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.

  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.

  3. Physics

    Gravity’s Ghost and Big Dog

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

  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.

  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.

  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.

  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.

  8. The Last Three Minutes

    Computing the shape of gravitational waves to come