The Trappist-1 exoplanets could be worlds of water or rust
The Trappist-1 exoplanets are comprised of similar materials to Earth but their lower density could indicate radically different worlds.
Tag: planet habitability
![An artist's conception of HD 209458 b, an exoplanet whose atmosphere is being torn off at more than 35,000 km/hour by the radiation of its close-by parent star. This hot Jupiter was the first alien world discovered via the transit method, and the first planet to have its atmosphere studied. [NASA/European Space Agency/Alfred Vidal-Madjar (Institut d'Astrophysique de Paris, CNRS)]](https://cdn.zmescience.com/wp-content/uploads/2020/11/247271_web-1-350x250.webp)
Stellar flares can strip away the atmosphere of planets, make them less habitable
A new study highlights the importance of solar flares and space weather in reducing the habitability of exoplanets.