USA TODAY spoke with apple breeders, growers and researchers to find the secrets of one of America's most popular fruits.

For many decades, supermarkets sold just a few varieties of apples. But now, grocery stores carry more than 20 apple ...

What's your favorite apple? Maybe it's the crowd-pleasing Honeycrisp, the tart Granny Smith or the infamous Red Delicious.

What's worse than trying to satisfy a craving for a juicy apple only to bite into one that's not quite ripe? Look for ...