Are there other Earth-like planets filled with liquid oceans, rocky continents and life besides ours out there in space? Astronomers seek the answer with spectroscopy, direct imaging and telescopes.

This documentary series follows researchers and scientists as they tackle unanswered questions about life and the cosmos.

Darwin IV is a planet 6.5 light years from Earth, with two suns and 60 percent gravity. Take a futuristic mission to assess this planet for the possibility of life.

The universe has long captivated humanity with its immense scales of distance and time. But how big is it really? Find out through this short documentary.

Look into the sun with Dr. Robert Stein, a professor of Physics and Astronomy at Michigan State Universe. He has long envisioned a day when he could use supercomputer programs to "see" through the roiling surface of the sun and glimpse its dynamic interior.

Prof. Jim Al-Khalili tells the story of light and darkness in terms of their astronomic importance, and their role in our understanding of the universe.

The Hubble Space Telescope has led us into an era of amazing new scientific discoveries about our universe. Here are some of those discoveries convoluted into a documentary film.