Collection: Gravitational waves

A collection of articles on the search for gravitational waves

  1. Astronomy

    Single black hole may be masquerading as a pair

    New observations of a recently discovered binary black hole reveal that astronomers may have been seeing double.

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  2. Astronomy

    Rare trio of supermassive black holes found

    Three supermassive black holes residing where two distant galaxies collide offer new clues about where to look for gravitational waves.

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  3. Physics

    Gravity’s Ghost and Big Dog

    Sociologist Harry Collins chronicles the occasionally heated (and often arcane) debates among scientists studying gravitational waves.

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  4. Astronomy

    Unusual three-star system promises new test of gravity

    A unique stellar threesome could help astronomers test the leading theory of gravity to unprecedented precision.

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  5. Physics

    Lasing Beyond Light

    Laser physicists have set their sights on new types of waves — manufacturing beams of sound, creating plasma swells and looking for ripples in spacetime.

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  6. Astronomy

    Making waves

    Locked in a deadly embrace, two white dwarf stars may be the strongest source of gravitational waves now flooding our galaxy.

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  7. Physics

    Catch a Wave

    Detection of gravitational waves predicted by Einstein's 1916 general theory of relativity may finally occur, thanks to a new generation of laser-based observatories.

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  8. The Last Three Minutes

    Computing the shape of gravitational waves to come

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