Hint: Between Grade A and Grade B maple syrup, one no longer exists.

By Ruth Tam

In space, green beans taste like grass and sliced strawberries are repulsively sweet. That's according to NASA astronaut Douglas Wheelock, who spent more than 178 days living -- and eating -- aboard the International Space Station and space shuttle Discovery.

By Talia Mindich

Cheek swabs, taste buds tests and tongues dyed blue -- it's all part of an experiment on taste genetics at the Denver Museum of Science and Nature. Reporter Rebecca Jacobson took a test drive through the tasting process.

By Rebecca Jacobson, Inside Energy