Landing humans on Mars will be hard, but keeping them alive will be even harder. NASA scientists are on the verge of designing some of the most innovative rockets and training the astronauts who will pilot them.
Scientists and modern explorers are determined to send humans to Mars; as NASA builds its first spacecraft to carry astronauts to Mars and tech visionaries devise extraterrestrial colonies, future on Mars might be a reality.
2014 • Astronomy
NASA’s Curiosity mission is on a quest to find life on Mars, but what they uncover could reveal far more than what anyone expected
2014 • Astronomy
The possibility of a human civilization on Mars has seemed like a fantasy -- until now. We go behind-the-scenes at SpaceX, where Elon Musk shows us just how real this fantasy can be.
2014 • Astronomy
We examine what lies beneath Mars’s surface and uncover answers to some of the mysteries that have stumped scientists for decades
2014 • Astronomy
Landing humans on Mars will be hard, but keeping them alive will be even harder. NASA scientists are on the verge of designing some of the most innovative rockets and training the astronauts who will pilot them.
2014 • Astronomy
NASA launches its most ambitious hunt for traces of life on Mars, landing a car-sized rover in a rocky, ancient river delta. The rover will stow samples for possible return to Earth and test technology that may pave the way for human travel to Mars.
Double stars are stars that appear to be near each other in the sky, but if they’re gravitationally bound together we call them binary stars. Many stars are actually part of binary or multiple systems. If they are close enough together they can actually touch other, merging into one peanut-shaped star. In some close binaries matter can flow from one star to the other, changing the way it ages. If one star is a white dwarf, this can cause periodic explosions, and possibly even lead to blowing up the entire star.
34 • Crash Course Astronomy • 2015 • Astronomy
The incredible secrets of the moon are revealed; the moon might be responsible for life on Earth.
S4E6 • How the Universe Works • 2015 • Astronomy
Before the ISS, there was Skylab: NASA’s first mission to build a home beyond our planet. This is the spectacular story of the first astronauts who lived on a space station, and the incredible things their work taught us about what it takes for human beings to live, work, and play in outer space.
The Milky Way is our neighborhood in the universe. It’s a galaxy and there are many others out there. Galaxies contain gas, dust, and billions of stars or more. They come in four main shapes: elliptical, spiral, peculiar, and irregular. Galaxies can collide, and grow in size by eating each other.
38 • Crash Course Astronomy • 2015 • Astronomy
Commander Stephen Hawking takes another journey in his space ship, the SS Hawking, this time to Venus, the Sun and out to the Eagle Nebula...but things don't always go according to the flight plan...
2018 • Astronomy