Apollo 15 looked like another major NASA success until questions surfaced about what the crew had quietly carried aboard the mission. The controversy centered on hundreds of unauthorized postal covers ...

Apollo 15 astronaut Al Worden, who circled the moon alone in 1971 while his two crewmates test-drove the first lunar rover, died Wednesday at age 88. Worden died in his sleep at a rehab center in ...

In August of 1971, Apollo 15 set out on what would become one of NASA's most ambitious and scientifically valuable lunar missions. Astronauts David Scott, James Irwin, and Alfred Worden brought a new ...

The groundbreaking researcher who helped create the field of software engineering and whose code helped land NASA win the 20th century space race, has died at 90.