Science & Society
- Planets
Defining planethood
Did Pluto deserve to be demoted from the rank of planet in the solar system?
- Space
Dwarf planet discord
A dwarf planet at the fringes of the solar system finally gets an official name.
- Planets
Pluto and the plutons
A new definition would raise the number of planets in the solar system from 9 to 12.
- Archaeology
Sahara cemetery
Archaeologists uncover the remains of a Stone Age settlement in the Sahara desert.
- Humans
Stone tablet may solve Maya mystery
A panel covered with hieroglyphs appears to connect little-known ruins with an ancient Maya city.
- Humans
A Plankhouse Past
Unearthing an ancient Native American village provides glimpses of early life on North America's west coast.
- Archaeology
Glassworks in ancient Egypt
Ancient Egyptians were producing and exporting glass more than 3,000 years ago.
- Humans
An ancient childhood
Knowing what the lives of children were like long ago can help us understand how cultures and societies change.
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- Genetics
Gene sleuths track down ivory sources
DNA testing of a tusk's ivory can help identify where the elephant came from.
- Environment
A newspaper’s hidden cost
Getting a newspaper electronically would be much better for the planet than receiving the paper version.
- Archaeology
Symbols from the Stone Age
Rocks found in a cave suggest the people used objects and colors to stand for other things more than 90,000 years ago.
