Astronomy

More Stories in Astronomy

  1. illustration of a steamy ocean horizon
    Astronomy

    New ideas on what makes a planet habitable could reshape the search for life

    New definitions of “habitable worlds” could include planets with global oceans under a steamy hydrogen atmosphere or exclude ones that started out habitable but lost all their water.

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  2. image of pluto
    Astronomy

    The definition of planet is still a sore point – especially among Pluto fans

    In the 15 years since Pluto lost its planet status, scientists have continued to use the definition that works for them.

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  3. illustration of a brown dwarf
    Astronomy

    Here’s how cool a star can be and still achieve lasting success

    The dividing line between successful stars and failed ones is a surface temperature of about 1,200° to 1,400° Celsius, a new study reports.

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  4. Astronomer Vera Rubin at Lowell Observatory in 1965
    Space

    Vera Rubin’s work on dark matter led to a paradigm shift in cosmology

    ‘Bright Galaxies, Dark Matter, and Beyond’ tells the story of how astronomer Vera Rubin provided key evidence for the existence of dark matter.

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  5. illustration of a black hole
    Astronomy

    Measuring a black hole’s mass isn’t easy. A new technique could change that

    The timing of flickers in the gas and dust in a black hole’s accretion disk correlates to its mass, a new study finds.

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  6. illustration of gravitational waves forming around two black holes spiraling around one another
    Physics

    A bounty of potential gravitational wave events hints at exciting possibilities

    Of about 1,200 possible events, most are probably false alarms, but some could be ripples in spacetime that are especially hard to spot.

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  7. simulation of a black hole's magnetic field
    Physics

    Black holes born with magnetic fields quickly shed them

    New computer simulations show one way that black holes might discard their magnetic fields.

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  8. illustration of a massive star collapsing and emitting gamma rays
    Astronomy

    A super-short gamma-ray burst defies astronomers’ expectations

    A faraway eruption of gamma rays that lasted for only a second had a surprising origin: the implosion of a massive star.

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  9. star PDS 70 surrounded by dusty ring of debris, with bright dot inside ring that may be a moon forming
    Astronomy

    The tiny dot in this image may be the first look at exomoons in the making

    New ALMA observations offer some of the strongest evidence yet that planets around other stars have moons.

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