This astronaut just successfully reached the lowest point on Earth. Kathy Sullivan soared to new heights when she became the first American woman to walk in space in 1984. On Monday, she broke a new ...

The catastrophic loss of the Space Shuttle Challenger on Jan. 28, 1986, stands as a haunting reminder of the immense risks and complexities involved in humanity's exploration of space. This event, ...

Add Yahoo as a preferred source to see more of our stories on Google. Florida State University history professor Ronald Doel vividly remembers what he describes as the “deeply emotional moment” of the ...

For centuries, explorers have journeyed to the far reaches of the human world. Centuries ago, explorers sailed upon the ocean and discovered lands unknown to them. New generations of pioneers charted ...

The Challenger disaster's enduring legacy is the educational mission that arose from the tragedy. Challenger Learning Centers were created to honor the crew by inspiring young people in science and ...

The 1986 Challenger space shuttle accident was the first fatal incident involving an American spacecraft during its mission. A Florida State University professor views the tragedy as a learning ...