Astronomy

  1. black hole explosion
    Space

    A black hole eruption marks the most powerful explosion ever spotted

    Hundreds of millions of years ago, a black hole blasted out roughly 100 billion times as much energy as the sun is expected to emit in its lifetime.

    By
  2. solar eclipse
    Space

    50 years ago, scientists were studying why the sun’s corona is so hot

    In 1970, scientists were hoping to learn why the sun’s corona is so hot during an eclipse. Fifty years later, the corona’s magnetic field may hold some answers.

    By
  3. orbits around supermassive black hole in Milky Way
    Physics

    This fundamental constant of nature remains the same even near a black hole

    A number that sets the strength of electromagnetic interactions isn’t altered by the extreme gravity around the Milky Way’s supermassive black hole.

    By
  4. Quasar Markarian 231
    Astronomy

    Molecular oxygen has been spotted beyond the Milky Way for the first time

    Astronomers have detected molecular oxygen in another galaxy for the first time. The discovery is only the third sighting beyond our solar system.

    By
  5. illustration of a large, dusty galaxy
    Space

    An ancient galaxy grew massive — then oddly stopped making stars

    After ferociously producing stars for a few hundred million years, this galaxy in the early universe gave up, and astronomers aren’t sure why.

    By
  6. illustration of ESA Solar Orbiter probe in front of the sun
    Space

    ESA’s Solar Orbiter will be the first spacecraft to study the sun’s polar zones

    ESA's Solar Orbiter is now on its way to the sun, beginning a nearly two-year journey.

    By
  7. CHIME radio telescope
    Space

    This is the first fast radio burst known to have a steady beat

    Brief blasts of radio energy from other galaxies keep stumping astronomers, but one seems to be on a 16-day cycle, a new clue in an ongoing puzzle.

    By
  8. white dwarf illustration
    Space

    The wobbling orbit of a pulsar proves Einstein right, yet again

    Astronomers have found a pulsar’s orbit being rocked to and fro as a neighboring white dwarf whips up spacetime, in accordance with general relativity.

    By
  9. Spitzer galaxy image
    Space

    As NASA’s Spitzer telescope’s mission ends, here’s a look back at its discoveries

    For more than 16 years, the Spitzer Space Telescope has witnessed the births and deaths of stars, charted the Milky Way, found faraway worlds and more.

    By
  10. young star jet
    Space

    Phosphorus, a key ingredient of life, has been found in a newborn star system

    Astrochemists map phosphorus-bearing molecules in a star-forming cloud, giving clues to how this vital element may have arrived on Earth.

    By
  11. Proxima Centauri illustration
    Space

    A second planet may orbit Proxima Centauri

    The star closest to the sun may harbor another planet, this one much more massive and colder than Earth.

    By
  12. Egg nebula stardust
    Space

    This ancient stardust is the oldest ever to be examined in a lab

    Tiny grains of stardust that formed long before our solar system are giving new insight into star formation in the Milky Way.

    By