Original title: Scientists discover "super earth": the neighbors of the solar system are three times larger than the earth
On November 14, a British newspaper Nature published a study in which scientists claimed to have discovered "super-earth" in the orbit of a nearby star. How big is this "Super Earth"? Its quality is more than three times the size of the earth. How cool is she? Its temperature is about 238 degrees below zero. Earth is generally a planet of greater mass than Earth, but not as large as Neptune and Uranus in the solar system.
Data Map: On July 14, 2015 NASA Pluton Detector New Horizons returned a series of the most clear photos of Pluto. At this point, nine solar brothers finally have a clear picture.
According to reports, the planet and its stars from Earth are 30 trillion miles away. Barnard's star is the closest star of our solar system. Astronomers have been searching for planets around them for decades. Known as Barnard B, this newly discovered planet is the second-known explorer of the Earth and the fastest star on the night sky.
Exoplanet is a planet outside our solar system. Ignati Ribas, chief scientist of the Spanish Institute of Space Science, said in a statement: "After careful analysis, we have 99% reliability that the planet is there." Data of various telescopes around the world This cool and dark world.
"We have used seven different instruments that span 20 years of measurement, making it one of the largest and most frequently used observations to date," scientists said.
After the study, the planet is located in the distant part of the star, called the "snow line". This significantly exceeds the living area where liquid water and possible life are present. It is a barren and cold world, and the light of Barnard's stars represents only 2% of Earth's energy from the sun. Due to its proximity to the Earth, this star has long been running for exploration. But the previous search could not be found.
Astronomer Díaz of the University of Buenos Aires, Argentina, said: "This exceptional planet offers critical information to reveal the challenges of planetary formation and development."