Stargazing Challenges

Jocelyn Bell was a graduate student at Cambridge in 1967 when she pushed through the skepticism from her superiors to make one of the greatest...

The history of the Ariane rocket is a space epic that has seen Europeans unite and innovate to make a place for themselves in the space race. Faced...

Archival material from the original NASA film footage – much of it seen for the first time – plus interviews with the surviving...

Discover how the big, bold ideas of Silicon Valley are helping launch a new era of private space exploration in this half-hour KQED Science...

It is the birth of neutrino astronomy. For the first time, astrophysicists can detect extra-terrestrial neutrinos in ice on the South Pole. The...

Billions of years ago, Venus may have harbored life-giving habitats similar to those on the early Earth. Today, Earth's twin is a planet knocked...

For thirty years, NASA's Hubble Space Telescope has discovered new alien worlds, black holes, and the age of the universe itself; NASA astronauts...

Over the centuries only few caravans dared to cross the northern route of the silk road that today lies in the territory of Kazakhstan. In this...

Orson Welles — with contributions from scientists George Wald, Carl Sagan, and others — examines the possibility and implications of...