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اكتشاف أول دليل لكوكب خارج مجرة درب التبانة على بعد 28 مليون سنة ضوئية

The discovery of the first evidence of a planet outside the Milky Way, 28 million light-years away

Scientists discover The first evidence of a planet Outside the Milky Way, 28 million light-years away EarthExperts using NASA’s Chandra X-ray Observatory and the European Space Agency’s XMM-Newton telescope have discovered the planet in the spiral galaxy Messier 51 (M51), also known as the Whirlpool Galaxy.

According to the British newspaper, “Daily Mail”, all the exoplanets that have been discovered so far, and they are more than 4,000, have been observed in the Milky Way, less than 3,000 light-years away from Earth.

The NASA statement said that if this planet is confirmed, it will be thousands of times farther than those found in Milky Way.

“We are trying to open a whole new arena for finding other worlds by searching for planet candidates at X-ray wavelengths, a strategy that makes it possible to detect them in other galaxies,” said Roseanne Di Stefano of Harvard University.

The possible planet has also been found on a transit-based method, which uses a celestial body passing in front of a star, as the light from the star is seen receding in order to confirm the object’s presence.

This method looks at dips in X-rays but not the light of a star as the planet passes in front of it.

The planet could be part of a star system known as M51-ULS-1, which contains either a black hole or a neutron star and a companion star that has a mass roughly 20 times the mass of the Sun.

X-ray emissions dropped to zero while observing the system, indicating that the planet is about the same size as Saturn and orbits a neutron star or black hole at a distance twice as far as Saturn orbits the sun. this method.

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