th anniversary of the launch of the Hubble Space Telescope. For three decades thousands of astronomers from around the world have exploited the remarkable capabilities of the telescope and its scientific instruments to revolutionize our understanding of the universe.