Since it explored Pluto in 2015, the New Horizons spacecraft has been zooming toward NASA's most distant target yet. Join the mission team as the probe attempts to fly by Ultima Thule, an object 4 billion miles from Earth.

214 million years ago a gigantic meteorite broke up and impacted Earth. 65 million years ago, the im...

Documentary about the Griffith Observatory, shown at their Leonard Nimoy Event Horizon Theater

European Space Agency astronaut Alexander Gerst and his NASA colleague Reid Wiseman are launched int...

Chaco Canyon, located in northwest New Mexico, is perhaps the only site in the world constructed in ...

Cave paintings and lunar calendars exist in the caves and remains of prehistoric hunters studied rec...

An incredible travel through space and time between the walls of the Paris Observatory, which is cel...

At the edge of our solar system supposedly lies an immense planet. Five to ten times the size of the...

The first feature from Alison McAlpine is a dialogue with the heavens—in this case, the heavens abov...

This feature-length documentary is a portrait of eclipse chasers, people for whom solar eclipses - a...

Billions of years ago, Venus may have harbored life-giving habitats similar to those on the early Ea...

The first American space station Skylab is found in pieces scattered in Western Australia. Putting t...

CERN and the University of California-Santa Barbara are collaborating in the search for the elusive ...

The sun is the miracle that makes everything possible - but also the greatest danger. For the first ...
A series of programs designed for the adult layman who has a curiosity about the skies and the makeu...

Armenian radio-engineer Arevik Sargsyan has struggled throughout her life to preserve ROT54, a giant...