What is time? Is time travel possible? For centuries, these questions have intrigued mystics, philosophers, and scientists. Much of ancient Greek philosophy was concerned with understanding the ...

Various researchers have proposed ways in which backward and forward time machines can be built that do not seem to violate any know laws of physics. Remember that the laws of physics tell us what ...

PBS President Paula Kerger has felt the heat from politicians over government funding before. But this time the FCC is ...

His story, along with scientific and anecdotal opinions are the subjects of PBS’ “Nova" streaming on PBS.org ... and that was in the 2014 to 2015 time period. I then left the squadron as ...

With all the sightings of strange objects in the sky, people have been wondering for decades what these things can be.

PBS’ “Nova” series examines the phenomenon of UFOs ... but we’re still in that period of time where it’s transitional. So there are scientists (for whom) it’s still taboo for them.” ...