NASA’s Chandra X-ray Observatory has made a thrilling discovery, capturing a dramatic cosmic event. The very young planet, TOI 1227 b, is undergoing a violent transformation as its atmosphere is relentlessly stripped away by intense X-ray emissions from its host star.
This exoplanet, a mere 8 million years old, is experiencing severe atmospheric erosion due to its star’s radiation. Although it’s currently puffed up to the size of Jupiter, its actual mass is closer to Neptune’s. The situation seems dire as the atmosphere cannot withstand the high dose of X-rays, leading to its gradual but certain demise.
Located about 330 light-years away, TOI 1227 b orbits a red dwarf star much cooler than our Sun in visible light but significantly more intense in X-rays. This proximity, less than a fifth of Mercury’s distance from the Sun, exposes the planet to a massive X-ray dosage, stripping away around 1 trillion grams of material every second.
According to the research, this relentless assault will likely render the planet a small, barren rock in about a billion years, effectively erasing any chance of sustaining life. This discovery provides a sobering glimpse into the dynamic and sometimes destructive processes that govern planet formation and evolution.
