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Born of the Cold War, NASA moves stridently from disastrous rocket tests to the glorious conclusion of the Gemini Program. We experience the massive challenges of sending a man into space and how, despite many setbacks, the astronauts proved that the key element to exploration would be human resourcefulness, in space as well as on the ground. NASA veterans describe these early missions as the hardest of all - the first, uncertain steps towards a new frontier. Building on the success of the pioneering Mercury program, Project Gemini gives NASA the experience and confidence to take the next giant leap - to land men on the Moon.
1/4 • The Space Age: NASA's Story • 2009 • Astronomy
Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING! Knowing that the universe is expanding and how quickly its expanding also allows us to run the clock backwards 14 billion years to the way the universe began - with a bang.
42 • Crash Course Astronomy • 2015 • Astronomy
Today Phil explains how telescopes work and offers up some astronomical shopping advice.
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Beneath Jupiter's swirling clouds lie our solar system's deepest secrets: from its violent youth, through the birth of life to the death of the sun. Now, scientists are unlocking these secrets and discovering that every living thing exists thanks to Jupiter.
S3E3 • How the Universe Works • 2014 • Astronomy
Suppose you placed a camera at a fixed position, took a picture of the sky at the same time every day for an entire year, and overlaid all of the photos on top of each other. What would the sun look like in that combined image? A stationary dot? A circular path? Neither. Oddly enough, it makes a ‘figure 8’ pattern, known as the Sun’s analemma.
The story of how we discovered Dark Matter and what we do and don't know about this mysterious substance. Did Vera Rubin discover the glue holding galaxies together? What composes dark matter? What are Dark Stars and what is super symmetry, the potential answer to the questions around Dark Matter?
4 • Cosmic Front • 2014 • Astronomy