* Race matters to 3-month-olds, study finds:
Early in life, many of us start to prefer faces of people from our own race to others, according to researchers.
* Dark energy might not exist, scientists say:
Some theorists propose corrections to the law of gravity could explain effects usually attributed to a mysterious force.
* Tomb discoveries stun:
Archaeologists report the largest ancient Greek tomb found, as well as the first tomb uncovered in Egypt’s Valley of the Kings since that of KingTut.
* Predicting the next hit:
Why are some songs so much more popular than others? A study has found quality has a bit to do with it, but peer influence much more.