SMRTR Science & EngineeringJul 19, 2026Live Science

'It's absolutely exciting!': Astronomers discover an atmosphere around an Earth-like planet in the habitable zone for first time ever

SMRTR summary

Astronomers detected an atmosphere around LHS 1140 b, a rocky super-Earth 48 light-years away, marking the first time an atmosphere has been confirmed around a habitable-zone planet. Scientists spotted helium leaking from the planet, suggesting its atmosphere has survived over 3 billion years of stellar radiation.

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