Inside the supermassive black hole that sits in the middle of our galaxy.

This episode is about the possibilities of finding life in our solar system. It has in depth views and information about Mars, Europa, Enceladus, and Titan.

Thirty-five years after leaving Earth, the Voyager spacecraft is going to leave the Solar System to tell the incredible story of a mission that was only supposed to last five years but is still going today.

From the mission that saw Pluto for the first time to the Mars rovers, a new breed of explorers are risking their careers, and even their lives, to lead humanity to worlds we have never seen and tackle the mysteries of life itself.

The discovery of exoplanets pushes scientists to reexamine the origin of the Solar System; the evidence infers a tale of unrestrained collisions and chaos.

An exploration of the dramatic fate of our future descendants, the technology they’ll need to survive the end of this world billions of years from now and our options for colonizing and starting again on a new planet somewhere far from Earth.

Astronomers and researchers are on the hunt for the groundbreaking discovery that confirms extraterrestrial life. Using state-of-the-art technology like the Kepler telescope, scientists examine thousands of exoplanets in search of another Earth.

Go inside the final moments of NASA's Cassini mission, a 20-year project to explore Saturn and its moons. Cassini revealed the secrets of strange new worlds that could harbor alien life, changing everything we know about our Solar System.

The latest discoveries reveal the mysterious and ever-changing nature of our Sun. Astronomers are only now beginning to understand the vast power of our giant star, and new ground-breaking investigations show it like never before.

Gravitational waves may reveal the secrets behind the Big Bang.

When the sun flares up, billions of tons of superheated gas and intense radiation are propelled toward Earth; experts are trying to predict what is coming toward the Earth and how to prepare for this threat.

An in-depth look at how NASA is preparing for its most ambitious and dangerous mission yet; to land a human being on the surface of Mars.

Meteors are a deadly threat for our planet, but new technology may provide a way for Earth to fight back when they attack. Join experts as they uncover the mysteries behind these fascinating and terrifying celestial objects.

Scientists are working to determine if parallel universes exist.

Scientists are finally on the hunt to finally crack the dark secrets of the atoms that make up the universe.

New telescope technology has helped astronomers to explore the never-before-seen invisible universe. These modern marvels ushered in a new age of discovery, revealing the secrets of the greatest enigmas in the cosmos, from giant black holes to supernovas.

Space entrepreneurs are on a race to transform space travel to create a home for humans beyond Earth. In this twenty-first century Space Race, modern day visionaries as they plan regular rocket launches, space hotels, and colonies on Mars.

The story of how a large aerospace company, BAE Systems, began a secret project to counter the force of gravity while NASA simultaneously ran a similar ‘Breakthrough Propulsion Physics’ program.

The search for the first stars of the universe.

World scientists are searching for Dark Energy, the biggest challenge of physics; In Europe, a multi-billion dollar satellite will map the sky from space.

The efforts of the U.S. government and others to combat the threat posed by space junk, which could derail the future of space travel if left unchecked.

A soaring quest through the solar system’s exotic and hidden water realms, from the deep seas below the icy crust of Europa to the vast prehistoric oceans that once existed on Mars billions of years ago.

See the countdown of the greatest moments in NASA's nearly 60-year history.

New discoveries on alien planets reveal violent storms and strange weather.

The genius of Einstein's theory of relativity was the first evidence that black holes might exist, but scientists still do not know what really happens inside of one. Follow the researchers investigating the dark secrets of this mysterious phenomenon.