Science Science Notebook

  • Why does Africa have so many languages?

    Studies show the African continent contains the highest genetic diversity of any place in the world, but whether or not that correlates to the highest variation in language isn't as clear.

  • Why do humans have chins?

    Humans are the only primate with a chin, an adaptation that reflects the emergence of complex social networks among our ancestors.

  • Why NASA's discovery of a distant exoplanet is important

    After finding a more accurate way to determine the location of faraway planets, NASA hopes to better understand the distribution of planets in the Milky Way.

  • The surprising science behind the aluminum soda can

    Most of us interact with soda cans every day, so it's easy to forget that their design is the result of brilliant engineering and manufacturing carefully honed over decades. The modern soda can can hold beverages at pressures up to six atmospheres, yet is less than a tenth of a millimeter thick.

July 2, 2015

Photos of the day 07/02

World record-holding pole vaulter Renaud Lavillenie of France jumps in front of the Eiffel Tower as he stands on the roof of a boat on the Seine River after a news conference in Paris, Thursday. Lavillenie will attend the IAAF Diamond League athletics meeting at the Stade de France Stadium in Saint-Denis near Paris on July 4.

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