 |  |  |  |
| Amelia Earhart was the first woman pilot to cross the Atlantic. | Bertrand Piccard has circum- | Chiaki Mukai is the first female Japanese astronaut. | Daniel Boone was a great American pioneer. |
 |  |  |  |
| Ellison S. Onizuka has a legacy that continues to live on after the Challenger disaster. | Ernest Shackleton in 1901 sailed out in the Discovery to explore the Antartic | John Glenn was a hero in 1962 and again in 1998. | John Wesley Powell is an internationally venerated advocate for preserving biodiversity. |
 |  |  |  |
| Libby Riddles won the Iditarod dog sled race in 1985. | Mae Jemison dreamed of going to space since childhood. | Marco Polo a Venetian explorer was born in 1251. | Robert Ballard Founder of the Jason Project conducts scientific expeditions around the world with students. |
 |  |  |  |
| Sacajawea guided Lewis and Clark across the northwestern territories. | Sally Ride was the first American woman to go into space. | Sergei Vladimir Ilyushin, Jr. : the first man in space? | Sir Douglas Mawson led the first research expedition into Antarctica. |
 |  | ||
| Steve Fossett circum- | Sylvia Earle is a marine biologist and ambassador of the oceans. |