New research of a Martian meteorite suggests that water - an essential ingredient for life - arose in hot springs on Mars 4.4 billion years ago, at the same time as it did on Earth.

Q: My baby is small but my pediatric provider says she is "following the curve" so he is not worried. What does that mean? I'm still worried! A. If your baby is "following the curve" of the growth ...

But when he finally sits down to eat his porridge from a metal bowl, he complains that it’s hard to get enough meat for his family: two wives (not uncommon in the tribe) and 12 children.