One of the most massive exoplanets ever seen was discovered in data collected by the Transiting Exoplanet Survey Satellite (TESS) telescope. Cataloged as TOI-1075 b, this rocky world appears to have a surface covered by molten magma, and the years there last about half a day on Earth.

The discovery of TOI-1075 b was announced in a NASA press release, published in early November. But now “new data show that TOI-1075 b is one of the most massive super-Earths ever discovered,” they described. The so-called super-Earths represent the class of exoplanets more massive than Earth but less than Neptune.

During its observations, TESS operates with the transit method, that is, it studies the sky in search of changes in the brightness of the stars. If any of them dim temporarily, there may be an exoplanet passing in front of it from the telescope’s perspective. The method has already resulted in the identification of more than 5,000 exoplanet candidates.

TESS data showed that TOI-1075 b has a surface temperature of approximately 1,050 ºC, which is quite high due to its close proximity to its star. Also, this planet takes just 14.5 hours to complete one orbit. If you could travel there, you would see that your weight in this world would be three times what it is on Earth, thanks to the great mass that provides an intense gravitational pull there.

According to the space agency, the discovery of TOI-1075 b will help scientists refine models of planetary formation. “This, in turn, will help predict the types of atmospheres that super-Earths and other types of planets have, or whether they actually have any atmosphere at all,” they wrote.

Source: NASA