Astronomers have identified a promising new exoplanet, Gliese 12 b, located a mere 40 light-years away in the Pisces constellation.  It’s unique size, between that of Earth and Venus, and its proximity to a cool red dwarf star make it a prime candidate for atmospheric research.

This discovery was made possible by NASA’s Transiting Exoplanet Survey Satellite (TESS) and a network of ground-based observatories.  TESS, designed to survey the sky for exoplanets by monitoring the subtle dimming of stars as planets pass in front of them, played a crucial role in pinpointing Gliese 12 b.

The host star, Gliese 12, is a red dwarf, a type of star known for its small size and relatively low temperature. These characteristics make it easier to detect Earth-sized planets orbiting them.  In the case of Gliese 12 b, its 12.8-day orbit brings it close enough to its star for potential atmospheric studies.

The planet’s estimated surface temperature, assuming no atmosphere, is around 107 degrees Fahrenheit (42 degrees Celsius). However, the presence and composition of any atmosphere could significantly alter this figure.

What makes this discovery particularly exciting is the prospect of studying the planet’s atmosphere using NASA’s James Webb Space Telescope.  This powerful instrument, launched in 2021, is capable of analyzing the atmospheres of exoplanets, potentially revealing clues about their composition and habitability.

The discovery of Gliese 12 b is a testament to the ongoing efforts of astronomers to uncover the secrets of our universe. As technology advances, we can expect to find more and more exoplanets, some of which may even harbor the conditions necessary for life.  For now, Gliese 12 b stands as a beacon of hope, offering a unique opportunity to delve deeper into the mysteries of planetary atmospheres.

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