Hubble Uncovers Star’s Unusual Atmosphere

  • Released Wednesday, August 13, 2025

Astronomers using NASA’s Hubble Space Telescope have found a rare ultra massive white dwarf formed from a stellar merger.

The discovery was made possible by Hubble’s sensitive ultraviolet observations and suggests these unusual white dwarfs may be more common than once thought.

The white dwarf is 128 light-years away and 20 percent more massive than the Sun. In visible light it looked like a typical white dwarf, but Hubble’s ultraviolet data revealed something unusual…


For more information, visit science.nasa.gov/mission/hubble

Credit: NASA's Goddard Space Flight Center
Paul Morris: Lead Producer

Music Credit:
"Zero Gravity" Brice Davoli [SACEM] via Koka Media [SACEM], Universal Production Music France [SACEM] and Universal Production Music

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This page was originally published on Wednesday, August 13, 2025.
This page was last updated on Monday, August 11, 2025 at 4:07 PM EDT.