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Planetary Science

  • Organic matter preserved in 3-billion-year-old mudstones at Gale crater, Mars

    Complex organic compounds may have been detected by the Curiosity rover in ancient martian sedimentary rocks.

  • Organic molecules on Mars

    Data from the Curiosity rover provide evidence for organic molecules in ancient martian rocks and in the atmosphere

  • Background levels of methane in Mars’ atmosphere show strong seasonal variations

    The background level of methane in Mars’ atmosphere varies with season, providing a clue to its origin.

  • The galaxy builders

    Galaxy simulations are finally producing realistic results—and surprising insights into the evolution of the universe.

  • Dunes on Pluto

    Images from New Horizons show dunes on Pluto, probably formed from sand-sized grains of solid methane.

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