Science

First known 'disappearing planet' has a neighbor that makes it wobble like a top

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 09/11/2026, 21:25:24 UTC.

Briefings

UCLA astronomers identified TOI-2535 b, the first known 'disappearing planet' orbiting 1,000 light-years away. This gas giant completes an orbit in just 8.25 days, nearly 10 times faster than Mercury's 88-day year around the Sun. The discovery highlights extreme orbital dynamics in distant systems.

Key points

• TOI-2535 b is a hot Jupiter orbiting a star 1,000 light-years away.
• The planet orbits its star in 8.25 days, significantly faster than Mercury's 88-day year.

Context

This discovery marks the first known case of a planet vanishing from direct observation due to extreme orbital speed, challenging existing models of planetary stability in distant systems.

Limitations

Evidence is limited to a single snapshot from 2026. No follow-up observations confirm the planet's current position or stability. The 8.25-day orbital period is a measured value, not a forecast.

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