Cosmology

  1. Particle Physics

    Sam Ting tries to expose dark matter’s mysteries

    Particle physicist Sam Ting is applying a meticulous approach to analyzing positrons in space, testing whether they can reveal clues about dark matter.

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  2. Astronomy

    Hubble telescope sees quadruple

    A galaxy bends light to create four images of the same supernova.

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  3. Quantum Physics

    Trying to get the down-low on gravity

    A twist on a classic quantum mechanics experiment could lead to the discovery of elusive gravitons.

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  4. Cosmology

    The past according to Planck: Cosmologists got a lot right

    New results from the Planck satellite largely support cosmologists’ theories, but leave the door open for new discoveries.

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  5. Astronomy

    Finding joy and inspiration in the pursuit of knowledge

    Editor in Chief Eva Emerson ruminates on the power of knowledge, and the ways scientists are refining how we think about the aging human brain, far away comets and even the speed of light.

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  6. Astronomy

    First stars born later than thought

    New results from the Planck mission indicate that the first stars began to shine 550 million years after the Big Bang.

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  7. Cosmology

    Dust erases evidence for gravity wave detection

    The claimed detection of primordial gravitational waves does not hold up after taking into account galactic dust, a new analysis concludes.

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  8. Quantum Physics

    Top 10 scientific mysteries for the 21st century

    Solving the Top 10 scientific mysteries facing the 21st century will not be all fun but could be mostly games.

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  9. Physics

    How blueshift might beat redshift

    Even though the expanding universe makes light redder, light emitted by collapsing stars and dust clouds could appear unusually blue.

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  10. Astronomy

    Gamma-ray bursts may repeatedly wipe out life

    Brief bursts of high-energy radiation may sterilize most planets across the universe, hampering the chances for widespread intelligent life.

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  11. Cosmology

    Most precise snapshot of the universe unveiled

    New results from the Planck satellite provide the most detailed look yet of the makeup of the universe.

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  12. Physics

    Negative mass might not defy Einstein

    Repulsive matter could have played a role in the early universe, a computational study finds.

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