6. Oldest primate discovered – The oldest primate skeleton to date was found. It belonged to a species named Archicebus achilles, which lived 55 million years ago (illustration pictured). In modern times, we learned about a cute new species of mammal: The olinguito.
8. Higgs boson is real, really – Physicists at CERN announced that they are even more sure that the particle they thought was the Higgs boson is indeed the Higgs boson. The particle was also the subject of the 2013 Nobel Prize in Physics.
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Photos:Photos: Top science stories of 2013
9. Universe gets better baby photo – The European Space Agency's Planck space telescope gave us the best baby picture of the universe yet, using light left over from the Big Bang.