In the 1950s and early '60s, a small band of high-altitude pioneers exposed themselves to the extreme forces of the space age long before NASA's acclaimed Mercury 7 would make headlines. Though largely forgotten today, balloonists were the first to venture into the frozen near-vacuum on the edge of our world, exploring the very limits of human physiology and human ingenuity in this lethal realm.
2016 • Astronomy
Now that gravitational waves are definitely a thing, it’s time to think about some of the crazy things we can figure out with them. In some cases we’re going to need a gravitational wave observatory - in fact, we've already built one.
The dream of sending humans to Mars is closer than ever before. In fact, many scientists think that the first person to set foot on the Red Planet is alive today. But where should the first explorers visit when they get there? Horizon has gathered the world's leading experts on Mars and asked them where would they go if they got the chance - and what would they need to survive? Using incredible real images and data, Horizon brings these Martian landmarks to life - from vast plains to towering volcanoes, from deep valleys to hidden underground caverns. This film also shows where to land, where to live and even where to hunt for traces of extraterrestrial life.
Astronomer Shep Doeleman and his team are on a mission that will challenge the theories of Albert Einstein and could pave the way to a revolution in physics: to capture the first-ever image of a black hole. To do this, they must link eight multimillion-dollar observatories around the world to a spot 26,000 light years away. It's the equivalent of spotting an orange on the moon, but after 10 years of planning and the combined brainpower of over 200 international scientists, the team feels they're ready to make scientific history.
2019 • Astronomy