Discovering Hale Bopp

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 2008, Kenyan President Mwai Kibaki and his rival Raila Odinga signed an unprecedented power-sharing deal to end a wave of violence that had left more than 1,200 people dead.Kibaki would remain president, while Odinga would become prime minister, a role created as part of the s ...  Show more

Melvyn Bragg and his guests discuss comets, the 'dirty snowballs' of the Solar System. In the early 18th century the Astronomer Royal Sir Edmond Halley compiled a list of appearances of comets, bright objects like stars with long tails which are occasionally visible in the night ...  Show more

The recent Rosetta mission to image and land a probe on a comet was an astounding achievement. Rosetta took thousands of photos mapping the entire surface of comet 67P/Churyumov-Gerasimenko , as it dramatically changed over 2 years. This week analysis of 18000 67P pictures are ou ...  Show more

Scientists have used data collected by an exquisitely sensitive instrument on the European Space Agency’s Rosetta probe to find a stunning collection of complex organic molecules at the comet known as Chury. The findings are an important step toward understanding the origin of ...

In 1990, NASA launched the historic mission which put into orbit the Hubble Space Telescope. The orbiting observatory has revolutionized astronomy and allowed us to peer deeper than ever before into the Universe. We hear from astronaut, Kathryn Sullivan. Plus, China's cure for ...