We've seen helium baked off a rocky exoplanet's atmosphere
If the large, rocky planet is losing helium, then we can infer what is left behind.
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A Jupiter-size planet that escaped its star's death
It's unclear how the planet avoided its star's bloated red giant stage.
Planet orbits so close to its star that their magnetic fields connect
At the right point of the orbit and stellar cycle, the star's chromosphere brightens.