"The world is strange... but when you look at the details, you find out that the rules are very simple..."
"When a scientist gazes silently up at the sky..."
2011 • People
"... we had a lot of little games, like you would say at the dinner table..."
2011 • People
When Mars One invited citizens to journey to Mars, 200,000 people applied. The final 100 include a military jet pilot, an ER doctor, and an IT consultant -- all willing to leave their loved ones forever. They share a common dream -- and a willingness to endure almost unimaginable isolation.
2/5 • Destination Mars • 2015 • Astronomy
Brian reveals how - as our exploration of the cosmos has deepened - we have even been able to piece together how the universe itself began.
4/5 • Human Universe • 2014 • Astronomy
Today Phil’s explaining the stars and how they can be categorized using their spectra. Together with their distance, this provides a wealth of information about them including their luminosity, size, and temperature. The HR diagram plots stars’ luminosity versus temperature, and most stars fall along the main sequence, where they live most of their lives.
26 • Crash Course Astronomy • 2015 • Astronomy
It’s been conjectured that the center of the Milky Way is swarming with tens of thousands of black holes. And now we’ve actually seen them.
PBS Space Time • 2018 • Astronomy
We think of comets as beautiful glowing balls of light streaking across our skies with their long sweeping tails, yet comets are so much more than just a cosmic firework display. Comets have a uniquely important place in modern science. As time machines from the early universe, they could hold the key to unlock the secrets of the cosmos. Comets could even be the origin of life itself. We follow the incredible odyssey of a comet as it sails through the solar system, watching it's every move as it evolves from a dormant chunk of ice and rock into a tumbling, violently active nucleus engulfed in a gaseous haze. What we learn is a revelation; comets are even more mysterious and fascinating than we had ever imagined.
S2E6 • How the Universe Works • 2012 • Astronomy
This episode documents how gravity has an effect across the universe, and how the relatively weak force creates an orbit. We also see how a neutron star's gravity works. Finally, there is a look back at how research on gravity has enabled us to better understand the cosmos.
3/4 • Wonders of the Universe • Astronomy
