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  1. Planetary Science

    Pluto’s icy landscape comes into view

    The New Horizons flyby reveals varied terrain and evidence of active geology on Pluto.

    By Christopher Crockett
  2. Planetary Science

    Ice flows, haze offer more clues to Pluto’s geology

    New Horizons’ latest data reveal more hints about Pluto’s shrinking atmosphere and possible underground ocean.

    By Ashley Yeager
  3. Space

    Best cosmic ‘cradles of life’ may be elliptical in shape

    Giant elliptical galaxies might harbor up to 10,000 times as many Earthlike planets than galaxies like the Milky Way.

    By Christopher Crockett
  4. Astronomy

    Kepler telescope identifies new ‘habitable zone’ planet

    A new analysis of data from NASA’s Kepler mission has uncovered a planet orbiting a sunlike star that could be Earth’s “cousin.”

    By Sarah Schwartz
  5. Planetary Science

    First craters on Mars spotted 50 years ago

    Fifty years ago, Mariner 4 revealed that the Red Planet was peppered with craters. Now we know pockmarks are common on many other planets and moons, too.

    By Ashley Yeager
  6. Space

    Search for E.T. gets financial boost

    Search for extraterrestrial intelligence gets a $100 million donation from a Russian entrepreneur.

    By Christopher Crockett
  7. Planetary Science

    Latest dispatch from Pluto reveals frozen plains, icy hills and more

    Polygon plains, windswept hydrocarbons, and more moons were tantalizing details revealed about Pluto in the latest data from New Horizons.

    By Christopher Crockett
  8. Planetary Science

    Mission to Pluto: Live coverage

    The New Horizons spacecraft is scheduled to fly by Pluto on July 14. Check back often for frequent updates on the status of the mission, updates from mission control, and the latest images.

    By Christopher Crockett
  9. Neuroscience

    Putting time’s mysteries in order

    Investigating both the orderly and disorderly dimensions of time provides the focus for a special issue of Science News.

    By Eva Emerson
  10. Astronomy

    Source of blazars’ super brightness comes into focus

    Astronomers take a close look at a blazar, a galaxy whose central black hole emits gamma rays and other high-energy material toward Earth.

    By Andrew Grant
  11. Planetary Science

    Pluto: A timeline of 85 years of discovery

    Several observations in the last 85 years have given astronomers a little more information about Pluto, and the July 2015 flyby will offer the closest look yet at the solar system's far-flung satellite.

    By Christopher Crockett
  12. Physics

    The arrow of time

    Gravity may explain how time always runs forward, even though the laws of physics should permit it to run backward.

    By Andrew Grant
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