star

  • Missing: a large and unstable blue star

    Even the Very Large Telescope can’t find it now.

    A massive and unstable star is missing from a dwarf galaxy, and astronomers are intrigued.It may just have become...

    Astronomy July 1, 2020
  • Watching on as Betelgeuse dims

    But don’t hold your breath waiting for an explosion.

    Astronomers have captured new images of the unprecedented dimming of Betelgeuse, a red supergiant star in the constel...

    Astronomy February 17, 2020
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    Star flung across the galaxy

    Milky Way’s supermassive black hole is the culprit.

    A star travelling through the Milky Way at more than six million km/h has been discovered by a team of international ...

    ASC Edits November 14, 2019
  • Hyper-fast star ejected by supermassive black hole

    Astronomers see first demonstration of the ‘Hills mechanism’.

    Astronomers have discovered a star travelling at more than six million kilometres an hour through the Milky Way after...

    Space November 13, 2019
  • Star gas, heading fast out of Dodge

    Hubble captures fast-moving ejecta.

    This picture, taken by the Hubble Space Telescope, operated jointly by NASA and the European Space Agency (ESA), can ...

    Space January 7, 2019
  • Using Einstein's theory to weigh a star

    Einstein predicted distant stars could be weighed using gravity.

    Gravity of a white dwarf star warps space and bends the light of a distant star behind it. Credit: NASA, ESA, and A. ...

    Physics June 11, 2017
  • An old star learns new tricks

    The pulse of a white dwarf has astrophysicists questioning what we thought we knew about the life...

    When textbooks are proven wrong, we scientists can’t help but celebrate. So let’s raise a glass to the white dwarf! W...

    Space April 25, 2017
  • Throw your arms around me

    Two sweeping spiral arms extend more than 10 billion kilometres from their host star.

    B. Saxton (NRAO / AUI / NSF); ALMA (ESO / NAOJ / NRAO)This image, captured with the Atacama Large Millimetre/submilli...

    Space October 7, 2016
  • Hot born-again star spotted quickly cooling off

    Astronomers have watched as SAO 244567 cycled through hot and cool phases in just a few decades.

    The Stingray nebula harbours the fast evolving star SAO 244567. Astronomers have watched the star turn up the heat an...

    Space September 14, 2016
  • Young star caught cooking up planets

    Astronomers peered at a young star and, for the first time, saw the earliest stages of planet for...

    This image compares the size of the Solar System with HL Tauri and its surrounding protoplanetary disc. Although the ...

    Space March 20, 2016
  • Galactic ghosts

    Floating, seemingly serenely, in the vastness of interstellar space are numerous ethereal clouds ...

    T.A. Rector/U. Alaska Anchorage/ H. Schweiker/WIYN/NOAO/AURA/NSF Taking flightGiven the variety of strange ...

    Space December 28, 2015
  • The strange case of the speeding supernovae

    What causes a star to zoom across space and then explode? Belinda Smith explains.

    A merging galaxy, also known as NGC 6240. It is believed that rogue exploding supernovae can be flung out of these m...

    Space September 7, 2015
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