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'Earth's twin found': Astronomers uncover a potential habitable world just 20 light-years away

Produced by: Mohsin Shaikh

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Nearby Prospect

HD 20794 d, just 20 light-years away, may be a habitable exoplanet orbiting a Sun-like star.

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Liquid Hope

The planet’s orbit places it in the habitable zone—where liquid water could exist—for part of its year.

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Elliptical Dance

HD 20794 d’s elongated orbit means it swings between freezing and habitable temperatures.

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Massive Mystery

With a mass nearly six times Earth’s, its density is still unknown—rocky world or mini-Neptune?

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Stellar Neighbor

Orbiting a stable, Sun-like yellow dwarf, this planet offers intriguing parallels to Earth.

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Faint Wobble

Detected through tiny shifts in its star’s spectrum, its signal challenged the limits of technology.

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Future Imaging

At only 20 light-years away, this exoplanet might be close enough for future space missions to image.

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Cautious Optimism

Its partial habitability and unknown composition spark debate about its potential for life.

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Earth’s Twin?

HD 20794 d might be one of the closest Earth-like planets—pending further exploration.