Super-Hot Rocky Planet Discovered: Atmosphere Surprise
- A team led by researchers at the Carnegie Institution for Science, utilizing the James Webb Space Telescope,made the discovery while studying TOI-561 b.
- The presence of an atmosphere on TOI-561 b is surprising, as previous hypotheses suggested that small, very hot planets rapidly lose their atmospheres after formation.
- TOI-561 b is approximately twice the size of Earth but experiences drastically different conditions.
Astronomers Discover Atmosphere Around Rocky Exoplanet TOI-561 b
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– Astronomers have announced the clearest evidence yet of an atmosphere surrounding a rocky planet outside our solar system, challenging existing theories about planetary evolution.
Revelation details
A team led by researchers at the Carnegie Institution for Science, utilizing the James Webb Space Telescope,made the discovery while studying TOI-561 b. this planet is a hot, rocky world orbiting its star in a mere 10.56 hours.
The presence of an atmosphere on TOI-561 b is surprising, as previous hypotheses suggested that small, very hot planets rapidly lose their atmospheres after formation.
Planet Characteristics
TOI-561 b is approximately twice the size of Earth but experiences drastically different conditions. It orbits incredibly close to its star – just one-tenth the distance between Mercury and the Sun – resulting in permanent daylight on one side.
Scientists previously expected a planet of this size and temperature to be unable to retain an atmosphere for an extended period.
Challenging Existing theories
“Based on what we know about other systems, such a planet was thought to be to small and too hot to retain its atmosphere for long after its formation,” explained Nicole Wallach, a co-author of the study, in a statement to Captivating Engineering.
She further noted that these observations “turn the prevailing concepts about planets with very short orbital cycles upside down.”
Implications for planetary Formation
Researchers hypothesize that TOI-561 b formed in a unique chemical habitat, differing from those of planets within our solar system. This makes the planet a valuable opportunity to study planetary formation in the early universe.