All articles tagged with #toi 561 b
JWST observations of TOI-561 b, a rocky world with a ~10-hour orbit close to its star, reveal a volatile-rich atmosphere and heat redistribution consistent with a magma-ocean–atmosphere cycle. This challenges the long-held view that such irradiated planets shed their atmospheres and revises the idea of the cosmic shoreline separating atmospheric from airless worlds.
NASA's JWST has provided the strongest evidence yet that the ultra-hot super-Earth exoplanet TOI-561 b, despite its extreme conditions, possesses a thick, volatile-rich atmosphere, challenging previous assumptions about small, hot planets losing their atmospheres. The findings suggest this planet has retained its atmosphere, possibly due to a balance between atmospheric escape and magma ocean absorption, opening new questions about planetary evolution in harsh environments.
New observations from the JWST reveal that the rocky exoplanet TOI-561 b, despite its extreme proximity to its star, retains a volatile-rich atmosphere and is likely covered by a global magma ocean, challenging previous assumptions about such 'dead rock' planets.
A new study reveals that the ancient exoplanet TOI-561 b, despite its extreme proximity to its star and high temperatures, has retained a thick atmosphere, challenging previous assumptions about hot, rocky planets and suggesting complex interactions between its surface and atmosphere. The planet's unique characteristics, including its low density and potential volcanic activity, are being studied using JWST data, providing new insights into planetary evolution in the early universe.
NASA's James Webb Space Telescope has found strong evidence that the ultra-hot rocky exoplanet TOI-561 b is surrounded by a dense atmosphere above a magma ocean, challenging previous beliefs about small planets close to stars being atmosphere-free. The planet's lower-than-expected density and temperature measurements suggest a volatile-rich atmosphere that persists despite intense stellar radiation, possibly maintained by a balance between atmospheric gases and a magma ocean.