Leah finds out more about the world's most active volcano

Last updated at 15:49

Mount Nyiragongo in Africa is one of the Earth's most active volcanoes.

The last time it had a major eruption in 2002 nearly 400,000 people living nearby had to flee their homes.

But the volcano is never quiet - which is why its so interesting to scientists.

Leah's been finding out why some experts have tackled poisonous gases and temperatures hotter than the sun to get a closer look...