Earth: A pale blue dot in the universe

During the Vietnam War, North Vietnamese VietCong guerrillas built a vast network of tunnels in the south of the country as part of the insurgency against the South Vietnamese government and their American allies. The tunnel network was a key base and shelter for the North Vietna ...  Show more

In October 1982, Paraguay and Brazil closed the gates of the Itaipu River, beginning to fill the reservoir of what would soon be the world's largest dam. Located in a rainforest on the border between the two countries, the Itaipu dam would go on to supply vast amounts of energy f ...  Show more

Voyager 1 and 2: Still operating after 40 years in the depths of space. Voyager 1 is currently some 20 billion kilometres from Earth travelling at 15.5 kilometres a second. It takes 19 hours for a signal from the spacecraft's 20 watt transmitter to reach home. Voyager 2 is 17 bil ...  Show more

The Voyager 1 spacecraft has traveled farther away from Earth than any human-made object. Candy Hansen and David Grinspoon talk about the Voyager mission, and its humbling perspective of our planet as a tiny blue dot in the blackness of space. 

Tim Peake was the first British astronaut to visit the International Space Station, and is one of only 628 people in human history to have left the Earth’s atmosphere. In Space he tells the human story of space exploration – from launch to landing.

In Samantha Harvey’s ...

In this episode of SpaceTime with Stuart Gary:
<ol><li>Blue Origin selected to build NASA's next lunar lander: NASA has chosen Blue Origin to develop the Blue Moon lander concept, which will transport crews and supplies between lunar orbit and the Moon's surface. This partn ...  Show more