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In February 2019, after hurtling 300 million kilometers from Earth, the Japanese space probe Hayabusa 2 landed on the asteroid Ryugu. We follow the team behind the mission, as they sample parts of the asteroid and return it to our planet.
2020 • Astronomy
From the raging inferno of the Sun to the icy beauty of Pluto, experts investigate the secrets that have lingered in the Solar System for billions of years in cutting-edge missions to infinity and beyond.
S2E4 • Mysteries of our Universe: Our Solar System • 2021 • Astronomy
From the furthest reaches of space to our own cosmic backyard, we count down the discoveries that changed everything we know about our universe.
S5E1 • How the Universe Works • 2016 • Astronomy
Now that we’re done with the planets, asteroid belt, and comets, we’re heading to the outskirts of the solar system. Out past Neptune are vast reservoirs of icy bodies that can become comets if they get poked into the inner solar system. The Kuiper Belt is a donut shape aligned with the plane of the solar system; the scattered disk is more eccentric and is the source of short period comets; and the Oort Cloud which surrounds the solar system out to great distances is the source of long-period comets. These bodies all probably formed closer into the Sun, and got flung out to the solar system’s suburbs by gravitational interactions with the outer planets.
22 • Crash Course Astronomy • 2015 • Astronomy
For centuries the giant planets floated on the fringes of the solar system as distant objects in the eyepieces of astronomers. But in December 1973 mankind had its first close encounter with Jupiter. We chart the story of our discovery of these massive planets, Jupiter, Saturn, Uranus and Neptune.
3/8 • The Planets • 2004 • Astronomy
Questions are raised about the search for intelligent life beyond the Earth, with UFOs and other close encounters refuted in favor of communications through SETI and radio telescope such as the Arecibo Observatory. The probability of technically advanced civilizations existing elsewhere in the Milky Way is interpreted using the Drake equation and a future hypothetical Encyclopedia Galactica is discussed as a repository of information about other worlds in the galaxy. The Cosmos Update notes that there have been fewer sightings of UFOs and more stories of abductions, while mentioning the META scanning the skies for signals.
12/13 • Cosmos: A Personal Voyage • 1980 • Astronomy