Man discovers the smallest planet.

On May 25th, a research team led by Dr. McMeyer of the Geneva Observatory in Switzerland reported that the lightest and smallest planet outside the solar system had been discovered so far. The mass of this planet is 14 times that of the earth. It revolves around a star named Mueri, which is very similar to the sun. This star is located in the constellation Tiantan, 50 light-years away from the earth. When night falls, we can see the star from the southern hemisphere. The revolution time of the newly discovered planet is only 9.5 days. Researchers say it may be a rocky planet with a very thin atmosphere, just like a "super earth". But unlike the earth, the surface temperature of this planet is very high during the day, reaching more than 600 degrees Celsius, so it is almost impossible for life to exist. Nevertheless, this discovery is still a great progress in science and technology, because scientists have never found such a small planet near a star outside our solar system before.

On August 26th, another research group led by Frederic Pont of Geneva Observatory in Switzerland discovered a new planet and named it "OGLE-TR-111B".