Cosmology

  1. Astronomy

    Dark matter is MIA in this strange galaxy

    A galaxy without dark matter bolsters the case that the invisible substance really exists.

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  2. Cosmology

    Renowned physicist Stephen Hawking dies at 76

    Beyond his research contributions, Stephen Hawking popularized black holes and the deep questions of the cosmos.

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  3. Cosmology

    Here’s when the universe’s first stars may have been born

    The first stars lit the cosmos by 180 million years after the Big Bang, radio observations suggest.

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  4. Cosmology

    Remembering Joe Polchinski, the modest physicist who conceived a multiverse

    String theorists lament the death of Joe Polchinski, one of their field’s most esteemed and respected thinkers.

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  5. Cosmology

    The way dwarf galaxies move puts a new spin on galaxy formation

    Distant dwarf galaxies orbit a larger galaxy in a coordinated loop, rather than randomly as expected. The finding could challenge theories of dark matter.

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  6. Astronomy

    Universes with no weak force might still have stars and life

    An alternate universe that lacks one of the four fundamental forces might still have galaxies, stars, planets and perhaps life, a new study suggests.

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  7. Particle Physics

    Clumps of dark matter could be lurking undetected in our galaxy

    Dark matter, assumed to form featureless blobs, might clump together into smaller objects.

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  8. Cosmology

    Readers wonder about the universe’s expansion and more

    Readers had questions about the universe's accelerating expansion, a hidden void in the Great Pyramid of Giza and what happens to human waste in space.

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  9. Astronomy

    White dwarf’s inner makeup is mapped for the first time

    The first map of the internal composition of a white dwarf star shows these stellar corpses contain more oxygen than expected, challenging stellar evolution theories.

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  10. Astronomy

    86 stars get official names

    The International Astronomical Union has released 86 newly official star names, based, in part, on historical star names from various indigenous cultures.

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  11. Astronomy

    The most distant quasar ever spotted hails from the universe’s infancy

    The new record-holder for faraway quasars comes from a period of rapid change in the universe.

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  12. Cosmology

    Simulating the universe using Einstein’s theory of gravity may solve cosmic puzzles

    Better simulating the dense parts of the universe could improve scientists’ view of how the universe evolves.

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