Humans have been exploring caves for thousands of years. In fact, there are many places in the world where people still utilize them as dwellings. However, besides determining if a cave is a safe ...

The Artemis II launch on April 1, was a success. But not all launches have bee. In 1986, 7 members of the Challenger crew were killed in a shocking disaster.

Introduction -- Fire onboard: Apollo 1 -- Death in a fireball: Soyuz 1 -- Nerves like wire rope: Gemini 6A -- Emergency landing in the Pacific: Gemini 8 -- Death at supersonic speed: X-15 -- Odyssey ...