A mysterious star hundreds of light years away might hold the hard evidence of extraterrestrial life, as experts speculate that its bizarre behavior points to proof of a massive alien-made megastructure.

Jupiter, Saturn, Uranus, and Neptune are homes to the deadliest storms in our solar system, and new discoveries reveal the secrets of this hellish alien weather, helping experts understand these alien worlds better than ever.

New evidence is rewriting the history of our solar system, and using the latest discoveries and cutting-edge tech, experts are investigating if our cosmic neighborhood once featured oversized alien Earths and a second Sun.

New discoveries reveal the apocalyptic consequences of an asteroid strike, and using cutting-edge science, experts are racing to develop tech that can destroy these deadly killers before they unleash Armageddon.

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

The new discovery of seven alien Earth-like planets in a faraway solar system is a major milestone in our hunt for extraterrestrial life, and experts investigate the secrets of TRAPPIST-1's mysterious worlds to reveal if we're truly alone in the universe.

NASA’s brand-new Mars rover is on the hunt for alien life, and with the help of cutting-edge engineering, scientists embark on a search for fossilized remains, which might prove the Red Planet was once home to a vast ocean and extraterrestrial life.

Recent discoveries by NASA's Juno mission reveal new secrets about Jupiter, a strange world that is more like a star than a planet. As scientists uncover what lies beneath its violent storms, our understanding of the solar system could change forever.

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.

Generations of astronomers have attempted to solve the mysteries of Jupiter, the most fierce and extreme planet in the Solar System, and now experts reveal new evidence that could unlock the secrets of why this planet is so strange.

NASA's mission to Pluto gathered the first close-up pictures of this strange and distant world, and now, new discoveries and the latest science reveal the secrets of its alien features, which could point to extraterrestrial life.

New research into our solar system's volcanoes reveal shocking discoveries.

NASA's Juno mission is the closest we've ever explored Jupiter, and its incredible images reveal the Gas Giant's deepest secrets and how this deadly world helped create our solar system.

Discover the cutting-edge race to build the ultimate space weapon.

New discoveries reveal the apocalyptic threats that our Sun poses to life on Earth, and using the latest tech, experts are uncovering the deadly secrets of our solar system's star.

Across the Milky Way, galaxies are going dark, and scientists don’t know why the stars are losing their shine; astronomers race against time to uncover the truth behind how galaxies are born and how they die before all of the lights go out.

New discoveries reveal that our Moon could be the next home for human life, triggering a new international space race to make it the home of humanity's first space colony.

New discoveries reveal that everything known about the moon could be wrong; investigators race to understand the mysteries of its dark and violent past.

Experts determine whether an alien object is evidence of an extraterrestrial contract or not.

Einstein predicted strange cosmic phenomena known as white holes, but scientists have yet to prove they exist; as experts investigate the tiny black holes that hide in the most ancient parts of the universe, they might finally find the smoking gun.

Astronomers finally unlock the mysteries of Uranus and Neptune.

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.

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

Gravitational waves may reveal the secrets behind the Big Bang.

The latest NASA missions to Mars might finally reveal if it is home to alien life, and using these brand-new discoveries, experts are rethinking everything they know about the Red Planet.