Climb with volcano experts to the summit of Nyiragongo, a highly active volcano in the Democratic Republic of the Congo. Twice in recent memory it has erupted, devastating Goma, a neighboring city of one million people. To investigate when it might erupt next, scientists... More

Explore Nyamuragira in central Africa, one of the world’s most active and mysterious volcanoes. Decades of civil strife have prevented scientists from investigating the volcano, but a brief pause allows an international team of experts to fly by helicopter to the summit... More

NOVA takes you inside the operating room to witness organ transplant teams transferring organs from donors to recipients. Meet families navigating both sides of a transplant, and researchers working to end the organ shortage. Their efforts to understand organ rejection,... More

Follow the race to rebuild the Old Blenheim Bridge in New York State, an icon of 19th century American engineering, destroyed by Hurricane Irene in 2011. Watch a team of elite craftsmen faithfully reproduce the massive, intricate wooden structure under grueling time pressure... More

Hurl your star across spacetime, hitting targets and avoiding celestial hazards in your quest to earn a star that's big and bright enough to go supernova. As you play through the game’s 50-plus levels, you’ll meet new cosmic objects like small but dense... More