1. Homo naledi, the newly discovered species of ancient human, explained
  2. New poll shows Bernie Sanders beating Hillary Clinton in Iowa for the first time
  3. Aretha Franklin's lost concert doc is supposedly great, but she won't let anyone see it
  4. President Obama just won the key Senate vote on the Iran deal
  5. 1 in 6 Americans get food poisoning every year. This new law should change that.
  6. There might be a student loan crisis — but not where you think
  7. The visual brilliance of Key & Peel, in 7 impressive sketches
  8. Stat check: No, Planned Parenthood does not get $500 million in federal funds