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The Universe is a magnetic minefield, with cosmic bombs detonating everywhere. Our own Sun regularly spits out lethal and spectacular flares, capable of battering our power and communications systems here on Earth, and that's just the tip of the iceberg. Far out in space, spinning star systems crackle and explode, magnetic monsters rip worlds apart, star-quakes shoot out beams of devastating energy, and galactic flamethrowers fire gamma-rays half way across the Universe. Scientists are only now beginning to comprehend the true variety of the Universe's arsenal. As we uncover the most dangerous megaflares in the cosmos, the question is, will we find Earth in the firing line?
S2E4 • How the Universe Works • 2012 • Astronomy
New Horizons took its famed look at Pluto and is now racing toward its next destination… and Alan Stern will take us all on the journey of exploration with it!
3/8 • Curiosity Retreats: 2016 Lectures • 2016 • Astronomy
Now that we’ve finished our tour of the planets, we’re headed back to the asteroid belt. Asteroids are chunks of rock, metal, or both that were once part of smallish planets but were destroyed after collisions. Most orbit the Sun between Mars and Jupiter, but some get near the Earth. The biggest, Ceres is far smaller than the Moon but still big enough to be round and have undergone differentiation.
20 • Crash Course Astronomy • Astronomy
A look at the continuing evolution of the cosmos. What our existence tells us about the universe and how complicated it is. Why are things the way that they are? The spacecraft Artemis initiates launch sequence and begins its 4.7 light year journey to Minerva B - an Earth-like exoplanet.
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Our solar system hides a dark and violent past, and new discoveries reveal that the earth and planets were formed from the destruction of strange alien worlds that came before us.
S6E3 • How the Universe Works • 2018 • Astronomy
In the final episode, Professor Brian Cox journeys to the remotest part of the solar system, a place that the most mysterious planets call home.
5/5 • The Planets 2019 • 2019 • Astronomy