Astronomy

  1. illustration of gravitational waves from merging black holes
    Astronomy

    Gravitational wave ‘radar’ could help map the invisible universe

    Gravity ripples scattering off warped spacetime near massive objects might help astronomers peer inside stars and find globs of dark matter.

    By
  2. the galaxy M81
    Astronomy

    Seven newfound dwarf galaxies sit on just one side of a larger galaxy

    Seven newly found dwarf galaxy candidates are stick to just one side of the large galaxy M81. Astronomers don’t know why.

    By
  3. photo of the sun
    Astronomy

    Neutrinos hint the sun has more carbon and nitrogen than previously thought

    Scientists still don’t know the sun’s exact chemical composition, which is crucial for understanding the entire universe. Neutrinos will help.

    By
  4. illustration of an isolated stellar-mass black hole
    Astronomy

    A celestial loner might be the first known rogue black hole

    The object could be the first isolated stellar-mass black hole identified in the Milky Way — or it might be an unusually heavy neutron star.

    By
  5. Oval-shaped dark blue map of the Milky Way with color patterns representing concentrations of galaxy mergers, supernovas and newborn stars.
    Astronomy

    New Gaia data paint the most detailed picture yet of the Milky Way

    Gaia’s new data can tell us about galaxies the Milky Way has swallowed, the young solar system and asteroids that could hit Earth.

    By
  6. the MeerKAT observatory
    Astronomy

    A newfound, oddly slow pulsar shouldn’t emit radio waves — yet it does

    The highly magnetic neutron star rotates three times slower than the previous record holder, challenging the theorical understanding of these objects.

    By
  7. an image of a 'hedgehog,' a newly found feature on the sun that appears to radiate spiky jets of cooler gas against a background of hotter plasma
    Astronomy

    The Solar Orbiter spacecraft spotted a ‘hedgehog’ on the sun

    In its closest flyby yet of the sun, the Solar Orbiter came within 48 million kilometers of our star, revealing new details.

    By
  8. Crab Nebula
    Astronomy

    Pulsars may power cosmic rays with the highest-known energies in the universe

    Earth is pelted by energetic particles from space. The source might be the magnetic remains of massive stars, a new study suggests.

    By
  9. illustration of a tidal disruption event
    Particle Physics

    High-energy neutrinos may come from black holes ripping apart stars

    Where extremely energetic neutrinos originate from is a mystery. A new study supports the idea that “tidal disruption events” are one source.

    By
  10. An image of Sagittarius A*, the black hole at the center of the Milky Way
    Astronomy

    We finally have an image of the black hole at the heart of the Milky Way

    Observations from the Event Horizon Telescope reveal the turbulent region around our home galaxy’s black hole, Sagittarius A*, in new detail.

    By
  11. illustration of sunlight heating and evaporating the disk of gas and dust around a young star
    Astronomy

    The sun’s searing radiation led to the shuffling of the solar system’s planets

    As the young sun’s radiation evaporated gas from its surrounding disk, it triggered a jumbling of the giant planets’ orbits, simulations suggest.

    By
  12. an illustration of two black holes merging
    Physics

    Gravitational waves gave a new black hole a high-speed ‘kick’

    Ripples in spacetime revealed that two black holes united into one, which then sped off at around 5 million kilometers per hour.

    By