For decades some have suspected that there might be others out there, intelligent beings capable of communicating with us, even visiting our world. It might sound like science fiction, but today scientists from across the globe are scouring the universe for signals from extraterrestrials. Scientists have been searching the cosmos for strange signals like the Lorimer Burst for more than 50 years. The film ends with scientists' latest search for extraterrestial intelligence. Horizon obtained exclusive access to film researchers at the Green Bank Telescope searching for radio signals from Tabby's Star, a star so mysterious that some scientists believe it might be surrounded by a Dyson Sphere, a vast energy collector built by advanced aliens.
In this talk-show with the popular astrophysicist Neil deGrasse Tyson, Bill explores a variety of topics, including the nature of an expanding, accelerating universe (and how it might end), the difference between “dark energy” and “dark matter,” the concept of God in cosmology and why science matters.
While much of the information on our universe that we have acquired through studying the stars ultimately leads to more questions, this program accurately conveys what information we've learned since we began using Hubble and other super telescopes to explore distant regions of space.
2016 • Astronomy
New discoveries help experts in their search for the first alien moon outside our solar system, which could be Earth-like worlds with the potential for life; they haven't found any, but 21st-century methods might change everything.