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Imagine if every time you went to sleep, a year passed, on the planet SWEEPS-10 it's like this: every ten hours, a new year. Mercury, which is the closest planet to our sun, takes 88 days to orbit it, in which SWEEPS-10 belongs to a new class of exoplanets, characterized by "ultra-short-periods", which last less than an Earth day.

Located more than 20,000 light-years from Earth, close to the center of the Milky Way, rocky OGLE-2005-BLG-390Lb is a far cry from its parent star, a red dwarf. For this reason, the temperature on its surface is estimated to reach minus 220 degrees Celsius. Under these conditions, substances such as ammonia and methane, which for us are common in the liquid state, can appear in the solid state.

Tsuki traveled through some galaxies when he could see that some worlds were experiencing difficulties, with the provenance that it was even more difficult to find habitable worlds.