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Scientists explain importance of newly discovered space signals – RT World News

If confirmed, it would be the first such celestial object to be discovered

Astronomers have identified signals emitted by what they believe to be the first moon discovered outside the solar system. The results are provisional, the celestial body being too far away to observe it directly.

Details of the discovery were published in the scientific journal Nature Astronomy. The moon, which apparently orbits a star some 5,500 light years from Earth, has been given the name Kepler-1708 bi. Based on evidence from the now decommissioned Kepler Space Telescope, the newly discovered moon could be 2.6 times the size of Earth and be made of gas.

Scientists have so far confirmed the existence of about 5,000 planets outside the solar system, called exoplanets. However, so far only two exomoons, including the Kepler-1708 bi, have been identified. The first was detected in 2017; however, its existence has still not been proven beyond a reasonable doubt.

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Due to the distance between our solar system and these moons, it is simply not possible to see them directly most of the time. Astronomers must rely on circumstantial evidence in the form of very small, regular drops in brightness emitted by exoplanets, known as transit light curves.

Researchers believe exmoons are quite different from the moons we observe in the solar system, both in terms of the formation processes involved and orbit patterns.

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