The white dwarf star currently consuming its twin

Space
10 Sep 2025 • 8:49 PM MYT
The Independent
The Independent

The world’s most free-thinking newspaper

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  • Scientists have identified a "greedy" white dwarf star, V Sagittae, which is “going thermonuclear” as it rapidly devours its twin star.
  • The double star system, located 10,000 light-years from Earth, orbits every 12.3 hours, with the white dwarf's intense feeding causing it to burn unusually bright.
  • Professor Phil Charles explained that V Sagittae's extreme brightness, a mystery since its 1902 discovery, is due to the white dwarf "sucking the life out of its companion star."
  • Dr Pasi Hakala's team discovered a giant ring of gas around the stars, formed because the white dwarf cannot consume all the mass transferred from its twin.
  • Astronomers predict that the system's frantic lurching indicates an imminent, violent end, with a potential supernova explosion so bright it would be visible from Earth even in daylight.

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