We strip apart the Sun and tear off boiling seas of plasma, light particles, and force fields layer by layer to explore the secrets that lie beneath the surface of Earth’s powerhouse.
We strip apart black holes, one of the most feared objects in the universe, and tear off swirling galaxies of stars, planets, and cosmic dust layer by layer to explore the secrets of these hungry menaces lurking right on our cosmic doorstep.
2014 • Astronomy
We strip apart asteroids and peel back surfaces, slice open craters, and exploding out rocks layer by layer to explore these miniature worlds and the secrets of the early solar system.
2014 • Astronomy
We strip apart bizarre planets and strange moons and peel away impenetrable atmospheres, icy crusts and alien oceans layer by layer to reveal the secrets to extraterrestrial life.
2014 • Astronomy
Gamma-ray bursts are not only incredible to study, but their discovery has an epic story all its own. Today Phil takes you through some Cold War history and then dives into what we know. Bursts come in two rough varieties: Long and short. Long ones are from hypernovae, massive stars exploding, sending out twin beams of matter and energy. Short ones are from merging neutron stars. Both kinds are so energetic they are visible for billions of light years, and both are also the birth announcements of black holes.
40 • Crash Course Astronomy • 2015 • Astronomy
Venus is a hellish alien world believed to be impossible to extraterrestrial life; but new discoveries reveal shocking evidence within its deadly atmosphere and on its strange surface, all pointing to a possible future for planet Earth.
S1E4 • Mysteries of our Universe: Our Solar System • 2020 • Astronomy
To discover what created the Milky Way, scientists have to look back 13.7 billion years to the moments just after the Big Bang.
S3E7 • How the Universe Works • 2014 • Astronomy
Black holes are not the violent monsters people think they are, and new discoveries reveal that they might have been essential to creating stars, giving light, and building the universe itself.
S7E4 • How the Universe Works • 2019 • Astronomy
Dallas Campbell looks back through almost 50 years of the Horizon archives to chart the scientific breakthroughs that have transformed our understanding of the universe. From Einstein's concept of spacetime to alien planets and extra dimensions, science has revealed a cosmos that is more bizarre and more spectacular than could have ever been imagined. But with every breakthrough, even more intriguing mysteries that lie beyond are found. This great journey of discovery is only just beginning.
Since its formation in the early 60’s, NASA has continued to be the leading power in space exploration. Working with other space agencies, it has contributed substantially to the ongoing exploration of our universe, achieving incredible firsts that span the decades.
2/2 • NASA's Ten Greatest Achievements • 2016 • Astronomy